{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-643821-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-643821-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643821-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-643821-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 3-643821-4, 4 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, 26 AWG, tin contact finish, free-hanging, locking ramp.","salesMarkdown":"## 0.156\" Pitch IDC Receptacle for Discrete or Ribbon Cable The 3-643821-4: It uses a single row of female socket contacts on a 0.156\" (3.96mm) pitch, with a closed-end housing and a polarizing key to prevent mis-mating. This makes the connector a fast option for point-to-point wiring in appliances, lighting, and control panels where 26 AWG signal runs are common. ## Tin-Plated Contacts at 80.0µin — Moderate Cycle Life, Low Cost The 3-643821-4 uses tin-plated contacts with a finish thickness of 80.0µin (2.03µm). The thick 80.0µin layer provides more wear resistance than thinner tin flash, extending the usable life in moderate-duty harnesses.","metaTitle":"TE Connectivity MTA-156 3-643821-4","metaDescription":"TE MTA-156 4-position IDC receptacle, 0.156\" pitch, 26 AWG, tin-plated contacts, locking ramp. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"MTA-156","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Panel-Mount & In-Line Circular"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Blue","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End, Polarizing Key","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"26 AWG","Row Spacing":"-","Contact Type":"Female Socket","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Receptacle","Contact Finish":"Tin","Fastening Type":"Locking Ramp","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Cable Termination":"IDC","Base Product Number":"643821","Number of Positions":"4","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5800","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.58000","currency":"USD"},{"qty":10,"price":"$0.54500","currency":"USD"},{"qty":25,"price":"$0.54280","currency":"USD"},{"qty":50,"price":"$0.52900","currency":"USD"},{"qty":100,"price":"$0.45380","currency":"USD"},{"qty":250,"price":"$0.41052","currency":"USD"},{"qty":500,"price":"$0.38770","currency":"USD"},{"qty":1000,"price":"$0.33981","currency":"USD"},{"qty":2500,"price":"$0.33524","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/fdbcce876e4e651cce625f0f39993f5e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What wire gauge does 3-643821-4 support?","answer":"This MTA-156 receptacle is specified for 26 AWG discrete or ribbon cable, terminated via the IDC slot."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643821-4","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/3-643821-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}