{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-640431-7","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-640431-7","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-640431-7","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-640431-7","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156, 3-640431-7, 7-position IDC receptacle, 0.156\" (3.96mm) pitch, 1 row, 18 AWG, tin 80.0µin contact finish, free hanging, closed end, orange.","salesMarkdown":"## 7-Position IDC Receptacle for MTA-156 Harnesses The TE Connectivity 3-640431-7 is a 7-position IDC receptacle in the MTA-156 series, built for mass-terminating 18 AWG discrete or ribbon cable into a single-row, free-hanging housing. The 0.156\" (3.96mm) pitch matches the MTA-156 header footprint — the same pitch used across the series, so the IDC slot lines up with the conductor spacing on standard 0.156\" ribbon cable. Watch pin-one every press: the closed-end feature stops the cable from pushing through the back of the housing, which keeps the termination depth consistent across all 7 positions. The orange colour makes this 7-position part easy to spot on a bench with other MTA-156 receptacles in different position counts. ## Termination and Wire Prep This is an IDC (Insulation Displacement Connector) termination — the 18 AWG wire is pressed into the slot, and the contact tines cut through the insulation to make the gas-tight joint. No stripping, no crimping. The 80.0µin (2.03µm) tin contact finish is thick enough for the IDC wipe and for moderate mating cycles in a controlled environment — think inside an enclosure, not under the hood. The free-hanging mount means this receptacle lives at the end of a cable, not on a board. It mates with the standard MTA-156 header (male pin header, 0.156\" pitch, 7 positions).","metaTitle":"TE MTA-156 3-640431-7, 7-Pos IDC Receptacle, 0.156\" Pitch","metaDescription":"TE MTA-156 3-640431-7 7-position IDC receptacle, 0.156\" pitch, 18 AWG, tin 80.0µin contacts. Active lifecycle, sourced to order.","metaKeywords":null},"attributes":{"series":"MTA-156","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Circular Connectors","Panel-Mount & In-Line Circular"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Orange","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"18 AWG","Row Spacing":"-","Contact Type":"Female Socket","Mounting Type":"Free Hanging (In-Line)","Connector Type":"Receptacle","Contact Finish":"Tin","Fastening Type":"-","Number of Rows":"1","Product Status":"Active","lifecycle_stage":"unknown","Cable Termination":"IDC","Base Product Number":"640431","Number of Positions":"7","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.57000","currency":"USD"},{"qty":10,"price":"$0.53200","currency":"USD"},{"qty":25,"price":"$0.52960","currency":"USD"},{"qty":50,"price":"$0.51600","currency":"USD"},{"qty":100,"price":"$0.44270","currency":"USD"},{"qty":250,"price":"$0.40040","currency":"USD"},{"qty":500,"price":"$0.37816","currency":"USD"},{"qty":1000,"price":"$0.33144","currency":"USD"},{"qty":2500,"price":"$0.32699","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/9057fa023bf54f8bf350b0b7b59bcd9f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 3-640431-7 compatible with standard MTA-156 headers?","answer":"Yes, the 3-640431-7 mates with any standard MTA-156 male pin header (same series, 0.156\" pitch, 7 positions). The IDC termination is on the receptacle side; the header is through-hole or surface-mount on the PCB."},{"question":"What wire gauge does 3-640431-7 support?","answer":"The 3-640431-7 is rated for 18 AWG discrete or ribbon cable, terminated via IDC. The slot geometry is sized for this gauge — using a different wire size risks a poor gas-tight joint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-640431-7","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/3-640431-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:45.458Z","lastPublished":"2026-07-17T19:50:45.458Z","indexable":true}}