{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"31-220G-RFX","brand":"Amphenol","brandSlug":"amphenol","productSlug":"31-220G-RFX","canonicalUrl":"https://icsourcedirect.com/amphenol/31-220G-RFX","factsUrl":"https://icsourcedirect.com/api/mcp/products/31-220G-RFX","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol RF 31-220G-RFX, BNC to BNC straight adapter, jack-to-jack, female-to-female, 50 Ohm, 4 GHz, bulkhead mount, includes gasket and hardware, gold-plated center contact, nickel-plated brass body.","salesMarkdown":"## What This BNC Bulkhead Adapter Is The Amphenol RF 31-220G-RFX is a straight BNC-to-BNC adapter configured as a jack-to-jack, female-to-female pass-through. It's designed for panel or bulkhead mounting where you need to extend a 50 Ohm BNC signal path through a chassis wall without changing the connector gender. The adapter comes as a 4-piece kit: the connector body, a gasket for environmental sealing at the panel face, a lockwasher, and a mounting nut — everything needed for a single-hole bulkhead install. ## RF Performance and Key Specs Rated at 50 Ohm impedance and usable up to 4 GHz, this adapter matches standard 50 Ohm BNC cabling and test equipment — common in lab, telecom, and instrumentation setups. ## Build and Materials The body is machined brass with a nickel finish — corrosion-resistant for indoor and sheltered outdoor use. The dielectric is polyoxymethylene (POM) acetal, a stable low-loss material at RF frequencies up to 4 GHz. The bayonet lock coupling on both ends provides a quick, secure mate with standard BNC plugs. No official second-source cross-reference exists, but the functionally similar 31-220N-RFX (same BNC jack-to-jack, bulkhead, 50 Ohm, 4 GHz) omits the gasket and uses a 3-piece kit — a detail to check if the panel seal matters for your install.","metaTitle":"31-220G-RFX BNC Jack-to-Jack Adapter, 50 Ohm, 4 GHz","metaDescription":"31-220G-RFX BNC female-to-female bulkhead adapter, 50 Ohm impedance, 4 GHz max frequency, 500 mating cycles. Includes gasket, lockwasher, nut.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Amphenol RF","Style":"Straight","Series":"-","Package":"Bulk","Features":"-","Includes":"4 pcs - 1 Connector, 1 Gasket, 1 Lockwasher, 1 Nut","Impedance":"50Ohm","Body Finish":"Nickel","Adapter Type":"Jack to Jack","Body Material":"Brass","Center Gender":"Female to Female","Mating Cycles":"500","Mounting Type":"Panel Mount","Adapter Series":"BNC to BNC","Fastening Type":"Bayonet Lock, Bayonet Lock","Insertion Loss":"-","Product Status":"Active","Conversion Type":"Same Series","Frequency - Max":"4 GHz","lifecycle_stage":"unknown","Mounting Feature":"Bulkhead","Ingress Protection":"-","Base Product Number":"31-220","Dielectric Material":"Polyoxymethylene (POM) Acetal","Operating Temperature":"-65°C~165°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze","Convert To (Adapter End)":"BNC Jack, Female Socket","Convert From (Adapter End)":"BNC Jack, Female Socket"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.8300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/59c1e5810b8078663085e473d73a7788.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/31-220G-RFX/alternatives.json"},"ai":{"faq":[{"question":"What is the impedance of 31-220G-RFX?","answer":"The 31-220G-RFX is a 50 Ohm adapter, matching standard 50 Ohm BNC system impedance."},{"question":"Does 31-220G-RFX include the gasket and mounting hardware?","answer":"Yes, it ships as a 4-piece kit: the connector, a gasket, a lockwasher, and a nut — all included for a bulkhead mount."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/31-220G-RFX","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/31-220G-RFX 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}}