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903-415J-51P — Amphenol product photo
Amphenol

Amphenol RF 903-415J-51P SMB Jack, 50 Ohm, 4 GHz

MPN903-415J-51P
Active

Amphenol RF SMB jack, male pin, 50 Ohm, 4 GHz, 0.3 dB insertion loss, through-hole solder, gold brass body, 500 mating cycles, bulk.

$14.6000Ref. price · indicative, final on quote
903-415J-51P datasheet
StockContact for availability
MOQ1 pcs
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Specifications

903-415J-51P Technical Specifications
ParameterValue
Mounting typeThrough Hole
Connector typeJack, Male Pin
Fastening typeSnap-On
Frequency - max4 GHz
Operating temperature-65°C~165°C
Body materialBrass
Housing colorGold
Dielectric materialPolytetrafluoroethylene (PTFE)
Center contact materialBrass
PackageBulk
Impedance50Ohm
Body finishGold
Mating cycles500
Insertion loss0.3dB
Number of ports1
Shield terminationSolder
Contact terminationSolder
Center contact platingGold

Product details

SMB Snap-On Jack for 50 Ohm RF Paths

The 903-415J-51P: The snap-on fastening gives a quick, positive lock without tools — useful for dense boards where a wrench can't swing. Rated to 4 GHz with 0.3 dB insertion loss, it handles common wireless and test-interconnect bands cleanly.

What the 500 Mating Cycles and Gold Finish Mean

500 mating cycles is the standard endurance for an SMB snap-on interface — the spring fingers in the jack will eventually lose their grip, but that count covers years of field-service reconnections in test equipment or panel feeds. The gold-on-brass contact surfaces keep the interface oxidation-free across those cycles; a tin-plated SMB would fret and degrade return loss long before 500 mates.

Frequently asked questions

What is the closest equivalent or replacement for the 903-415J-51P?

The 903-NM415J-51P is a form-fit-function peer but uses beryllium copper contacts and is specified as non-magnetic. For general RF use the 903-415J-51P is the standard; the non-magnetic version is only needed in magnetically sensitive environments.

What is the impedance and frequency range of the 903-415J-51P?

It is a 50 Ohm SMB jack rated to 4 GHz maximum frequency, with 0.3 dB insertion loss across the band.

How many mating cycles does the 903-415J-51P support?

The gold plating on the brass body and center contact prevents oxidation over that lifetime.