SMA Cables


  • SMA-to-SMA Cables
  • Premium SMA-to-SMA Microwave Cables
  • SMA-to-BNC Cables
  • Premium SMA-to-SMP Microwave Adapter Cables
  • MMCX-to-SMA Cable

CA2812

Standard SMA-to-BNC Adapter Cable

CA2912

Standard SMA-to-SMA Cable

SMM12

Premium SMA-to-SMA Microwave Cable

SMGF3

Premium SMA-to-SMP Microwave Adapter Cable

Related Items


Please Wait

All the cables sold by Thorlabs that have an SMA connector on at least one end are displayed on this page. The selection of cables below includes both standard cables and Thorlabs’ Premium Microwave Cables. The links in the table below will take you to web pages containing our other varieties of electrical cables. A preset torque wrench is available below to ensure that the proper mating torque is supplied when connecting two SMA connectors.


Posted Comments:
DAGOBERTO DE FARIA  (posted 2022-09-14 21:10:18.773)
Dear, I noticed on the THORLABS website that the Company can manufacture SMA to SMA cables as per the End User's need. I would like to know if you can manufacture LMR400 cables with SMA connectors as per the demand below? - 1 (one) cable (LMR400) of 23 meters with SMA (male) and SMA (female) at both ends. - 9 (Nine) cables (LMR400) of 5 meters, with SMA connectors (male) on both ends. Regards, Dagoberto Faria
ksosnowski  (posted 2022-09-14 01:38:18.0)
Hello Dagoberto, thanks for reaching out to Thorlabs. While we are able to offer many custom options for our SMA Fiber Optic cables, the RF Coaxial cables we supply are only at the fixed lengths available on our site, with the standard connector options. We don't have any products made with LMR-400 cable currently.
ed.price  (posted 2015-09-15 15:59:01.37)
Hi I'm unsure about the frequency range for these cables. SMA cables normally go to 18 GHz or more but the spec on the website says 3 GHz. I expect this is a typo but can you confirm that for me please. Thanks for your help
besembeson  (posted 2015-10-02 12:37:56.0)
Response from Bweh at Thorlabs USA: There are differences in the connector and cable material used, and these cover different frequency ranges. The ones we carry are for up to 3GHz. We offer higher frequency range cables as specials.
massimo.giudici  (posted 2015-07-31 16:43:52.063)
CA29XX were given at DC-12.4 GHz few years ago. Now they are announcend DC-3GHz????
besembeson  (posted 2015-09-24 09:47:25.0)
Response from Bweh at Thorlabs USA: 3GHz is the correct specifications for the cables we carry. I will follow-up by email regarding the previous numbers.
bdada  (posted 2012-01-26 17:21:00.0)
Response from Buki at Thorlabs: Thank you for using our feedback forum. We would like to assist you further with your application but we do not have your contact information. Please email TechSupport@thorlabs.com
user  (posted 2012-01-11 20:50:29.0)
Hello: how good is the isolation of coupling between calbes?
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SMA to SMA Cables

SMA Male Cord Ends
Click to Enlarge

Each Cable is Terminated with SMA Male Connectors
  • Available in 6" to 72" Lengths
  • 50 Ω Impedance
  • DC - 3 GHz Frequency Range
  • 750 V (RMS) Dielectric Withstanding Voltage
  • 250 V (RMS) Working Voltage
  • RG-316 Cable
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CA2906 Support Documentation
CA2906SMA Coaxial Cable, SMA Male to SMA Male, 6" (152 mm)
$16.64
Today
CA2912 Support Documentation
CA2912SMA Coaxial Cable, SMA Male to SMA Male, 12" (304 mm)
$17.22
Today
CA2924 Support Documentation
CA2924SMA Coaxial Cable, SMA Male to SMA Male, 24" (609 mm)
$18.53
Today
CA2948 Support Documentation
CA2948SMA Coaxial Cable, SMA Male to SMA Male, 48" (1219 mm)
$21.14
Today
CA2972 Support Documentation
CA2972SMA Coaxial Cable, SMA Male to SMA Male, 72" (1829 mm)
$23.00
Today
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Premium SMA-to-SMA Microwave Cables

Microwave Cable Connectors
Click to Enlarge

Each Cable is Terminated with SMA Male Connectors
Common Specifications
Outer Cable Diameter 2.6 mm
Center Conductor (Solid) Ø0.5 mm
Coupling Hex Nut Size 5/16"
Recommended Coupling Torque 5 in•lb (0.56 N•m)
Frequency Range DC - 26 GHz
Impedance 50 Ω
Withstand Voltage 500 VDC
Minimum Bend Radius 14 mm
Capacitance 96 pF/m
Maximum Average Power 28 W @ 10 GHz
Maximum VSWRa 1.3 @ 18 GHz
1.7 @ 26 GHz
Propagation Velocity 69.5%
  • Voltage Standing Wave Ratio
  • Premium Microwave Cables for High-Frequency Applications
  • Available in 3" to 120" Lengths
  • 50 Ω Impedance
  • DC - 26 GHz Frequency Range
  • 500 VDC Withstand Voltage
  • 2.6 mm Cable Diameter

Thorlabs’ SMA-to-SMA Microwave Cables support frequencies from DC up to 26 GHz. Each flexible cable is terminated with an SMA male connector on either end (see the image to the right). They are available in lengths ranging from 3" to 120". Each cable has a low VSWR from DC to 26 GHz as well as a low insertion loss. In general, we recommend using the shortest cable that is suitable for your application.

The SMA connector can mate directly to a 2.92 mm, 3.5 mm, or K connector. As a result, these cables are compatible with many of Thorlabs’ High-Speed Detectors or Fiber-Coupled EO Modulators that use SMA connectors.

For more information on Thorlabs’ full selection of Premium Microwave Cables for high-frequency applications, see the full web presentation.

A preset torque wrench is available below to ensure that the proper mating torque is supplied when connecting these cables. A torque wrench with a preset torque value should always be used to mate these coaxial connectors. Not doing so can damage the cable or reduce its overall performance.

Item # Length Max Insertion Loss Insertion Loss Plot
(Click to Enlarge)
SMM3 76 mm ± 8 mm (3.00" ± 0.30") 0.9 dB
SMM6 152 mm ± 10 mm (6.00" ± 0.40") 1.3 dB
SMM12 305 mm ± 10 mm (12.00" ± 0.40") 2.0 dB
SMM24 610 mm ± 10 mm (24.00" ± 0.40") 3.5 dB
SMM36 914 mm ± 10 mm (36.00" ± 0.40") 4.9 dB
SMM72 1829 mm ± 20 mm (72.00" ± 0.80") 9.5 dB
SMM120 3048 mm ± 30 mm (120.00" ± 1.20") 15.3 dB
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SMM3 Support Documentation
SMM3Microwave Cable, SMA Male to SMA Male, 3" (76 mm)
$48.20
Today
SMM6 Support Documentation
SMM6Microwave Cable, SMA Male to SMA Male, 6" (152 mm)
$53.55
Today
SMM12 Support Documentation
SMM12Microwave Cable, SMA Male to SMA Male, 12" (305 mm)
$58.91
Today
SMM24 Support Documentation
SMM24Microwave Cable, SMA Male to SMA Male, 24" (610 mm)
$64.26
Today
SMM36 Support Documentation
SMM36Microwave Cable, SMA Male to SMA Male, 36" (914 mm)
$74.97
Today
SMM72 Support Documentation
SMM72Microwave Cable, SMA Male to SMA Male, 72" (1829 mm)
$107.10
Today
SMM120 Support Documentation
SMM120Microwave Cable, SMA Male to SMA Male, 120" (3048 mm)
$144.59
Today
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SMA-to-BNC Cables

SMA to BNC Cord Ends
Click for Details

Boot Style May Vary
SMA to BNC Cable Drawing
Click to Enlarge

Boot Style Pictured Above is Only Representative
  • Available in 6" to 72" Lengths
  • 50 Ω Impedance
  • DC - 4 GHz Frequency Range
  • 750 V (RMS) Dielectric Withstanding Voltage
  • 250 V (RMS) Working Voltage
  • RG-316 Cable
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CA2806 Support Documentation
CA2806SMA Coaxial Cable, SMA Male to BNC Male, 6" (152 mm)
$17.46
Today
CA2812 Support Documentation
CA2812SMA Coaxial Cable, SMA Male to BNC Male, 12" (304 mm)
$18.05
Today
CA2824 Support Documentation
CA2824SMA Coaxial Cable, SMA Male to BNC Male, 24" (609 mm)
$19.13
Today
CA2848 Support Documentation
CA2848SMA Coaxial Cable, SMA Male to BNC Male, 48" (1219 mm)
$21.26
Today
CA2872 Support Documentation
CA2872SMA Coaxial Cable, SMA Male to BNC Male, 72" (1829 mm)
$23.00
Today
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Premium SMA-to-SMP Microwave Adapter Cables

SMA-to-SMP Microwave Cable
Click to Enlarge

SMA Male to SMP Female
(Item #s SMGF3 and SMGF6)
Common Specifications
Outer Cable Diameter 2.64 mm
Center Conductor (Solid) Ø0.51 mm
Coupling Hex Nut Size 5/16"
Recommended Coupling Torque 5 in•lb (0.56 N•m)
Frequency Range DC - 18 GHz
Impedance 50 Ω
Capacitance 96 pF/m
Maximum VSWRa 1.4 @ 18 GHz
Propagation Velocity 69.5%
  • Voltage Standing Wave Ratio
SMA-to-SMP Microwave Cable
Click to Enlarge

SMA Female to SMP Female
(Item #s SFGF3 and SFGF6)
  • Premium Microwave Cables for High-Frequency Applications
  • 50 Ω Impedance
  • Available in 3" or 6" Lengths
  • DC - 18 GHz Frequency Range
  • 1500 VDC Withstand Voltage
  • 2.64 mm Cable Diameter
  • Available with SMA Male or Female Connector to SMP Female Connector

Thorlabs’ Premium Microwave Adapter Cables have an SMP female connector on one end and either a male or female SMA connector on the other. Each style of adapter cable is available in 3" or 6" lengths. Each cable has a low VSWR of ≤1.4 from DC to 18 GHz, as well as a low insertion loss (see the table below). In general, we recommend using the shortest cable that is suitable for your application.

The SMP connector can mate directly to a GPO® connector, while the SMA connector can mate directly to a 2.92 mm, 3.5 mm, or K™ connector. The GPO connector compatibility makes these cables suitable for use with Thorlabs’ Fiber-Coupled EO Modulators.

For more information on Thorlabs’ full selection of Premium Microwave Cables for high-frequency applications, see the full web presentation.

A preset torque wrench is available below to ensure that the proper mating torque is supplied when connecting these cables. A torque wrench with a preset torque value should always be used to mate these coaxial connectors. Not doing so can damage the cable or reduce its overall performance.

Item # Length Max Insertion
Loss
Minimum Bend
Radius
Withstand Voltage Maximum Average Power
SMGF3 76 mm ± 8 mm (3.00" ± 0.30") 1.0 dB 6.4 mm 1500 VDC 31 W @ 10 GHz
SMGF6 152 mm ± 10 mm (6.00" ± 0.40") 1.2 dB
SFGF3 76 mm ± 8 mm (3.00" ± 0.30") 1.0 dB
SFGF6 152 mm ± 10 mm (6.00" ± 0.40") 1.2 dB
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SMGF3 Support Documentation
SMGF3Microwave Adapter Cable, SMA Male to SMP Female, 3" (76 mm)
$53.55
Today
SMGF6 Support Documentation
SMGF6Microwave Adapter Cable, SMA Male to SMP Female, 6" (152 mm)
$64.26
Today
SFGF3 Support Documentation
SFGF3Microwave Adapter Cable, SMA Female to SMP Female, 3" (76 mm)
$53.55
3 weeks
SFGF6 Support Documentation
SFGF6Microwave Adapter Cable, SMA Female to SMP Female, 6" (152 mm)
$64.26
Today
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MMCX-to-SMA Cable

  • MMCX Male Connector to SMA Male Connector
  • 1 m Cable Length
  • DC - 6 GHz Frequency Range
  • 50 Ω Normal Impedance
  • 170 V Max Operating Voltage

The CA3439 RG-174 coaxial cable features a male MMCX connector on one end and a male SMA connector on the other. It can be connected to I/O ports on the Kinesis® Vertical Translation Stage and Kinesis® 30 mm XY Stage for external triggering applications.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CA3439 Support Documentation
CA3439Customer Inspired! RG-174 Coaxial Cable, MMCX Male to SMA Male, 1 m (39")
$30.74
Today
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Preset Torque Wrench for SMA Connectors

Coaxial Connector Wrench
Click to Enlarge

The Wrench is Engraved for Easy Identification in the Field
  • Break-Over Design Ensures Proper Mating Torque is Supplied
  • Preset to 5 in-lbs (0.57 N•m) to Prevent Over-Tightening of Brass SMA Connectors
  • Engraved with Preset Torque Value, Torque Direction, Wrench Size, and Item #

These 5/16” Torque Wrenches have a preset torque value of 5 in-lbs to prevent over-tightening most SMA connectors. When the preset torque value has been achieved, the break-over design will cause the pivoting joint to bend. This will prevent further force from being applied to the connector. The wrench's hex head will move back into place once the force is removed. Each wrench is engraved with its preset torque value, torque direction, wrench size, and item # for easy identification in the field.

The preset torque value for each wrench is guaranteed for one year from the date of purchase. If necessary, the wrench may be returned to Thorlabs for recalibration, please contact Tech Support for details.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
TQW5A Support Documentation
TQW5A5/16" Preset Torque Wrench for Coaxial Connectors, 5 in-lbs
$240.98
Today
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Cable Racks

  • Wall Mount Cable Racks
  • Store Cables Straight and Untangled

The WMR14 is a test lead holder for wires up to 0.26" (6.6 mm) in diameter and has 14 slots for cables. It is ideal for holding fiber optic patch cables.

The WMR9 is a test lead holder for wires up to 0.45" (11.4 mm) in diameter and has 9 slots for cables. The wide slots are ideal for holding power cords and heavy duty cables. 

These wall mount cable racks are made from cold rolled steel with a baked enamel finish. The WMR14 is 11.00" (279.4 mm) long and the WMR9 is 10.96" (278.5 mm) long. Both racks extend outward from the wall by 3.51" (89.1 mm) and feature two mounting holes that are separated by 6.63" (168.3 mm). 

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
WMR14 Support Documentation
WMR14Wall Mount BNC, SMA, SMC, & Fiber Optic Cable Rack, 14 Slot
$18.75
Today
WMR9 Support Documentation
WMR9Wall Mount Power Cord and Heavy-Duty Cable Rack, 9 Slot
$18.75
Today