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31-202 — Amphenol product photo
Amphenol

Amphenol 31-202 BNC Plug, 50 Ohm, 4 GHz, Silver Contact

MPN31-202
Active

Amphenol BNC plug, male pin, 50 Ohm, 4 GHz, 0.2 dB insertion loss, 500 V, solder termination, clamp shield, for RG-58 cable, bulk pack.

$8.2000Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
  • New & original stockTraceable channels only — no mixed lots, no re-taped reels.
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Specifications

31-202 Technical Specifications
ParameterValue
Mounting typeFree Hanging (In-Line)
Connector typePlug, Male Pin
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 GHz
Cable groupRG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, 9907
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Includes6 pcs - 1 Connector, 1 Braid Clamp, 1 Clamp, 1 Contact, 1 Gasket, 1 Washer
Impedance50Ohm
Body finishNickel
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationClamp
Contact terminationSolder
Center contact platingSilver

Product details

Cable Compatibility and Assembly

The 31-202: This plug accepts RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 cable groups. The center contact is soldered (solder termination), and the shield is secured with a clamp — a field-reliable method that avoids the need for a crimp tool. The silver-plated brass center contact and nickel-plated brass body provide good conductivity and corrosion resistance for indoor and sheltered outdoor use.

The 500 V rating is typical for BNC interfaces and covers most RF and low-power applications.

The 31-206 includes a lockwasher and nut for panel mounting, whereas the 31-202 comes with a gasket and washer for cable-end assembly. Choose the 31-202 when you need a male plug on the cable end; choose the 31-206 for a panel-mount receptacle.

Frequently asked questions

What cable is Amphenol 31-202 compatible with?

The 31-202 is compatible with RG-58, 58A, 58B, 58C, 141, 303, LMR-195, Belden B7806A, and 9907 cable groups. It is not compatible with LMR-400 — that cable requires a larger connector body.

Does Amphenol 31-202 come with all parts needed for assembly?

Yes, the kit includes 6 pieces: the connector body, braid clamp, clamp, contact, gasket, and washer. You only need to supply the cable and a soldering iron for the center contact.