{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"903-415J-51P","brand":"Amphenol","brandSlug":"amphenol","productSlug":"903-415J-51P","canonicalUrl":"https://icsourcedirect.com/amphenol/903-415J-51P","factsUrl":"https://icsourcedirect.com/api/mcp/products/903-415J-51P","rawCanonicalId":null},"summary":{"shortDescription":"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.","salesMarkdown":"## 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.","metaTitle":"Amphenol RF 903-415J-51P SMB Jack, 50 Ohm, 4 GHz","metaDescription":"Amphenol RF 903-415J-51P SMB jack, male pin, 50 Ohm impedance, 4 GHz max frequency, 0.3 dB insertion loss, 500 mating cycles, gold body, through-hole solder","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors","RF Cable Assemblies"],"specifications":{"Mfr":"Amphenol RF","Series":"-","Package":"Bulk","Features":"-","Includes":"-","Impedance":"50Ohm","Body Finish":"Gold","Cable Group":"-","Body Material":"Brass","Housing Color":"Gold","Mating Cycles":"500","Mounting Type":"Through Hole","Connector Type":"Jack, Male Pin","Fastening Type":"Snap-On","Insertion Loss":"0.3dB","Product Status":"Active","Connector Style":"SMB","Frequency - Max":"4 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"903-415J","Contact Termination":"Solder","Dielectric Material":"Polytetrafluoroethylene (PTFE)","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Brass"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$14.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/7941f9abc8ed3128d36d5e641a44f122.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/903-415J-51P/alternatives.json"},"ai":{"faq":[{"question":"What is the closest equivalent or replacement for the 903-415J-51P?","answer":"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."},{"question":"What is the impedance and frequency range of the 903-415J-51P?","answer":"It is a 50 Ohm SMB jack rated to 4 GHz maximum frequency, with 0.3 dB insertion loss across the band."},{"question":"How many mating cycles does the 903-415J-51P support?","answer":"The gold plating on the brass body and center contact prevents oxidation over that lifetime."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/903-415J-51P","citationPolicyUrl":"https://icsourcedirect.com/llms.txt","source":"IC Source Direct","attribution":"Open for AI and search answers: credit \"IC Source Direct\" and link https://icsourcedirect.com/amphenol/903-415J-51P when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-23T20:41:44.623Z","lastPublished":"2026-07-23T20:41:44.623Z","indexable":true}}