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Discrete Piezoelectric Stacks, 5.2 µm to 100.0 µm Travel


  • Low Voltage Piezo Stacks with 75 V, 100 V, or 150 V Max Voltage
  • Sub-Millisecond Response Time with No Load
  • Free Stroke Displacement Options from 5.2 µm to 100.0 µm

PK3JRP1

100 V PZT with One Hemispherical and One Flat Ceramic Plate

PK2FSP2

75 V PZT with Two Flat Ceramic Plates

PK4DMP2

150 V PZT with
Two Flat Ceramic Plates

PK2FMP1

75 V PZT with
One Hemispherical and
One Flat Ceramic Plate

PKFCUP

Conical End Cup

PKFEP4

Flat End Plate

PKFESP

End Hemisphere

Related Items


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Piezo Selection Guidea
Piezo Chips
Square
Square with Through Hole
Round
Ring
Tube
Shear
Benders
Piezo Stacks
Discrete, Square
Discrete, Square with Through Hole
Discrete, Round
Discrete, Ring
Discrete, Shear (1D to 3D Positioners)
Co-Fired, Square
Co-Fired or Discrete, Square with Strain Gauges
Piezo Actuators
Mounted
  • For more information about the design and function of piezoelectric chips, please see our piezoelectric tutorial.
Button to Download Piezo Actuator Brochure
Piezo Tutorial
Webpage Features
info icon Clicking this icon below will open a window that contains specifications, mechanical drawings, and graphs.

Features

  • Drive Voltage Ranges: 0 to 75 V, 0 to 100 V, or 0 to 150 V
  • Free Stroke Displacement Options from 5.2 µm to 100.0 µm
  • Each Stack Contains Multiple 75 V, 100 V, or 150 V Piezoelectric Chips
  • For Use in Open-Loop Setups
  • Pre-Attached Wires (~75 mm Long) for Ease of Integration
  • Ideal for OEM Applications
  • Conical End Cups, Hemispheric End Pieces, and Flat End Plates Also Available Separately
  • Custom Options Available, Please Contact Tech Support

Thorlabs' Discrete Piezoelectric Stacks consist of multiple piezoelectric chips stacked face-to-face and bonded via epoxy and glass beads. By combining many chips, a stack is able to achieve a free stroke displacement that is significantly larger than that of its single chip counterpart while maintaining sub-millisecond response times and a low drive voltage range.

Ceramic plates cap the two mounting surfaces of the piezoelectric stack, which are located at opposite ends of the stack. One plate is flat, and the other can be chosen to be flat or hemispherical. The hemispherical plate is attached so that the curved surface is exposed to the interface with the load.

Displacement Plot
Click to Enlarge

Correct and Incorrect Methods for Interfacing an
Off-Axis Load with a Piezo Stack (For More
Examples, See Operation Tab)

The ceramic plates assist in both distributing the applied force of the load over the mounting surface of the stack and in directing the force along the actuator's axis of translation. The flat and hemispherical ceramic plates offer different advantages. When the load can be directed along the translating axis of the actuator, the flat plate with its large contact area provides a better option for achieving maximum force transfer. The hemispherical ceramic plate makes it possible to interface the actuator with an off-axis load, as the curved surface routes the applied force along the actuator's translating axis.

The PKJCUP, PKFCUP, and PKGCUP conical end cups, which are compatible with ball contacts with diameters between 1.5 to 7.0 mm, can also be used to safely interface the load and the actuator. Please see the Operation tab for more information on interfacing piezoelectric actuators with loads, special operational considerations, and data that will allow the lifetimes of these actuators to be estimated when their operational conditions are known.

A ceramic layer covering the other four sides of the stack acts as a barrier against moisture. The ceramic layer offers better protection against moisture than an epoxy coating. For convenience, the stacks have pre-attached 75 mm long wires and are wrapped in Kapton® tape. Piezo chips with custom dimensions, voltage ranges, and coatings are available. Please contact Tech Support for more information.

Piezo Manufacturing

Click to Enlarge

Dicing the PZT Block into Individual Elements

Click to Enlarge

Chips After Binder Burnout and Sintering

Thorlabs' In-House Piezoelectric Manufacturing

Our piezoelectric chips are fabricated in our production facility in China, giving us full control over each step of the manufacturing process. This allows us to economically produce high-quality products, including custom and OEM devices. A glimpse into the fabrication of our piezoelectric chips follows. For more information about our manufacturing process and capabilities, please see our Piezoelectric Capabilities page.

  • Build Blocks from Flexible Sheets of Lead Zirconate Titanate (PZT) Powder
    • Screen Print Electrodes on Each Individual Sheet
    • Layer the Printed Sheets One Top of Another
    • Consolidate the Layered Sheets in an Isostatic Press
  • Dice the Block into Individual Elements
  • Purge Solvent and Binder Material Residues by Heat Treating the Elements
  • Sinter the Elements to Fuse the Piezoelectric Pressed Powder and Grow PZT Crystals
  • Lap the Elements to Achieve Tight Dimensional Tolerances: ±5 µm for Each Element
  • Screen Print the Outer Electrodes on the Elements
  • Align the Individual PZT Crystals Along the Same Axis by Poling the Elements

Click to Enlarge

Diagram of Piezo Stack Insulation Methods:
(a) In-Chip Insulation Used in Standard Chips and Discrete Stacks,
(b) On-Stack Insulation Used in Co-Fired Stacks
Mechanical Drawing of Unwired Chip
Click to Enlarge

Schematic of PK4DMP2 Piezo Stack

Operation Notes

Co-Fired Piezo Chips, Co-Fired Piezo Stacks, and Discrete Piezo Stacks
Generally speaking, Thorlabs' co-fired piezo chips and stacks are constructed similarly. In both cases, a structure is built up from alternating electrode layers and green-state lead zirconate titanate (PZT) piezoelectric layers. The assembled structure is then sintered into a single monolithic unit. Supply electrodes of opposite polarity are attached to opposite sides of the structure. Each internal electrode is electrically coupled to one or the other supply electrode, such that no two adjacent internal electrodes have the same polarity. The most significant differences between the co-fired chips and stacks arise from the way each internal electrode is electrically isolated from the supply electrodes of opposite polarity. The different electrical insulation approaches influence the mechanical properties of the actuators. Actuators fabricated using the two different approaches are diagrammed in Figure 1.

In the case of the chips (In-Chip Insulation), the internal electrodes of opposite polarities alternate. Each internal electrode layer is shorter than the full width of the piezo layer. All electrodes of one polarity have edges that are flush with one side of the chip, and all electrodes with the opposite polarity are flush with the opposite side of the chip. Because the electrode does not extend all the way to the opposite edge, the far end of the electrode is completely surrounded by PZT material. The PZT material enclosing the end of the electrode is insulating, which electrically isolates this electrode from the supply electrode of opposite polarity. This approach to electrically insulating the electrodes creates a region of stress at the edge of the electrode. The stress arises both due the abrupt change in thickness on either side of the electrode edge, as well as the tensile stress created when the PZT material sandwiched between electrodes responds to an applied voltage drive signal, but the insulating PZT material beyond the edge of the electrodes does not. This stress limits the maximum height of chips manufactured using this approach. The height of chips are limited to ensure internal stresses are low and do not affect lifetime or performance. Chips are sealed in a ceramic layer that offers superior resistance to humidity and heat than epoxy resin coatings.

One way of increasing the height, and therefore the maximum stroke, of piezo actuators based on these chips is to fabricate discrete piezo stacks. These are manufactured by bonding multiple chips together in series using a glass-bead epoxy. Discrete stacks can be fabricated to substantially longer lengths than co-fired chips or stacks, and this allows them to achieve higher maximum displacements while maintaining sub-millisecond response times and a low drive voltage range. As the constituent chips are sealed within a ceramic barrier layer, discrete stacks have superior resistance to humidity and heat than co-fired stacks, which are sealed in an epoxy resin coating.

In the case of co-fired stacks (On-Stack Insulation), the electrodes extend across the full width of the PZT layers. The edges of the electrodes are flush with all four sides of the stack, including the side with the supply electrode of opposite polarity. The edge of the internal electrode is insulated from that supply electrode by a layer of glass filament applied to the side of the stack. Precision localized application of the glass filament ensures that the electrode edge is electrically isolated from the supply electrode, and that the filament is applied over minimal surface area; the ability of the supply electrode to make electrical connections to the desired internal electrodes is not affected, and the small amount of applied glass filament does not affect the operation of the actuator. With their full-width electrodes, piezo actuators made using this insulating approach are characterized by homogeneous internal stress. Co-fired stacks can therefore be fabricated with greater heights than chips fabricated using the in-chip insulation approach. Co-fired stacks also have a higher percentage of active PZT material than the discrete stacks, which include inactive bonding layers of glass-bead epoxy. They are coated in an epoxy resin.

Power Connections
A positive bias should be applied across the device using the wires connected to the electrodes. The positive wire should receive positive bias, and the other wire should be connected to ground. Applying a negative bias across the device may cause mechanical failure. The positive wire may be identified in two ways: it is red, as can be seen in the product images, and it is attached to electrodes on the side of the stack indicated by the line of + marks, as is depicted in the image at right. (On some devices, the line of + marks is replaced with a line of dots.) The wire that should be grounded is black, and it is attached to the electrodes on the side of the stack opposite the side with the positive electrodes.

Soldering Wire Leads to the Electrodes
If wire leads must be reattached to the electrodes, a soldering temperature no higher than 370 °C (700 °F) should be used, and heat should be applied to each electrode for a maximum of 2 seconds. Solder the lead to the middle of the electrode and keep the region over which heat is applied as small as possible.

Interfacing a Piezoelectric Stack with a Load
Piezoceramics are brittle and have low tensile strength. Avoid loading conditions that subject the actuator to lateral, transverse, or bending forces. When applied incorrectly, an external load that may appear to be compressive can, through bending moments, cause high tensile stresses within the piezoelectric device. Improperly mounting a load to the piezoelectric actuator can easily result in internal stresses that will damage the actuator. To avoid this, the piezoelectric actuator should be interfaced with an external load such that the induced force is directed along the actuator's axis of displacement. The load should be centered on and applied uniformly over as much of the actuator's mounting surface as possible. When interfacing the flat surface of a load with an actuator capped with a flat mounting surface, ensure the two surfaces are highly flat and smooth and that there is good parallelism between the two when they are mated. If the external load is directed at an angle to the actuator's axis of displacement, use an actuator fitted with a hemispherical end plate or a flexure joint to achieve safe loading of the piezoelectric stack.

To accommodate a variety of loading conditions, these discrete piezoelectric stacks may be purchased with either two flat ceramic end plates or one flat and one hemispherical end plate. In addition, Thorlabs offers Conical End Cups which feature concave surfaces that can interface with Ø1.5 mm to Ø7.0 mm hemispherical or curved contacts. To attach a load to the piezoelectric stack, we recommend using an epoxy that cures at a temperature lower than 80 °C (176 °F), such as our 353NDPK or TS10 epoxies or Loctite® Hysol® 9340. Loads should be mounted only to the faces of the piezoelectric stack that are fitted with the flat or hemispherical ceramic end plates; the other sides of the actuator do not translate, and mounting a load to a non-translating face may lead to the mechanical failure of the actuator. Some correct and incorrect approaches to interfacing loads with piezoelectric stacks capped with both kinds of end plates are discussed in the following. 

Displacement Plot
Click to Enlarge

Actuation of a lever arm using stack fitted with a flat plate (A, Incorrect), and a hemispherical plate (B, Correct). 
Temperature Rise Plot
Click to Enlarge

Loads properly and improperly mounted to PZT actuators using a variety of interfacing methods. 


The image at left presents incorrect (A, far-left) and correct (B, near-left) methods for using a piezoelectric stack to actuate a lever arm. The correct method uses a hemispherical end plate so that, regardless of the angle of the lever arm, the force exerted is always directed along the translational axis of the actuator. The incorrect interfacing of the stack and the lever arm, shown at far-left, endangers the stack by applying the full force of the load to one edge of the stack. This uneven loading causes dangerous stresses in the actuator, including a bending moment around the base.

The image at right shows one incorrect (near-right, A) and three correct approaches for interfacing a flat-bottomed, off-axis load with a piezoelectric stack. Approaches A and B are similar to the incorrect and correct approaches, respectively, shown in the image at left. Correct approach C shows a conical end cup, such as the PKFCUP, acting as an interface. The flat surface is affixed to the mating surface of the load, and the concave surface fits over the hemispherical dome of the end plate. In the case of correct approach D, a flexure mount acts as an interface between the off-axis flat mounting surface of the load and the flat mounting plate of the actuator. The flexure mount ensures that the load is both uniformly distributed over the surface plate of the actuator and that the loading force is directed along the translational axis of the actuator.

Operating Under High-Frequency Dynamic Conditions
It may be necessary to implement an external temperature-control system to cool the device when it is operated at high frequencies. The maximum operating temperature of these devices is 130 °C (266 °F), and high-frequency operation causes the internal temperature of the piezoelectric device to rise. The dependence of the device temperature on the drive voltage frequency for each product can be accessed by clicking the Info icons, info icon, below. The temperature of the device should not be allowed to exceed its specified maximum operating temperature.

Estimating the Resonant Frequency for a Given Applied Load
A parameter of significance to many applications is the rate at which the piezoelectric actuator changes its length. This dimensional rate of change depends on a number of factors, including the actuator's resonant frequency, the absolute maximum bandwidth of the driver, the maximum current the piezoelectric device can produce, the capacitance of the piezoelectric stack, and the amplitude of the driving signal. The length of the voltage-induced extension is a function of the amplitude of the applied voltage driving the actuator and the length of the piezoelectric stack. The higher the capacitance, the slower the dimensional change of the actuator. 

Quick changes in the applied voltage result in fast dimensional changes to the piezoelectric stack. The magnitude of the applied voltage determines the nominal extension of the stack. Assuming the driving voltage signal resembles a step function, the minimum time, Tmin, required for the length of the actuator to transition between its initial and final values is approximately 1/3 the period of resonant frequency. If there is no load applied to the piezoelectric stack, its resonant frequency is ƒo and its minimum response time is:


After reaching this nominal extension, there will follow a damped oscillation in the length of the actuator around this position. Controls can be implemented to mitigate this oscillation, but doing so may slow the response of the actuator.

Applying a load to the actuator will reduce the resonant frequency of the piezoelectric stack. Given the unloaded resonant frequency of the actuator, the mass of the stack, m, and the mass of the load, M, the loaded resonant frequency (ƒo') may be estimated: 


Estimating Device Lifetime for DC Drive Voltage Conditions
The lifetime of a piezoelectric device is a function of the operating temperature, applied voltage, and relative humidity conditions. Lifetimes are reduced as a consequence of humidity-driven electrolytic reactions, which occur at the electrodes of the piezoelectric devices when a DC voltage is applied. These reactions both generate hydrogen and result in metal dendrites growing from the cathode towards the anode. The hydrogen liberated by the electrolytic reaction chemically reacts with and degrades the piezoelectric material. Dendrites that grow to electrically connect the cathode and anode result in increasing levels of leakage current. Failed piezoelectric devices are defined as those that exhibit leakage current levels above an established threshold.

A ceramic moisture-barrier layer that insulates Thorlabs' piezoelectric devices on four sides is effective in minimizing the effects of humidity on device lifetime. As there is interest in estimating the lifetime of piezoelectric devices, Thorlabs conducted environmental testing on our ceramic-insulated, low-voltage, piezoelectric actuators. The resulting data were used to create a simple model that estimates the mean time to failure (MTTF), in hours, when the operating conditions of humidity, temperature, and applied voltage are known. The estimated MTTF is calculated by multiplying together three factors that correspond, respectively, to the operational temperature, relative humidity, and fractional voltage of the device. The fractional voltage is calculated by dividing the operational voltage by the maximum specified drive voltage for the device. The factors for each parameter can be read from the following plots, or they may be calculated by downloading the plotted data values and interpolating as appropriate.

In the following trio of plots, the solid-line segment of each curve represents the range of conditions over which Thorlabs performed testing. These are the conditions observed to be of most relevance to our customers. The dotted-line extensions to the solid-line segments represent extrapolated data and represent a wider range of conditions that may be encountered while operating the devices.

Engraved Back of OAP
Click to Enlarge

For an Excel file containing these fT vs. temperature data, please click here.
Calculation of MTTF to Estimate Lifetimes: MTTF = fV * fT * fH
Given the relative humidity conditions, device temperature, and DC operational voltage, the device lifetime can be estimated. It is the product of voltage, temperature, and humidity factors, which can be determined using relationships plotted at right, lower-right, and below.

As an example, when a device of type PK2FSF1 is operated with a voltage of 60 V, at a temperature of 30 °C, and in an environment with 75% relative humidity:
  • From the graph below, the voltage factor is 427 (The maximum rated voltage, Vmax, of the PK2FSF1 is 75 V, giving V/Vmax = 60 V / 75 V = 0.80) 
  • From the graph at right, the temperature factor is 83
  • From the graph at lower-right, the humidity factor is 2.8

Then MTTF = 472 * 83 * 2.8 = 99234.8 hours, which is greater than 11 years.

Note that relationships graphed on this page apply only to Thorlabs' ceramic-insulated, low-voltage, piezoelectric stack actuators.


Engraved Back of OAP
Click to Enlarge

For an Excel file containing these fH vs. relative humidity data, please click here.
Engraved Back of OAP
Click to Enlarge

For an Excel file containing these fV vs. V/Vmax data, please click here.

The data used to generate these temperature, voltage, and humidity factor plots resulted from the analysis of measurements obtained from testing devices under six different operational conditions. Different dedicated sets of ten devices were tested under each condition, with each condition representing a different combination of operational voltage, device temperature, and relative humidity. After devices exhibit leakage current levels above a threshold of 100 nA, they are registered as having failed. The individual contributions of temperature, humidity, and voltage to the lifetime are determined by assuming:

  • MTTF = fV(V) * fT(T) * fH(H)
  • A power law dependence for the voltage: fV(V) = A1Vb1
  • An exponential relationship for the relative humidity: fH(T) = A2ecH
  • An Arrhenius relationship for the temperature: fT(H) = A3eb2/T

where A1, A2, A3, b1, b2, and c are constants determined through analysis of the measurement data, V is the DC operational voltage, T is the device temperature, and H is the relative humidity. Because the MTTF has a different mathematical relationship with each factor, the dependence of the MTTF on each factor alone may be determined. These are the data plotted above. The regions of the above curves marked by the blue shading are derived from experimental data. The dotted regions of the curves are extrapolated.

Lifetime testing of these devices continues, and additional data will be published here as they become available.


Posted Comments:
Julien Renard  (posted 2019-11-13 15:12:34.283)
Hello, we are using the PK4GA3P2 stacks in a practical with students at the university. They use the stack to move the mirror of an interferometer and their goal is to measure the stacks characteristics. In order to extract the piezoelectric coefficient of individual layers we would need to know the total number of ceramic layers. Is this an information you could provide? This would be highly appreciated. Regards
user  (posted 2019-05-10 12:15:38.45)
Hello,I was wondering if the piezoelectric stack produces electric power when force is applied to it?
nbayconich  (posted 2019-05-13 01:32:32.0)
Thank you for contacting Thorlabs. Yes a piezo can be used to generate and electric field when a force is applied to the the device. The strength of the electric field generated by the actuator will be dependent on the piezo's d33 charge constant and the stress applied to the actuator. I will reach out to you directly to discuss your application.
tfrisch  (posted 2016-08-25 09:06:25.563)
Hello Felix, thank you for contacting Thorlabs. We can offer these, but there will be a greater risk of short circuit. I have emailed you directly about your application. -Tyler at Thorlabs USA
felix.jaeckel  (posted 2016-08-05 08:49:41.103)
Hi! Is it possible to get PK4FA2P2 without any ceramic endplates? Thanks! Felix

75 V Piezoelectric Stacks

Piezo Stacks with End Hemisphere and Flat End Plate

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere
Diametere
PK2JA2P1 info 8.0 µm 3.0 mm × 3.0 mm × 10.0 mm 140 kHz 1.00 µF 360 N (81 lbs) ~3.0 mm
PK2FMP1 info 11.2 µm 5.0 mm × 5.0 mm × 12.6 mm 115 kHz 4.2 µF 1000 N (225 lbs) ~5.0 mm
PK2JQP1 info 18.0 µm 3.0 mm × 3.0 mm × 20.0 mm 65 kHz 2.25 µF 360 N (81 lbs) ~3.0 mm
PK2FQP1 info 19.6 µm 5.0 mm × 5.0 mm × 20.1 mm 65 kHz 7.3 µF 1000 N (225 lbs) ~5.0 mm
PK2FSP1 info 25.2 µm 5.0 mm × 5.0 mm × 25.1 mm 55 kHz 9.4 µF 1000 N (225 lbs) ~5.0 mm
PK2JUP1 info 30.0 µm 3.0 mm × 3.0 mm × 32.2 mm 40 kHz 3.75 µF 360 N (81 lbs) ~3.0 mm
PK2FVP1 info 44.8 µm 5.0 mm × 5.0 mm × 41.9 mm 30 kHz 16.5 µF 1000 N (225 lbs) ~5.0 mm

Piezo Stacks with Two Flat End Plates

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere
Diametere
PK2JA2P2 info 8.0 µm 3.0 mm × 3.0 mm × 9.0 mm 140 kHz 1.00 µF 360 N (81 lbs) N/A
PK2FMP2 info 11.2 µm 5.0 mm × 5.0 mm × 10.5 mm 115 kHz 4.2 µF 1000 N (225 lbs)
PK2JQP2 info 18.0 µm 3.0 mm × 3.0 mm × 18.8 mm 65 kHz 2.25 µF 360 N (81 lbs)
PK2FQP2 info 19.6 µm 5.0 mm × 5.0 mm × 18.0 mm 65 kHz 7.3 µF 1000 N (225 lbs)
PK2FSP2 info 25.2 µm 5.0 mm × 5.0 mm × 23.0 mm 55 kHz 9.4 µF 1000 N (225 lbs)
PK2JUP2 info 30.0 µm 3.0 mm × 3.0 mm × 31.0 mm 40 kHz 3.75 µF 360 N (81 lbs)
PK2FVP2 info 44.8 µm 5.0 mm × 5.0 mm × 39.8 mm 30 kHz 16.5 µF 1000 N (225 lbs)
  • We recommend using the MDT69xB or KPZ101 Open-Loop Controllers with these piezos. Our MPZ601  (≤75 V) or BPC30x Closed-Loop Controllers are also compatible. However, the actuators sold on this page do not contain a strain gauge and therefore will not provide positional feedback. If closed-loop feedback is needed, please consider our PK4FYC2 or PZS001 actuators.
  • Stack dimensions exclude the electrodes, Kapton® tape, and wire connection area.
  • Without Load
  • At 75 V
  • This diameter is for the end hemisphere and given for compatibility information for use with the end cups available below.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PK2JA2P1 Support Documentation
PK2JA2P1Discrete Piezo Stack, 75 V, 8.0 µm Displacement, 3.0 mm × 3.0 mm × 10.0 mm, End Hemisphere and Flat End Plate
$71.96
Volume Pricing
Today
PK2FMP1 Support Documentation
PK2FMP1Customer Inspired! Discrete Piezo Stack, 75 V, 11.2 µm Displacement, 5.0 mm x 5.0 mm x 12.6 mm, End Hemisphere and Flat End Plate
$97.39
Volume Pricing
Today
PK2JQP1 Support Documentation
PK2JQP1Discrete Piezo Stack, 75 V, 18.0 µm Displacement, 3.0 mm x 3.0 mm x 20.0 mm, End Hemisphere and Flat End Plate
$138.51
Volume Pricing
Today
PK2FQP1 Support Documentation
PK2FQP1Customer Inspired! Discrete Piezo Stack, 75 V, 19.6 µm Displacement, 5.0 mm x 5.0 mm x 20.1 mm, End Hemisphere and Flat End Plate
$150.41
Volume Pricing
Today
PK2FSP1 Support Documentation
PK2FSP1Customer Inspired! Discrete Piezo Stack, 75 V, 25.2 µm Displacement, 5.0 mm x 5.0 mm, 25.1 mm, End Hemisphere and Flat End Plate
$181.80
Volume Pricing
Today
PK2JUP1 Support Documentation
PK2JUP1Discrete Piezo Stack, 75 V, 30.0 µm Displacement, 3.0 mm x 3.0 mm x 32.2 mm, End Hemisphere and Flat End Plate
$220.75
Volume Pricing
Today
PK2FVP1 Support Documentation
PK2FVP1Customer Inspired! Discrete Piezo Stack, 75 V, 44.8 µm Displacement, 5.0 mm x 5.0 mm x 41.9 mm, End Hemisphere and Flat End Plate
$296.50
Volume Pricing
Today
PK2JA2P2 Support Documentation
PK2JA2P2Discrete Piezo Stack, 75 V, 8.0 µm Displacement, 3.0 mm x 3.0 mm x 9.0 mm, Two Flat End Plates
$71.96
Volume Pricing
Today
PK2FMP2 Support Documentation
PK2FMP2Customer Inspired! Discrete Piezo Stack, 75 V, 11.2 µm Displacement, 5.0 mm x 5.0 mm x 10.5 mm, Two Flat End Plates
$64.12
Volume Pricing
Today
PK2JQP2 Support Documentation
PK2JQP2Discrete Piezo Stack, 75 V, 18.0 µm Displacement, 3.0 mm x 3.0 mm x 18.8 mm, Two Flat End Plates
$110.37
Volume Pricing
Today
PK2FQP2 Support Documentation
PK2FQP2Customer Inspired! Discrete Piezo Stack, 75 V, 19.6 µm Displacement, 5.0 mm x 5.0 mm x 18.0 mm, Two Flat End Plates
$99.56
Volume Pricing
5-8 Days
PK2FSP2 Support Documentation
PK2FSP2Customer Inspired! Discrete Piezo Stack, 75 V, 25.2 µm Displacement, 5.0 mm x 5.0 mm x 23.0 mm, Two Flat End Plates
$124.44
Volume Pricing
Today
PK2JUP2 Support Documentation
PK2JUP2Discrete Piezo Stack, 75 V, 30.0 µm Displacement, 3.0 mm x 3.0 mm x 31.0 mm, Two Flat End Plates
$175.31
Volume Pricing
Today
PK2FVP2 Support Documentation
PK2FVP2Customer Inspired! Discrete Piezo Stack, 75 V, 44.8 µm Displacement, 5.0 mm x 5.0 mm x 39.8 mm, Two Flat End Plates
$216.42
Volume Pricing
Today

100 V Piezoelectric Stacks

Piezo Stacks with End Hemisphere and Flat End Plate

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere Diametere
PK3JMP1f info 8.5 µm 3.0 mm × 3.0 mm × 12.0 mm 115 kHz 420 nF 360 N (81 lbs) ~3.0 mm
PK3CMP1 info 9.5 µm 2.0 mm × 2.0 mm × 11.5 mm 115 kHz 240 nF 160 N (36 lbs) ~2.0 mm
PK3JMAP1 info 10.5 µm 3.0 mm × 3.0 mm × 12.0 mm 115 kHz 620 nF 360 N (81 lbs) ~3.0 mm
PK3JRP1f info 17.0 µm 3.0 mm × 3.0 mm × 22.1 mm 60 kHz 850 nF 360 N (81 lbs) ~3.0 mm
PK3JRAP1 info 21.0 µm 3.0 mm × 3.0 mm × 22.1 mm 60 kHz 1250 nF 360 N (81 lbs) ~3.0 mm
PK3JUP1f info 25.5 µm 3.0 mm × 3.0 mm × 32.2 mm 40 kHz 1275 nF 360 N (81 lbs) ~3.0 mm
PK3JUAP1 info 31.5 µm 3.0 mm × 3.0 mm × 32.2 mm 40 kHz 1850 nF 360 N (81 lbs) ~3.0 mm

Piezo Stacks with Two Flat End Plates

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere Diametere
PK3JMP2f info 8.5 µm 3.0 mm × 3.0 mm × 10.9 mm 115 kHz 420 nF 360 N (81 lbs) N/A
PK3CMP2 info 9.5 µm 2.0 mm × 2.0 mm × 10.9 mm 115 kHz 240 nF 160 N (36 lbs)
PK3JMAP2 info 10.5 µm 3.0 mm × 3.0 mm × 10.9 mm 115 kHz 620 nF 360 N (81 lbs)
PK3JRP2f info 17.0 µm 3.0 mm × 3.0 mm × 20.9 mm 60 kHz 850 nF 360 N (81 lbs)
PK3JRAP2 info 21.0 µm 3.0 mm × 3.0 mm × 20.9 mm 60 kHz 1250 nF 360 N (81 lbs)
PK3JUP2f info 25.5 µm 3.0 mm × 3.0 mm × 31.0 mm 40 kHz 1275 nF 360 N (81 lbs)
PK3JUAP2 info 31.5 µm 3.0 mm × 3.0 mm × 31.0 mm 40 kHz 1850 nF 360 N (81 lbs)
  • We recommend using the MDT69xB or KPZ101 Open-Loop Controllers with these piezos. Our MPZ601 (≤75 V) or BPC30x Closed-Loop Controllers are also compatible. However, the actuators sold on this page do not contain a strain gauge and therefore will not provide positional feedback. If closed-loop feedback is needed, please consider our PK4FYC2 or PZS001 actuators.
  • Stack dimensions exclude the electrodes, Kapton® tape, and wire connection area.
  • Without Load
  • At 100 V
  • This diameter is for the end hemisphere and given for compatibility information for use with the end cups available below.
  • These piezos have a lower capacitance requirement than piezos of the same dimensions while maintaining a 3.0 mm x 3.0 mm cross-section profile.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PK3JMP1 Support Documentation
PK3JMP1Discrete Piezo Stack, 100 V, 8.5 µm Displacement, 3.0 mm x 3.0 mm x 12.0 mm, End Hemisphere and Flat End Plate
$84.14
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PK3CMP1 Support Documentation
PK3CMP1Discrete Piezo Stack, 100 V, 9.5 µm Displacement, 2.0 mm x 2.0 mm x 11.5 mm, End Hemisphere and Flat End Plate
$59.79
Volume Pricing
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PK3JMAP1 Support Documentation
PK3JMAP1Customer Inspired! Discrete Piezo Stack, 100 V, 10.5 µm Displacement, 3.0 mm x 3.0 mm x 12.0 mm, End Hemisphere and Flat End Plate
$59.79
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PK3JRP1 Support Documentation
PK3JRP1Discrete Piezo Stack, 100 V, 17.0 µm Displacement, 3.0 mm x 3.0 mm x 22.1 mm, End Hemisphere and Flat End Plate
$163.40
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PK3JRAP1 Support Documentation
PK3JRAP1Customer Inspired! Discrete Piezo Stack, 100 V, 21.0 µm Displacement, 3.0 mm x 3.0 mm x 22.1 mm, End Hemisphere and Flat End Plate
$120.12
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PK3JUP1 Support Documentation
PK3JUP1Discrete Piezo Stack, 100 V, 25.5 µm Displacement, 3.0 mm x 3.0 mm x 32.2 mm, End Hemisphere and Flat End Plate
$242.39
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PK3JUAP1 Support Documentation
PK3JUAP1Customer Inspired! Discrete Piezo Stack, 100 V, 31.5 µm Displacement, 3.0 mm x 3.0 mm x 32.2 mm, End Hemisphere and Flat End Plate
$179.63
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PK3JMP2 Support Documentation
PK3JMP2Discrete Piezo Stack, 100 V, 8.5 µm Displacement, 3.0 mm x 3.0 mm x 10.9 mm, Two Flat End Plates
$84.14
Volume Pricing
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PK3CMP2 Support Documentation
PK3CMP2Discrete Piezo Stack, 100 V, 9.5 µm Displacement, 2.0 mm x 2.0 mm x 10.9 mm, Two Flat End Plates
$59.79
Volume Pricing
Today
PK3JMAP2 Support Documentation
PK3JMAP2Customer Inspired! Discrete Piezo Stack, 100 V, 10.5 µm Displacement, 3.0 mm x 3.0 mm x 10.9 mm, Two Flat End Plates
$59.79
Volume Pricing
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PK3JRP2 Support Documentation
PK3JRP2Discrete Piezo Stack, 100 V, 17.0 µm Displacement, 3.0 mm x 3.0 mm x 20.9 mm, Two Flat End Plates
$127.69
Volume Pricing
Today
PK3JRAP2 Support Documentation
PK3JRAP2Customer Inspired! Discrete Piezo Stack, 100 V, 21.0 µm Displacement, 3.0 mm x 3.0 mm x 20.9 mm, Two Flat End Plates
$120.12
Volume Pricing
Today
PK3JUP2 Support Documentation
PK3JUP2Discrete Piezo Stack, 100 V, 25.5 µm Displacement, 3.0 mm x 3.0 mm x 31.0 mm, Two Flat End Plates
$186.12
Volume Pricing
Today
PK3JUAP2 Support Documentation
PK3JUAP2Customer Inspired! Discrete Piezo Stack, 100 V, 31.5 µm Displacement, 3.0 mm x 3.0 mm x 31.0 mm, Two Flat End Plates
$179.63
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150 V Piezoelectric Stacks

Piezo Stacks with End Hemisphere and Flat End Plate

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere Diametere
PK4DLP1 info 5.2 µm 2.5 mm × 2.5 mm × 6.1 mm 250 kHz 100 nF 250 N (56 lbs) ~2.5 mm
PK4GA2P1 info 8.5 µm 7.0 mm × 7.0 mm × 12.0 mm 130 kHz 1400 nF 1960 N (441 lbs) ~7.0 mm
PK4JMP1 info 8.8 µm 3.0 mm × 3.0 mm × 10.0 mm 140 kHz 250 nF 360 N (81 lbs) ~3.0 mm
PK4DMP1 info 9.2 µm 2.5 mm × 2.5 mm × 11.0 mm 125 kHz 175 nF 250 N (56 lbs) ~2.5 mm
PK4CMP1 info 9.5 µm 2.0 mm × 2.0 mm × 11.5 mm 115 kHz 110 nF 160 N (36 lbs) ~2.0 mm
PK4FA2P1 info 9.5 µm 5.0 mm × 5.0 mm × 11.0 mm 140 kHz 750 nF 1000 N (225 lbs) ~5.0 mm
PK4GQP1 info 19.0 µm 7.0 mm × 7.0 mm × 21.1 mm 70 kHz 3.0 µF 1960 N (441 lbs) ~7.0 mm
PK4JQP1 info 19.8 µm 3.0 mm × 3.0 mm × 20.0 mm 65 kHz 550 nF 360 N (81 lbs) ~3.0 mm
PK4FQP1 info 20.0 µm 5.0 mm × 5.0 mm × 20.1 mm 70 kHz 1600 nF 1000 N (225 lbs) ~5.0 mm
PK4HQP1 info 20.0 µm 10.0 mm × 10.0 mm × 22.6 mm 65 kHz 6.0 µF 4000 N (900 lbs) ~10.0 mm
PK4JUP1 info 33.0 µm 3.0 mm × 3.0 mm × 32.2 mm 40 kHz 930 nF 360 N (81 lbs) ~3.0 mm
PK4GYP1 info 38.0 µm 7.0 mm × 7.0 mm × 39.1 mm 35 kHz 6.0 µF 1960 N (441 lbs) ~7.0 mm
PK4HYP1 info 40.0 µm 10.0 mm × 10.0 mm × 40.7 mm 34 kHz 13.0 µF 4000 N (900 lbs) ~10.0 mm
PK4FYP1 info 41.0 µm 5.0 mm × 5.0 mm × 38.1 mm 34 kHz 3500 nF 1000 N (225 lbs) ~5.0 mm
PK4GA3P1 info 50.0 µm 7.0 mm × 7.0 mm × 48.1 mm 27 kHz 9.0 µF 1960 N (441 lbs) ~7.0 mm
PK4HA3P1 info 50.0 µm 10.0 mm × 10.0 mm × 49.7 mm 27 kHz 15.0 µF 4000 N (900 lbs) ~10.0 mm
PK4FXP1 info 57.5 µm 5.0 mm × 5.0 mm × 52.2 mm 25 kHz 4800 nF 1000 N (225 lbs) ~5.0 mm
PK4GA7P1 info 100.0 µm 7.0 mm × 7.0 mm × 93.5 mm 14 kHz 16.0 µF 1960 N (441 lbs) ~7.0 mm

Piezo Stacks with Two Flat End Plates

Item #a Info Displacement
(Free Stroke)
Stack Dimensionsb Resonant
Frequencyc
Capacitance Blocking
Forced
Hemisphere Diametere
PK4DLP2 info 5.2 µm 2.5 mm × 2.5 mm × 5.0 mm 250 kHz 100 nF 250 N (56 lbs) N/A
PK4GA2P2 info 8.5 µm 7.0 mm × 7.0 mm × 9.0 mm 130 kHz 1400 nF 1960 N (441 lbs)
PK4JMP2 info 8.8 µm 3.0 mm × 3.0 mm × 9.0 mm 140 kHz 250 nF 360 N (81 lbs)
PK4DMP2 info 9.2 µm 2.5 mm × 2.5mm × 10.0 mm 125 kHz 175 nF 250 N (56 lbs)
PK4CMP2 info 9.5 µm 2.0 mm × 2.0 mm × 10.9 mm 115 kHz 110 nF 160 N (36 lbs)
PK4FA2P2 info 9.5 µm 5.0 mm × 5.0 mm × 9.0 mm 140 kHz 750 nF 1000 N (225 lbs)
PK4GQP2 info 19.0 µm 7.0 mm × 7.0 mm × 18.0 mm 70 kHz 3.0 µF 1960 N (441 lbs)
PK4JQP2 info 19.8 µm 3.0 mm × 3.0mm × 18.8 mm 65 kHz 550 nF 360 N (81 lbs)
PK4FQP2 info 20.0 µm 5.0 mm × 5.0 mm × 18.0 mm 70 kHz 1600 nF 1000 N (225 lbs)
PK4HQP2 info 20.0 µm 10.0 mm × 10.0 mm × 18.0 mm 65 kHz 6.0 µF 4000 N (900 lbs)
PK4JUP2 info 33.0 µm 3.0 mm × 3.0 mm × 31.0 mm 40 kHz 930 nF 360 N (81 lbs)
PK4GYP2 info 38.0 µm 7.0 mm × 7.0 mm × 36.0 mm 35 kHz 6.0 µF 1960 N (441 lbs)
PK4HYP2 info 40.0 µm 10.0 mm × 10.0 mm × 36.0 mm 34 kHz 13.0 µF 4000 N (900 lbs)
PK4FYP2 info 41.0 µm 5.0 mm × 5.0 mm × 36.0 mm 34 kHz 3500 nF 1000 N (225 lbs)
PK4GA3P2 info 50.0 µm 7.0 mm × 7.0 mm × 45.0 mm 27 kHz 9.0 µF 1960 N (441 lbs)
PK4HA3P2 info 50.0 µm 10.0 mm × 10.0 mm × 45.0 mm 15 kHz 15.0 µF 4000 N (900 lbs)
PK4FXP2 info 57.5 µm 5.0 mm × 5.0 mm × 50.0 mm 25 kHz 4800 nF 1000 N (225 lbs)
PK4GA7P2 info 100.0 µm 7.0 mm × 7.0 mm × 90.0 mm 14 kHz 16.0 µF 1960 N (441 lbs)
  • We recommend using the MDT69xB or KPZ101 Open-Loop Controllers with these piezos. Our MPZ601 (≤75 V) or BPC30x Closed-Loop Controllers are also compatible. However, the actuators sold on this page do not contain a strain gauge and therefore will not provide positional feedback. If closed-loop feedback is needed, please consider our PK4FYC2 or PZS001 actuators.
  • Stack dimensions exclude the electrodes, Kapton® tape, and wire connection area.
  • Without Load
  • At 150 V
  • This diameter is for the end hemisphere and given for compatibility information for use with the end cups available below.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PK4DLP1 Support Documentation
PK4DLP1Discrete Piezo Stack, 150 V, 5.2 µm Displacement, 2.5 mm x 2.5 mm x 6.1 mm, End Hemisphere and Flat End Plate
$33.28
Volume Pricing
Today
PK4GA2P1 Support Documentation
PK4GA2P1Discrete Piezo Stack, 150 V, 8.5 µm Displacement, 7.0 mm x 7.0 mm x 12.0 mm, End Hemisphere and Flat End Plate
$100.91
Volume Pricing
Today
PK4JMP1 Support Documentation
PK4JMP1Discrete Piezo Stack, 150 V, 8.8 µm Displacement, 3.0 mm x 3.0 mm x 10.0 mm, End Hemisphere and Flat End Plate
$71.96
Volume Pricing
Today
PK4DMP1 Support Documentation
PK4DMP1Customer Inspired! Discrete Piezo Stack, 150 V, 9.2 µm Displacement, 2.5 mm x 2.5 mm x 11.0 mm, End Hemisphere and Flat End Plate
$59.79
Volume Pricing
Today
PK4CMP1 Support Documentation
PK4CMP1Discrete Piezo Stack, 150 V, 9.5 µm Displacement, 2.0 mm x 2.0 mm x 11.5 mm, End Hemisphere and Flat End Plate
$59.79
Volume Pricing
Today
PK4FA2P1 Support Documentation
PK4FA2P1Discrete Piezo Stack, 150 V, 9.5 µm Displacement, 5.0 mm x 5.0 mm x 11.0 mm, End Hemisphere and Flat End Plate
$51.94
Volume Pricing
Today
PK4GQP1 Support Documentation
PK4GQP1Discrete Piezo Stack, 150 V, 19.0 µm Displacement, 7.0 mm x 7.0 mm x 21.1 mm, End Hemisphere and Flat End Plate
$124.44
Volume Pricing
Today
PK4JQP1 Support Documentation
PK4JQP1Discrete Piezo Stack, 150 V, 19.8 µm Displacement, 3.0 mm x 3.0 mm x 20.0 mm, End Hemisphere and Flat End Plate
$138.51
Volume Pricing
Today
PK4FQP1 Support Documentation
PK4FQP1Discrete Piezo Stack, 150 V, 20.0 µm Displacement, 5.0 mm x 5.0 mm x 20.1 mm, End Hemisphere and Flat End Plate
$92.79
Volume Pricing
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PK4HQP1 Support Documentation
PK4HQP1Discrete Piezo Stack, 150 V, 20.0 µm Displacement, 10.0 mm x 10.0 mm x 22.6 mm, End Hemisphere and Flat End Plate
$190.46
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PK4JUP1 Support Documentation
PK4JUP1Discrete Piezo Stack, 150 V, 33.0 µm Displacement, 3.0 mm x 3.0 mm x 32.2 mm, End Hemisphere and Flat End Plate
$220.75
Volume Pricing
Today
PK4GYP1 Support Documentation
PK4GYP1Discrete Piezo Stack, 150 V, 38.0 µm Displacement, 7.0 mm x 7.0 mm x 39.1 mm, End Hemisphere and Flat End Plate
$238.06
Volume Pricing
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PK4HYP1 Support Documentation
PK4HYP1Discrete Piezo Stack, 150 V, 40.0 µm Displacement, 10.0 mm x 10.0 mm x 40.7 mm, End Hemisphere and Flat End Plate
$374.42
Volume Pricing
Today
PK4FYP1 Support Documentation
PK4FYP1Discrete Piezo Stack, 150 V, 41.0 µm Displacement, 5.0 mm x 5.0 mm x 38.1 mm, End Hemisphere and Flat End Plate
$175.31
Volume Pricing
Today
PK4GA3P1 Support Documentation
PK4GA3P1Discrete Piezo Stack, 150 V, 50.0 µm Displacement, 7.0 mm x 7.0 mm x 48.1 mm, End Hemisphere and Flat End Plate
$295.41
Volume Pricing
Today
PK4HA3P1 Support Documentation
PK4HA3P1Discrete Piezo Stack, 150 V, 50.0 µm Displacement, 10.0 mm x 10.0 mm x 49.7 mm, End Hemisphere and Flat End Plate
$466.39
Volume Pricing
Today
PK4FXP1 Support Documentation
PK4FXP1Discrete Piezo Stack, 150 V, 57.5 µm Displacement, 5.0 mm x 5.0 mm x 52.2 mm, End Hemisphere and Flat End Plate
$269.45
Volume Pricing
Today
PK4GA7P1 Support Documentation
PK4GA7P1Discrete Piezo Stack, 150 V, 100.0 µm Displacement, 7.0 mm x 7.0 mm x 93.5 mm, End Hemisphere and Flat End Plate
$581.10
Volume Pricing
Today
PK4DLP2 Support Documentation
PK4DLP2Discrete Piezo Stack, 150 V, 5.2 µm Displacement, 2.5 mm x 2.5 mm x 5.0 mm, Two Flat End Plates
$33.28
Volume Pricing
Today
PK4GA2P2 Support Documentation
PK4GA2P2Discrete Piezo Stack, 150 V, 8.5 µm Displacement, 7.0 mm x 7.0 mm x 9.0 mm, Two Flat End Plates
$77.37
Volume Pricing
Today
PK4JMP2 Support Documentation
PK4JMP2Discrete Piezo Stack, 150 V, 8.8 µm Displacement, 3.0 mm x 3.0 mm x 9.0 mm, Two Flat End Plates
$71.96
Volume Pricing
Today
PK4DMP2 Support Documentation
PK4DMP2Customer Inspired! Discrete Piezo Stack, 150 V, 9.2 µm Displacement, 2.5 mm x 2.5 mm x 10.0 mm, Two Flat End Plates
$59.79
Volume Pricing
Today
PK4CMP2 Support Documentation
PK4CMP2Discrete Piezo Stack, 150 V, 9.5 µm Displacement, 2.0 mm x 2.0 mm x 10.9 mm, Two Flat End Plates
$59.79
Volume Pricing
Today
PK4FA2P2 Support Documentation
PK4FA2P2Discrete Piezo Stack, 150 V, 9.5 µm Displacement, 5.0 mm x 5.0 mm x 9.0 mm, Two Flat End Plates
$51.94
Volume Pricing
Today
PK4GQP2 Support Documentation
PK4GQP2Discrete Piezo Stack, 150 V, 19.0 µm Displacement, 7.0 mm x 7.0 mm x 18.0 mm, Two Flat End Plates
$124.44
Volume Pricing
Today
PK4JQP2 Support Documentation
PK4JQP2Discrete Piezo Stack, 150 V, 19.8 µm Displacement, 3.0 mm x 3.0 mm x 18.8 mm, Two Flat End Plates
$110.37
Volume Pricing
Today
PK4FQP2 Support Documentation
PK4FQP2Discrete Piezo Stack, 150 V, 20.0 µm Displacement, 5.0 mm x 5.0 mm x 18.0 mm, Two Flat End Plates
$92.79
Volume Pricing
Today
PK4HQP2 Support Documentation
PK4HQP2Discrete Piezo Stack, 150 V, 20.0 µm Displacement, 10.0 mm x 10.0 mm x 18.0 mm, Two Flat End Plates
$190.46
Volume Pricing
Today
PK4JUP2 Support Documentation
PK4JUP2Discrete Piezo Stack, 150 V, 33.0 µm Displacement, 3.0 mm x 3.0 mm x 31.0 mm, Two Flat End Plates
$175.31
Volume Pricing
Today
PK4GYP2 Support Documentation
PK4GYP2Discrete Piezo Stack, 150 V, 38.0 µm Displacement, 7.0 mm x 7.0 mm x 36.0 mm, Two Flat End Plates
$238.06
Volume Pricing
Today
PK4HYP2 Support Documentation
PK4HYP2Discrete Piezo Stack, 150 V, 40.0 µm Displacement, 10.0 mm x 10.0 mm x 36.0 mm, Two Flat End Plates
$374.42
Volume Pricing
Today
PK4FYP2 Support Documentation
PK4FYP2Discrete Piezo Stack, 150 V, 41.0 µm Displacement, 5.0 mm x 5.0 mm x 36.0 mm, Two Flat End Plates
$175.31
Volume Pricing
5-8 Days
PK4GA3P2 Support Documentation
PK4GA3P2Discrete Piezo Stack, 150 V, 50.0 µm Displacement, 7.0 mm x 7.0 mm x 45.0 mm, Two Flat End Plates
$295.41
Volume Pricing
Today
PK4HA3P2 Support Documentation
PK4HA3P2Discrete Piezo Stack, 150 V, 50.0 µm Displacement, 10.0 mm x 10.0 mm x 45.0 mm, Two Flat End Plates
$466.39
Volume Pricing
Today
PK4FXP2 Support Documentation
PK4FXP2Discrete Piezo Stack, 150 V, 57.5 µm Displacement, 5.0 mm x 5.0 mm x 50.0 mm, Two Flat End Plates
$227.25
Volume Pricing
Today
PK4GA7P2 Support Documentation
PK4GA7P2Discrete Piezo Stack, 150 V, 100.0 µm Displacement, 7.0 mm x 7.0 mm x 90.0 mm, Two Flat End Plates
$581.10
Volume Pricing
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End Cups

  • Compatible with Our Piezoelectric Stacks (Sold Above)
  • Conical End Cups Accept Ball Contacts:
    • From Ø1.5 mm to Ø3.0 mm (PKJCUP)
    • From Ø2.6 mm to Ø5.0 mm (PKFCUP)
    • From Ø3.6 mm to Ø7.0 mm (PKGCUP)
  • Restricts Applied Stress to the Axial Direction
  • Sold in Packs of 10

The PKJCUP, PKFCUP, and PKGCUP are 416 stainless steel conical end cups designed to be used with our PZT stacks. The conical cup can accept a ball contact, such as one of the end hemispheres available below, with a diameter from 1.5 to 3.0 mm (PKJCUP), 2.6 to 5.0 mm (PKFCUP), or 3.6 to 7.0 mm (PKGCUP). Using a ball contact with a PZT actuator ensures that the applied stress is restricted to the axial direction, limiting the probability of stress-induced failure. They can be affixed either to a flat face of a PZT stack or to the mechanical device that is being actuated. If affixing a cup to the PZT stack itself, we recommend using an epoxy that cures at a temperature lower than 80 °C (176 °F), such as 353NDPK or TS10 epoxies or Loctite® Hysol® 9340.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PKJCUP Support Documentation
PKJCUPØ3.0 mm Conical End Cup for PZT Actuators, Pack of 10
$37.61
Today
PKFCUP Support Documentation
PKFCUPCustomer Inspired! Ø5.0 mm Conical End Cup for PZT Actuators, Pack of 10
$26.51
Today
PKGCUP Support Documentation
PKGCUPØ7.0 mm Conical End Cup for PZT Actuators, Pack of 10
$48.70
Today

End Hemispheres and Flat End Plates

End Hemispheres Flat End Plates
Item # Diameter Item # Dimensions
PKCESP 2.0 mm PKCEP4 2.0 mm x 2.0 mm x 0.4 mm
PKDESP 2.5 mm PKDEP4 2.5 mm x 2.5 mm x 0.4 mm
PKJESP 3.0 mm PKJEP4 3.0 mm x 3.0 mm x 0.4 mm
PKFESP 5.0 mm PKFEP4 5.0 mm x 5.0 mm x 0.4 mm
PKGESP 7.0 mm PKGEP4 7.0 mm x 7.0 mm x 0.4 mm
PKHESP 10.0 mm PKHEP4 10.0 mm x 10.0 mm x 0.4 mm
  • Hemispheres and Flat End Plates in Five Sizes
  • Hemispheres Provide a Single Point of Contact for Actuation
  • Flat Plates Spread Force Across Piezo Face at Contact Point
  • Sold in Packs of 16 or 25

The alumina end hemispheres and flat plates used in the piezo stacks featured above are also available separately in five sizes (see the table to the right). The hemispheres can be used to create a single contact point between a PZT stack and a lever arm. Alternatively, a hemisphere can be used with a compatible conical end cup (sold above). Flat end plates are used to spread the force at the contact point over the entire end surface of a piezo stack or chip. When selecting a hemisphere or flat end plate to adhere to a piezo stack end face, it is important to match the bottom surface area of the hemisphere or plate to the cross section of the piezo stack in order to ensure that forces are spread evenly over the surface. The end hemispheres have a diameter tolerance of ±0.1 mm, and the flat end plates have a dimensional tolerance of ±0.04 mm.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
PKCESP Support Documentation
PKCESPCustomer Inspired! Ø2.0 mm End Hemisphere, Pack of 25
$34.36
Today
PKDESP Support Documentation
PKDESPCustomer Inspired! Ø2.5 mm End Hemisphere, Pack of 25
$34.36
Today
PKJESP Support Documentation
PKJESPCustomer Inspired! Ø3.0 mm End Hemisphere, Pack of 25
$34.36
Today
PKFESP Support Documentation
PKFESPCustomer Inspired! Ø5.0 mm End Hemisphere, Pack of 25
$34.36
Today
PKGESP Support Documentation
PKGESPCustomer Inspired! Ø7.0 mm End Hemisphere, Pack of 16
$30.03
Today
PKHESP Support Documentation
PKHESPCustomer Inspired! Ø10.0 mm End Hemisphere, Pack of 16
$47.88
Today
PKCEP4 Support Documentation
PKCEP4Customer Inspired! 2.0 mm x 2.0 mm x 0.4 mm Flat End Plate, Pack of 25
$9.95
Today
PKDEP4 Support Documentation
PKDEP4Customer Inspired! 2.5 mm x 2.5 mm x 0.4 mm Flat End Plate, Pack of 25
$9.95
Today
PKJEP4 Support Documentation
PKJEP4Customer Inspired! 3.0 mm x 3.0 mm x 0.4 mm Flat End Plate, Pack of 25
$9.95
Today
PKFEP4 Support Documentation
PKFEP4Customer Inspired! 5.0 mm x 5.0 mm x 0.4 mm Flat End Plate, Pack of 25
$12.24
Today
PKGEP4 Support Documentation
PKGEP4Customer Inspired! 7.0 mm x 7.0 mm x 0.4 mm Flat End Plate, Pack of 16
$11.03
5-8 Days
PKHEP4 Support Documentation
PKHEP4Customer Inspired! 10.0 mm x 10.0 mm x 0.4 mm Flat End Plate, Pack of 16
$17.75
5-8 Days
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