{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MS-156C(20)","brand":"Hirose Electric Co Ltd","brandSlug":"hirose-electric-co-ltd","productSlug":"MS-156C~120~2","canonicalUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/MS-156C~120~2","factsUrl":"https://icsourcedirect.com/api/mcp/products/MS-156C(20)","rawCanonicalId":null},"summary":{"shortDescription":"Hirose MS-156C series coaxial switch receptacle, female socket, 1 port, 50 Ohm impedance, 11 GHz max frequency, 0.4 dB insertion loss, 100 mating cycles, surface mount, gold body, internal switch.","salesMarkdown":"## Coaxial Switch Receptacle for RF Test and Antenna Ports The Hirose MS-156C(20) is a surface-mount coaxial switch receptacle from the MS-156C series, designed as a female socket with an internal switch feature. It mates with a 4 mm diameter plug, making it suitable for RF switching applications such as antenna port selection or calibration access on PCB assemblies. ## What the 11 GHz and 50 Ohm Ratings Mean for Your RF Path The 11 GHz frequency ceiling means this connector can handle high-speed digital or RF signals up into the X-band, but above that the insertion loss and VSWR will exceed the design targets. The internal switch creates a normally-closed RF path that opens when the plug is inserted, which is useful for switching between an internal antenna and an external test port without adding a separate relay. ## Mating and Termination — What Connects Here This receptacle uses a snap-on fastening type for quick mating with the corresponding 4 mm diameter plug. The gold body and gold-plated center contact (copper alloy) provide corrosion resistance and maintain contact integrity over the rated 100 mating cycles. For repeated test-port use, that cycle life is adequate; for a permanent install it's more than enough.","metaTitle":"Hirose MS-156C(20) Coaxial Switch Receptacle, 50 Ohm, 11 GHz","metaDescription":"Hirose MS-156C(20) coaxial switch receptacle, female socket, 50 Ohm impedance, 11 GHz max frequency, 0.4 dB insertion loss, 100 mating cycles, SMT, gold body","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["RF / Coaxial Connectors","RF Cable Assemblies"],"specifications":{"Mfr":"Hirose Electric Co Ltd","Series":"MS-156C","Package":"Tape & Reel (TR) Cut Tape (CT)","Features":"Internal Switch","Includes":"-","Impedance":"50 Ohms","Body Finish":"Gold","Cable Group":"-","Body Material":"Phosphor Bronze","Housing Color":"Gold","Mating Cycles":"100","Mounting Type":"Surface Mount","Connector Type":"Receptacle, Female Socket","Fastening Type":"Snap-On","Insertion Loss":"0.4dB","Product Status":"Active","Connector Style":"Coaxial Switch - 4mm Plug Dia","Frequency - Max":"11 GHz","Number of Ports":"1","lifecycle_stage":"unknown","Mounting Feature":"-","Ingress Protection":"-","Shield Termination":"Solder","Base Product Number":"MS-156C","Contact Termination":"Solder","Dielectric Material":"Polyamide (PA), Nylon 6T","Operating Temperature":"-40°C ~ 85°C","Center Contact Plating":"Gold","Center Contact Material":"Copper Alloy"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/acea45331ae46f5fd1cbf56f74d93cba.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy the MS-156C(20) and what is the lead time?","answer":"Submit an RFQ for your quantity to get a firm delivery commitment."},{"question":"What is the impedance of MS-156C(20)?","answer":"The MS-156C(20) is a 50 Ohm coaxial switch receptacle, designed for 50 Ohm system impedance matching."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/hirose-electric-co-ltd/MS-156C~120~2","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-156C~120~2 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}}