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Amphenol 031-4220 — RF / Coaxial Connectors

Amphenol RF 031-4220 BNC Jack, RG-402, 50 Ohm, 4 GHz

MPN031-4220
Active

Amphenol RF BNC jack, 031-4220, 1 port, 50 Ohm, 4 GHz, panel mount bulkhead, weatherproof, silver body, solder contact, RG-402 cable group, 500 mating cycles.

$10.5984Ref. price · indicative, final on quote
Amphenol 031-4220 datasheet (PDF)
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for stock & sourcing questions
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Jul 2026

Specifications

031-4220 key specifications
ParameterValue
MountingPanel Mount
Connector typeJack, Female Socket
Fastening typeBayonet Lock
Voltage rating500 V
Frequency - max4 GHz
IP ratingWeatherproof
Mounting featureBulkhead - Front Side Nut
Cable groupRG-402 (.141\" Semi Rigid)
Operating temperature-65°C~165°C
Body materialBrass
Housing colorSilver
Dielectric materialPolytetrafluoroethylene (PTFE)

All specifications

031-4220 additional specifications
ParameterValue
Center contact materialBeryllium Copper
PackageBulk
Includes9 pcs - 1 Connector, 1 Braid Clamp, 1 Clamp, 1 Contact, 2 Gaskets, 1 Lockwasher, 1 Nut, 1 Washer
Impedance50Ohm
Body finishSilver
Mating cycles500
Insertion loss0.2dB
Number of ports1
Shield terminationClamp
Contact terminationSolder
Center contact platingSilver

Product details

What This BNC Jack Does in the Assembly

The 031-4220: It is a panel-mount bulkhead connector with a bayonet lock, weatherproof sealing, and a 50 Ohm impedance path rated to 4 GHz. The kit ships as 9 pieces — the connector body, braid clamp, clamp, centre contact, two gaskets, lockwasher, nut, and washer — so the buyer gets everything needed for a single cable termination in one order code.

Cable Compatibility and Electrical Performance

This jack is designed specifically for RG-402 (.141" semi-rigid) cable. The 500 V voltage rating and silver-plated centre contact (beryllium copper) suit it for moderate-power RF paths where signal integrity matters more than raw current.

The brass body with silver finish and PTFE dielectric keeps the signal path stable across temperature swings.

Frequently asked questions

Where can I buy the Amphenol RF 031-4220 connector?

The 031-4220 is available to order through independent distribution. Submit an RFQ for current pricing and lead time — availability is confirmed at quote time.

Is the 031-4220 connector compatible with RG-402 cable?

Yes, the 031-4220 is specified for RG-402 (.141" semi-rigid) cable. The cable group is listed as RG-402, and the shield termination uses a clamp designed for that diameter.

Does 031-4220 include the center contact and all hardware?

Yes, it ships as a 9-piece kit: 1 connector body, 1 braid clamp, 1 clamp, 1 centre contact, 2 gaskets, 1 lockwasher, 1 nut, and 1 washer. Everything needed for a single termination is in the bag.