{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-643818-2","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-643818-2","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643818-2","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-643818-2","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 3-643818-2, 2 positions, 0.156\" (3.96 mm) pitch, 1 row, free hanging, IDC termination, tin plating, locking ramp, bulk.","salesMarkdown":"The closed end and polarizing key prevent mis-mating with the header, which matters when you're on the line and the harness only fits one way. The 20 AWG wire gauge is fixed; the slot geometry won't accept a different size reliably. For ribbon cable the pitch matches the cable pitch, so you get simultaneous termination across all positions. The locking ramp holds the connector to the header under vibration — the ramp clicks into place and won't back out on a machine that shakes. ## Contact Finish and Duty The female sockets are tin-plated at 80.0 µ\" (2.03 µm). The thickness at 80 µ\" is on the higher end for tin, giving some margin against fretting corrosion in mildly humid cabinets. Active lifecycle — no end-of-life notice on record. The yellow colour is a visual identifier on the reel or in the bin — not a functional spec, but it makes the part easy to spot in a drawer of black or natural housings.","metaTitle":"TE MTA-156 3-643818-2 Receptacle, 2 Pos, 0.156\" Pitch, IDC","metaDescription":"TE MTA-156 3-643818-2 receptacle, 2 positions, 0.156\" (3.96 mm) pitch, IDC termination for 20 AWG wire, tin plating, locking ramp, active lifecycle.","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":"2","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.37000","currency":"USD"},{"qty":10,"price":"$0.33100","currency":"USD"},{"qty":25,"price":"$0.32960","currency":"USD"},{"qty":50,"price":"$0.32260","currency":"USD"},{"qty":100,"price":"$0.27580","currency":"USD"},{"qty":250,"price":"$0.24816","currency":"USD"},{"qty":500,"price":"$0.23438","currency":"USD"},{"qty":1000,"price":"$0.20543","currency":"USD"},{"qty":2500,"price":"$0.20406","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ad26fc9853a9d4a4928ffe54fdc804e3.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the pitch of 3-643818-2?","answer":"The pitch is 0.156\" (3.96 mm), which is the standard spacing for the MTA-156 series and determines the board footprint."},{"question":"What wire gauge is compatible with 3-643818-2?","answer":"The connector is designed for 20 AWG discrete or ribbon cable with IDC termination."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643818-2","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/te-connectivity-amp-connectors/3-643818-2 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}}