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Electrical Adapters


  • BNC, SMA, SMC, Banana, and Microwave Cable Adapters
  • Machined from the Highest Quality Materials

SMA Adapters

5 Choices

2.92 mm Adapters

7 Choices

SMC Adapters

2 Choices

Banana Adapters

3 Choices

2.4 mm Adapters

7 Choices

BNC Adapters

7 Choices

Related Items


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Thorlabs offers a variety of electrical adapters including five types of BNC adapters, four types of SMA adapters, two types of SMC adapters and three types of banana adapters as well as several BNC to SMC and SMA to BNC adapters. We also offer microwave cable adapters, BNC terminating brackets, and SMA DC blocking filters.

Calibrated torque wrenches are available to ensure that the proper mating torque is supplied when connecting two SMA, 2.92 mm, 2.4 mm, 1.85 mm, K, or V coaxial connectors.

Thorlabs also supplies 76-piece and 62-piece BNC and SMA electrical adapter kits.


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Posted Comments:
Poster:mjburek
Posted Date:2017-07-15 12:48:37.57
Is it possible to get this product with a 4 adapter configuration, similar to what has been recently offered for the fiber connectors (i.e. ADAFCB5)?
Poster:nbayconich
Posted Date:2017-08-08 02:08:21.0
Thank you for contacting Thorlabs. I will reach out to you directly about our custom capabilities.
Poster:mjburek
Posted Date:2017-07-14 13:48:36.533
Is it possible to supply a version of BNCB2, but with SMA straight female-to-female adapters?
Poster:tfrisch
Posted Date:2017-09-05 03:47:09.0
Thank you for contacting Thorlabs. We will reach out to you with pricing.

BNC Adapters

Item #T3283T3285T3533T3534T3788
Click Image to Enlarge T3283 T3285 T3533 T3534 T3788
Description BNC Straight Female to Female BNC T Female to Male to Female BNC Straight Male to Male BNC Elbow Male to Female BNC to Test Clips
Item #BNCB1BNCB2
Click Image to Enlarge BNCB1 BNCB2
Description BNC Bracket, Female to Termination BNC Bracket, Female to Female
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
T3283 Support Documentation
T3283BNC Adapter - Straight Adapter (F-F)
$6.95
Today
T3285 Support Documentation
T3285BNC Adapter - T Adapter (F-M-F)
$9.70
Today
T3533 Support Documentation
T3533BNC Adapter - Straight Adapter (M-M)
$13.00
Today
T3534 Support Documentation
T3534BNC Adapter - Elbow Adapter (M-F)
$15.60
Today
T3788 Support Documentation
T3788BNC Adapters - BNC To Test Clips
$12.20
Today
BNCB1 Support Documentation
BNCB1BNC Bracket, Terminating
$18.40
Today
BNCB2 Support Documentation
BNCB2BNC Bracket, Pass-Through
$19.40
Today

SMA Adapters

Thorlabs offers four types of SMA adapters and a wide-bandwidth DC blocking filter incorporated directly into an SMA feedthrough connector. The DC blocking filter is used for applications where a DC offset is problematic, and it has a frequency range of 7 kHz to 23 GHz. The insertion loss is less than 0.5 dB in the 100 kHz to 12.4 GHz range, and 0.75 dB in the 12.4 to 23 GHz range.

Item #T4285T4283T4286T4282T8535
Click Image to EnlargeT4285T4283T4286T4282T8535
DescriptionSMA Straight Female to FemaleSMA Straight Male to MaleSMA Straight Male to FemaleSMA Elbow Male to FemaleSMA DC Blocking Filter
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
T4285 Support Documentation
T4285SMA Adapter - Straight (F/F)
$23.70
Today
T4283 Support Documentation
T4283SMA Adapter - Straight (M/M)
$18.30
Today
T4286 Support Documentation
T4286Customer Inspired!Straight Male to Female SMA Adapter
$12.60
Today
T4282 Support Documentation
T4282SMA Adapter - Elbow (M/F)
$15.60
Today
T8535 Support Documentation
T8535SMA DC Blocking Filter, 7kHz to 23GHz
$99.00
Today

SMC Adapters

Thorlabs offers two types of SMC adapters: female to female, and male to male. Both allow interfaces of the same type to be connected. These high-grade, durable adapters have gold-plated brass bodies, gold-plated beryllium copper centers, and PTFE insulators. These adapters also feature a 50 Ohm impedance.

Item #T5025T5026
Click Image to EnlargeT5025T5026
DescriptionSMC Female to Female AdapterSMC Male to Male Adapter
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
T5025 Support Documentation
T5025Straight Female to Female SMC Adapter
$12.60
Today
T5026 Support Documentation
T5026Straight Male to Male SMC Adapter
$12.60
Today

BNC to Banana and BNC to Binding Post Adapters

Item #T1269T1270T1452
Click Image to EnlargeT1269T1270T1452
DescriptionBNC Female To BananaBNC Male To BananaBNC Female to Binding Post
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
T1269 Support Documentation
T1269Banana Adapter -- BNC Female To Banana Plug
$8.40
Today
T1270 Support Documentation
T1270Banana Adapter -- BNC Male To Banana Plug
$15.50
Today
T1452 Support Documentation
T1452BNC Female to Binding Post
$15.50
Today

BNC to SMC & SMA to BNC Adapters

Item #T4291T4290T4289T4288MDC40211
Click Image to EnlargeT4291T4290T4289T4288MDC40211
DescriptionSMA Female to BNC FemaleSMA Male to BNC FemaleSMA Female to BNC MaleSMA Male to BNC MaleBNC Male to SMC Male
Item #T4292
Click Image to EnlargeT4292
DescriptionBNC Female to SMC Female
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
T4291 Support Documentation
T4291SMA Female to BNC Female Adapter
$11.90
Today
T4290 Support Documentation
T4290SMA Male to BNC Female Adapter
$13.00
Today
T4289 Support Documentation
T4289SMA Female to BNC Male Adapter
$13.00
Today
T4288 Support Documentation
T4288SMA Male to BNC Male Adapter
$14.50
Today
MDC40211 Support Documentation
MDC40211BNC Male to SMC Male Adapter
$29.75
Today
T4292 Support Documentation
T4292BNC Female to SMC Female straight thru Adapter
$57.00
Today

Microwave Cable Adapters

Microwave Cable Connectors
Click for Details

This chart summarizes the maximum frequency and cross-compatibility of the microwave cable connectors used by our adapters. Please refer to the Compatibility tab of our full web presentation for microwave cables for details.

These microwave cable adapters are designed to change the gender or connector type of microwave cables and connectors. They include in-series adapters (F-F, F-M, M-F) for 2.92 mm and 2.4 mm, as well as between-series adapters for all gender combinations of 2.92 mm and 2.4 mm cables.

For detailed specifications, including interconnector compatibility, please see the full web presentation for our Microwave Cables.

Calibrated torque wrenches are available to ensure that the proper mating torque is supplied when using these adapters.

Item # TFKF TFKM TMKF TMKM
Adapter Type 2.4 mm to 2.92 mm
Click Image
to Enlarge
Description 2.4 mm Female to
2.92 mm Female
2.4 mm Female to
2.92 mm Male
2.4 mm Male to
2.92 mm Female
2.4 mm Male to
2.92 mm Male
Item # KFF KMF KMM TFF TMF TMM
Adapter Type 2.92 mm 2.4 mm
Click Image
to Enlarge
Description 2.92 mm Female to
2.92 mm Female
2.92 mm Male to
2.92 mm Female
2.92 mm Male to
2.92 mm Male
2.4 mm Female to
2.4 mm Female
2.4 mm Male to
2.4 mm Female
2.4 mm Male to
2.4 mm Male
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available / Ships
TFKF Support Documentation
TFKFMicrowave Cable Adapter, 2.4 mm Female to 2.92 mm Female
$128.00
Today
TFKM Support Documentation
TFKMMicrowave Cable Adapter, 2.4 mm Female to 2.92 mm Male
$128.00
Today
TMKF Support Documentation
TMKFMicrowave Cable Adapter, 2.4 mm Male to 2.92 mm Female
$128.00
Today
TMKM Support Documentation
TMKMMicrowave Cable Adapter, 2.4 mm Male to 2.92 mm Male
$128.00
Today
KFF Support Documentation
KFFMicrowave Cable Adapter, 2.92 mm Female to 2.92 mm Female
$76.50
Today
KMF Support Documentation
KMFMicrowave Cable Adapter, 2.92 mm Male to 2.92 mm Female
$76.50
Today
KMM Support Documentation
KMMMicrowave Cable Adapter, 2.92 mm Male to 2.92 mm Male
$76.50
Today
TFF Support Documentation
TFFMicrowave Cable Adapter, 2.4 mm Female to 2.4 mm Female
$153.00
Today
TMF Support Documentation
TMFMicrowave Cable Adapter, 2.4 mm Male to 2.4 mm Female
$153.00
Today
TMM Support Documentation
TMMMicrowave Cable Adapter, 2.4 mm Male to 2.4 mm Male
$153.00
Today
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