{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MS-151NB","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"MS-151NB","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/MS-151NB","factsUrl":"https://icsourcedirect.com/api/mcp/products/MS-151NB","rawCanonicalId":null},"summary":{"shortDescription":"Hirose MS-151NB coaxial switch receptacle, female socket, 50 Ohms, 3 GHz max, 0.6dB insertion loss, 5000 mating cycles, surface mount right angle, snap-on fastening, nickel body.","salesMarkdown":"## Coaxial Switch Receptacle for RF Signal Routing The Hirose MS-151NB is a coaxial switch receptacle with a 4.15mm plug diameter, designed for RF signal routing where controlled impedance and repeatable switching matter. The internal switch feature allows signal path selection within the connector body — useful for antenna switching, band selection, or test-point isolation in compact RF assemblies. This is a surface-mount, right-angle receptacle with a female socket interface. The snap-on fastening gives a positive tactile engagement without requiring a threaded coupling nut, which saves board space and speeds assembly in high-volume production. ## RF Performance and Signal Integrity The 3 GHz frequency ceiling covers common wireless bands including cellular, Wi-Fi, and ISM applications. Insertion loss of 0.6dB means the connector contributes about 13% power loss at the rated frequency — a typical figure for a switching coaxial connector in this class. For signal budget calculations, factor this loss into the link margin, especially in multi-connector signal chains. The internal switch feature adds a mechanical switching element inside the connector body. This is not a standard coaxial pass-through — the switch position changes the signal path, so verify the switching logic (normally-open, normally-closed, or transfer) against your circuit requirements before specifying. ## Mechanical and Environmental Ratings The polyamide (nylon) dielectric maintains stable RF properties across this range. The right-angle SMT footprint requires a reflow soldering profile compatible with the nylon housing material. The shield termination is solder — the ground connection relies on a good solder fillet around the body pads for consistent RF grounding and shielding effectiveness.","metaTitle":"Hirose MS-151NB Coaxial Switch Receptacle, 50 Ohm, 3 GHz","metaDescription":"Hirose MS-151NB coaxial switch receptacle, 50 Ohm impedance, 3 GHz max frequency, 0.6dB insertion loss, 5000 mating cycles. SMT right-angle, active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Series":"MS-151NB","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Internal Switch","Includes":"-","Impedance":"50 Ohms","Body Finish":"Nickel","Cable Group":"-","Body Material":"Stainless Steel","Housing Color":"Black","Mating Cycles":"5000","Mounting Type":"Surface Mount, Right Angle","Connector Type":"Receptacle, Female Socket","Fastening Type":"Snap-On","Insertion Loss":"0.6dB","Connector Style":"Coaxial Switch - 4.15mm Plug Dia","Frequency - Max":"3 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"MS-151","Contact Termination":"Solder","Dielectric Material":"Polyamide (PA), Nylon","Operating Temperature":"-40°C ~ 85°C","Center Contact Plating":"Gold","Center Contact Material":"Phosphor Bronze"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.6200","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/68de6e4bd660d9c5030ab5cf5e5f030e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the impedance of MS-151NB?","answer":"The MS-151NB is a 50 Ohm nominal impedance coaxial connector, matching the standard for most RF system designs."},{"question":"How many mating cycles does MS-151NB support?","answer":"The MS-151NB is rated for 5000 mating cycles, making it suitable for applications requiring frequent connect and disconnect."},{"question":"Can MS-151NB be used with 1.13mm coaxial cable?","answer":"The evidence does not specify compatible cable diameters. The connector interface is a 4.15mm plug diameter coaxial switch receptacle — verify cable compatibility with the manufacturer's application notes or test with the mating plug assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/MS-151NB","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/hirose-electric-co-ltd/MS-151NB when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}