Skip to main content
Amphenol 903-406J-51R — RF Cable Assemblies

Amphenol RF 903-406J-51R SMB Receptacle, 50 Ohm, 4 GHz, Bulk

MPN903-406J-51R
Active

Amphenol RF SMB receptacle, male pin, 50 Ohm, 4 GHz, 1 port, panel mount bulkhead, gold body, solder cup termination, 500 mating cycles, Bulk.

$11.4200Ref. 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 China distributor & sourcing agent· Listing updated Aug 2026

Specifications

903-406J-51R key specifications
ParameterValue
MountingPanel Mount
Connector typeReceptacle, Male Pin
Fastening typeSnap-On
Frequency - max4 GHz
Mounting featureBulkhead - Rear Side Nut
Operating temperature-65°C~165°C
Body materialBrass
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Impedance50Ohm

All specifications

903-406J-51R additional specifications
ParameterValue
Body finishGold
Mating cycles500
Insertion loss0.3dB
Number of ports1
Shield terminationSolder
Contact terminationSolder Cup
Center contact platingGold

Product details

The 903-406J-51R: It terminates via a solder cup — you tin the centre conductor and the shield braid, then solder each into its cup. The PTFE dielectric and gold-over-brass body keep the signal path stable from DC through 4 GHz, covering ISM bands, cellular, and GPS /L2 without a second thought.

The 4 GHz maximum frequency is the usable top end before insertion loss climbs past 0.3 dB. The 500 mating cycles come from the gold-on-gold contact interface.

Frequently asked questions

What is the impedance of 903-406J-51R?

50 Ohm nominal, standard for SMB interfaces and common RF systems.

How many mating cycles does 903-406J-51R have?

Rated for 500 mating cycles, supported by gold-on-gold contact plating.

Where can I buy 903-406J-51R?

Sourced to order against your BOM quantity. Availability and pricing confirmed at quote time.