{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-331272-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-331272-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-331272-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-331272-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors 3-331272-4, Series 2 PCB pin socket, accepts 0.022\" ~ 0.025\" pin diameter, gold-plated beryllium copper contact, solder termination, no tail, bulk package.","salesMarkdown":"## Pin diameter acceptance and contact fit The 3-331272-4: This socket accepts a pin diameter range of 0.022\" to 0.025\" (0.56 mm to 0.64 mm). That is the single most important fit dimension — if your mating pin falls outside that window, the contact force will be wrong and the connection unreliable. The socket depth is 0.125\" (3.18 mm), and the overall length is 0.138\" (3.51 mm). The mounting hole diameter required is 0.052\" (1.32 mm) — confirm your PCB drill size before committing the BOM. ## Gold plating and contact material for cycle life The contact base metal is beryllium copper. ## Termination and mounting — no tail, solder only This socket has no tail. It is designed for solder termination into a plated through-hole — not for press-fit or wire-wrap. The knockout bottom feature allows the socket to be inserted into a PCB and soldered, with the bottom open for pin passage or cleaning.","metaTitle":"3-331272-4 TE Connectivity PCB Pin Socket, Gold","metaDescription":"3-331272-4 TE Connectivity AMP Connectors PCB pin socket. Accepts 0.022-0.025 in pin diameter. Gold plating, beryllium copper contact. Active production.","metaKeywords":null},"attributes":{"series":"2","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","PCB Pin Sockets"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Series":"2","Package":"Bulk","Features":"Knockout Bottom","Tail Type":"No Tail","Termination":"Solder","Socket Depth":"0.125\\\" (3.18mm)","Tail Diameter":"-","Contact Finish":"Gold","Product Status":"Active","Board Thickness":"-","Flange Diameter":"0.070\\\" (1.77mm)","Insertion Force":"-","lifecycle_stage":"unknown","Contact Material":"Beryllium Copper","Length - Overall":"0.138\\\" (3.51mm)","Pin Hole Diameter":"-","Base Product Number":"331272","Accepts Pin Diameter":"0.022\\\" ~ 0.025\\\" (0.56mm ~ 0.64mm)","Operating Temperature":"-65°C ~ 126°C","Mounting Hole Diameter":"0.052\\\" (1.32mm)","Accepts Square Pin Size":"-","Contact Finish Thickness":"30.0µin (0.76µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.59000","currency":"USD"},{"qty":10,"price":"$0.55200","currency":"USD"},{"qty":25,"price":"$0.54960","currency":"USD"},{"qty":50,"price":"$0.53580","currency":"USD"},{"qty":100,"price":"$0.45960","currency":"USD"},{"qty":250,"price":"$0.41568","currency":"USD"},{"qty":500,"price":"$0.39260","currency":"USD"},{"qty":1000,"price":"$0.34410","currency":"USD"},{"qty":2500,"price":"$0.33948","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/fd57627a30d05e3a58363eef1379d984.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does 3-331272-4 have a tail?","answer":"No. The tail type is listed as 'No Tail' — it is a solder-cup style socket meant for through-hole soldering, not for wire-wrap or press-fit."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-331272-4","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/te-connectivity-amp-connectors/3-331272-4 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}}