{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-643818-7","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-643818-7","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643818-7","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-643818-7","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 3-643818-7, 7 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, tin-plated contacts, free-hanging, locking ramp, yellow, bulk.","salesMarkdown":"## What This Connector Does in the Harness The TE Connectivity 3-643818-7 is a 7-position MTA-156 IDC receptacle designed for mass-terminating discrete or ribbon cable to a 0.156\" (3.96mm) pitch header. ## Pitch, Positions, and Termination — What Fits the BOM The 0.156\" (3.96mm) pitch is the defining board-layout dimension — it matches the standard MTA-156 header footprint. The IDC termination accepts 20 AWG wire only, so verify your wire gauge against the BOM before committing. ## Mating and Mounting — Free-Hanging Receptacle It mates with the corresponding MTA-156 header (male pin strip) that is through-hole or surface-mount soldered to the board. The closed end and polarizing key prevent incorrect insertion: the closed end blocks a header with more positions than 7, and the key ensures the receptacle can only be mated one way.","metaTitle":"TE MTA-156 3-643818-7, 7-Pos IDC Receptacle, 0.156\" Pitch","metaDescription":"TE MTA-156 3-643818-7 receptacle, 7 positions, 0.156\" pitch, IDC termination for 20 AWG wire. Tin-plated contacts, locking ramp, RoHS. Sourced to order.","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":"Yellow","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End, Polarizing Key","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"20 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":"643818","Number of Positions":"7","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7000","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.70000","currency":"USD"},{"qty":10,"price":"$0.67600","currency":"USD"},{"qty":25,"price":"$0.67280","currency":"USD"},{"qty":50,"price":"$0.65000","currency":"USD"},{"qty":100,"price":"$0.54500","currency":"USD"},{"qty":250,"price":"$0.51096","currency":"USD"},{"qty":500,"price":"$0.48256","currency":"USD"},{"qty":1000,"price":"$0.42295","currency":"USD"},{"qty":2500,"price":"$0.40024","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ad26fc9853a9d4a4928ffe54fdc804e3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What wire gauge does 3-643818-7 accept?","answer":"This IDC receptacle is specified for 20 AWG discrete or ribbon cable. The insulation displacement slot is sized for that wire diameter."},{"question":"What is the pitch of 3-643818-7?","answer":"The pitch is 0.156\" (3.96mm), which is the standard MTA-156 spacing. This matches the header footprint on the PCB."},{"question":"Where can I buy 3-643818-7?","answer":"This part is sourced to order. Contact our sales team for current pricing and lead time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643818-7","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/3-643818-7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:46:37.382Z","lastPublished":"2026-07-22T19:46:37.382Z","indexable":true}}