{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4-643818-2","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"4-643818-2","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/4-643818-2","factsUrl":"https://icsourcedirect.com/api/mcp/products/4-643818-2","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 4-643818-2, 12 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, 20 AWG, tin contact finish 80.0µin, free hanging, locking ramp, yellow.","salesMarkdown":"## 0.156\" pitch IDC receptacle for 20 AWG harness assembly The 0.156\" (3.96mm) pitch is the standard spacing for this series — wide enough to keep the IDC slot geometry forgiving for field termination, tight enough to fit a 12-circuit harness in a compact footprint. The yellow housing includes a closed end and polarizing key, so the connector cannot be mated backwards or allow debris into the contact cavity. ## IDC termination for 20 AWG only — no gauge swap The IDC slot geometry is cut for 20 AWG wire only. The insulation displacement blades pierce the jacket and cold-flow around the conductor — a larger gauge jams the slot and risks incomplete displacement; a smaller gauge leaves the conductor loose in the slot, creating intermittent contact. ## Locking ramp and thick tin for vibration-prone harness runs That thickness matters because the IDC slot displaces the plating during termination; a thin flash would expose the base copper, risking corrosion over time in an unsealed environment. For a harness that sees occasional disconnect-reconnect cycles, the tin surface holds up well — just do not expect gold-grade cycle life beyond a few dozen mates.","metaTitle":"TE Connectivity 4-643818-2 MTA-156 Receptacle, 12 Pos","metaDescription":"TE Connectivity MTA-156 4-643818-2 receptacle, 12 positions, 0.156\" (3.96mm) pitch, IDC termination for 20 AWG wire, tin contacts with 80.0µin plating, yellow","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":"12","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.4300","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.43000","currency":"USD"},{"qty":10,"price":"$1.33300","currency":"USD"},{"qty":25,"price":"$1.28360","currency":"USD"},{"qty":50,"price":"$1.27120","currency":"USD"},{"qty":100,"price":"$1.14720","currency":"USD"},{"qty":250,"price":"$1.10996","currency":"USD"},{"qty":500,"price":"$1.01076","currency":"USD"},{"qty":1000,"price":"$0.90535","currency":"USD"},{"qty":2500,"price":"$0.84334","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/ad26fc9853a9d4a4928ffe54fdc804e3.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/4-643818-2","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/4-643818-2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:25.888Z","lastPublished":"2026-07-20T14:34:25.888Z","indexable":true}}