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Amphenol 903-289P-51A2 — RF / Coaxial Connectors

903-289P-51A2 SMB Plug, 50 Ohm, 4 GHz, RG-316, Right Angle

MPN903-289P-51A2
Active

Amphenol RF SMB plug, female socket, 50 Ohm, 4 GHz, right-angle, snap-on, for RG-316 cable, gold body and contacts, 500 mating cycles, kit includes connector, end cap, ferrule.

$8.5000Ref. price · indicative, final on quote
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 supplier — new & surplus connector stock· Listing updated Jul 2026

Specifications

903-289P-51A2 key specifications
ParameterValue
MountingFree Hanging (In-Line), Right Angle
Connector typePlug, Female Socket
Fastening typeSnap-On
Frequency - max4 GHz
Cable groupRG-316
Operating temperature-65°C~165°C
Body materialZinc Alloy
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBeryllium Copper
PackageBulk
Includes3 pcs - 1 Connector, 1 End Cap, 1 Ferrule

All specifications

903-289P-51A2 additional specifications
ParameterValue
Impedance50Ohm
Body finishGold
Mating cycles500
Insertion loss0.6dB
Number of ports1
Shield terminationCrimp
Contact terminationSolder
Center contact platingGold

Product details

Cable termination and what the kit includes

This plug is pre-configured for RG-316 cable, a common 50 Ohm coax with a solid or stranded center conductor. The kit's three pieces (connector body, end cap, ferrule) cover the full termination hardware; you supply the cable and the crimp tool for the ferrule. The snap-on coupling locks with an audible click and releases with a straight pull — no threads to turn, which speeds up repeated connects and disconnects in test setups.

Frequently asked questions

What cable does the 903-289P-51A2 work with?

This plug is designed for RG-316 coaxial cable. The shield is crimped, and the center conductor is soldered.