{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4-643818-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"4-643818-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/4-643818-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/4-643818-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 4-643818-3, 13 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, 20 AWG, tin contacts, free hanging, locking ramp.","salesMarkdown":"## Harness Fit: 13 Circuits, 0.156\" Pitch, IDC for 20 AWG The TE Connectivity MTA-156 4-643818-3 is a 13-position single-row receptacle that terminates discrete or ribbon cable via IDC, sized for 20 AWG wire. The 0.156\" (3.96mm) pitch matches the standard MTA-156 header footprint — a common spacing for appliance and lighting harnesses where the board layout has room for a wider pitch than 0.100\" headers. ## Contact Finish: 80.0µin Tin — High Cycle, No Gold Needed That is a heavy tin plate — well above the 40–50 µin flash typical on commodity IDC connectors — so it handles repeated insertion and extraction in a test fixture or field-service harness without galling the contact surface. Tin is the right choice here: the MTA-156 system is designed for cost-sensitive, moderate-cycle applications where gold's corrosion resistance is not needed. The mating header's tin-plated posts wipe through this thick tin layer on each mate, maintaining a gas-tight junction. ## Mating and Mounting: Free-Hanging Receptacle, Locking Ramp It mates with any standard MTA-156 header (vertical or right-angle, through-hole or surface-mount) that has the same 0.156\" pitch and the mating locking ramp feature. The polarizing key on the closed end ensures the connector only goes on one way, which saves a harness assembler from a flipped-wire rework. The IDC termination is a one-step press: the 20 AWG wire is pushed into the slot, and the insulation is displaced by the contact tines — no stripping, no crimping.","metaTitle":"TE MTA-156 4-643818-3, 13 Pos IDC Receptacle, 0.156\" Pitch","metaDescription":"TE Connectivity MTA-156 4-643818-3 receptacle, 13 positions, IDC termination for 20 AWG, 0.156\" pitch, tin contacts, locking ramp.","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":"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":"13","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.32000","currency":"USD"},{"qty":10,"price":"$1.23400","currency":"USD"},{"qty":25,"price":"$1.18840","currency":"USD"},{"qty":50,"price":"$1.17680","currency":"USD"},{"qty":100,"price":"$1.06200","currency":"USD"},{"qty":250,"price":"$1.02760","currency":"USD"},{"qty":500,"price":"$0.93574","currency":"USD"},{"qty":1000,"price":"$0.83815","currency":"USD"},{"qty":2500,"price":"$0.78074","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy 4-643818-3 available via RFQ confirmation today?","answer":"4-643818-3 is sourced to order through independent distribution. Submit an RFQ for current availability and pricing — stock levels and lead time are confirmed at quote time."},{"question":"Is 4-643818-3 compatible with standard MTA-156 headers?","answer":"Yes, this receptacle mates with any standard MTA-156 header that has the same 0.156\" pitch and a locking ramp. The polarizing key ensures correct orientation."},{"question":"What is the exact pitch and wire gauge for TE 4-643818-3?","answer":"The pitch is 0.156\" (3.96mm) and the wire gauge is 20 AWG, terminated via IDC."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/4-643818-3","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/4-643818-3 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}