{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-643820-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-643820-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643820-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-643820-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 3-643820-4, 4 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, tin contacts, free hanging, locking ramp.","salesMarkdown":"## 4-Position IDC Receptacle for MTA-156 Harness Builds The closed-end design means the housing has no pass-through for wires — the cable is terminated at the back face, which is typical for IDC terminations in harness assemblies. The white color aids visual identification in multi-wire bundles. ## IDC Termination and Wire Gauge This receptacle uses insulation displacement contacts (IDC) rated for 24 AWG wire. The IDC slot pierces the insulation on insertion, making gas-tight connection without stripping or crimping. It accepts both discrete wire and ribbon cable, which suits automated harness production where consistent wire gauge is maintained. That is a heavy tin plate — more than enough for a few mating cycles in a permanent or semi-permanent installation. Tin is the economical choice when the connector is not cycled frequently; for applications requiring hundreds of matings, a gold-plated sibling would be the better fit. The polarizing key ensures the receptacle can only be mated in the correct orientation — important in blind-mate or multi-connector harness assemblies where reversed mating could damage contacts or create shorts. As a female socket receptacle, it mates with the male pin headers in the MTA-156 family.","metaTitle":"TE MTA-156 3-643820-4 Receptacle, 4 Pos, 0.156\" Pitch","metaDescription":"TE Connectivity MTA-156 receptacle, 4 positions, 0.156\" (3.96mm) pitch. IDC termination for 24 AWG wire. Tin contacts with 80µ\" plating.","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":"White","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End, Polarizing Key","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"24 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":"643820","Number of Positions":"4","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5300","priceTiers":[{"qty":1,"price":"$0.53000","currency":"USD"},{"qty":10,"price":"$0.49300","currency":"USD"},{"qty":25,"price":"$0.49120","currency":"USD"},{"qty":50,"price":"$0.47880","currency":"USD"},{"qty":100,"price":"$0.41070","currency":"USD"},{"qty":250,"price":"$0.37148","currency":"USD"},{"qty":500,"price":"$0.35084","currency":"USD"},{"qty":1000,"price":"$0.30750","currency":"USD"},{"qty":2500,"price":"$0.30337","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2708a7a0a33101844e4835986a84335a.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/3-643820-4/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of 3-643820-4?","answer":"The pitch is 0.156\" (3.96mm), which is the standard spacing for the MTA-156 series and defines the header footprint it mates with."},{"question":"What wire gauge works with 3-643820-4?","answer":"The IDC termination is rated for 24 AWG wire. Using a different gauge risks poor insulation displacement or loose contact retention."},{"question":"Where can I buy 3-643820-4?","answer":"This part is sourced to order against your BOM quantity. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-643820-4","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/3-643820-4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:52:26.615Z","lastPublished":"2026-08-11T15:52:26.615Z","indexable":true}}