{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-640428-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-640428-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-640428-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-640428-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 receptacle, 3-640428-4, 4 positions, 1 row, 0.156\" (3.96mm) pitch, IDC termination, tin-plated female socket, free-hanging, locking ramp, closed end, red housing.","salesMarkdown":"## MTA-156 4-Position IDC Receptacle for Discrete or Ribbon Cable The 3-640428-4: The 0.156\" (3.96mm) pitch is wider than the common 0.100\" IDC standard, which makes the wire-to-wire spacing more forgiving during harness assembly and reduces the risk of adjacent wire shorting in high-vibration environments. The housing is red and features a closed end, meaning one side of the connector is walled off to provide a positive stop for the cable and prevent over-insertion. ## IDC Termination and Field Installation For discrete wires, a simple hand tool or arbor press works; for ribbon cable, the connector can be mass-terminated in one stroke. The closed end acts as a cable stop, so the wire bundle sits flush against the back wall of the housing, which helps with strain relief in the harness. The 1-row, 4-position layout is keyed by the closed end — the header must be oriented so the open side aligns with the receptacle's open side. No secondary lock or TPA is used; the IDC termination and the locking ramp are the only retention features. For a 4-circuit harness, this is a straightforward mate — no polarisation keys or colour coding beyond the red housing.","metaTitle":"TE MTA-156 3-640428-4, 4-Position IDC Receptacle","metaDescription":"TE Connectivity MTA-156 3-640428-4 4-position IDC receptacle, 0.156\" (3.96mm) pitch, tin-plated contacts, closed-end housing, RoHS compliant. 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":"Red","Pitch":"0.156\\\" (3.96mm)","Series":"MTA-156","Package":"Bulk","Features":"Closed End","Wire Type":"Discrete or Ribbon Cable","Wire Gauge":"22 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":"640428","Number of Positions":"4","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.47000","currency":"USD"},{"qty":10,"price":"$0.44400","currency":"USD"},{"qty":25,"price":"$0.44200","currency":"USD"},{"qty":50,"price":"$0.43100","currency":"USD"},{"qty":100,"price":"$0.36970","currency":"USD"},{"qty":250,"price":"$0.33436","currency":"USD"},{"qty":500,"price":"$0.31580","currency":"USD"},{"qty":1000,"price":"$0.27678","currency":"USD"},{"qty":2500,"price":"$0.27307","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What is the mating connector for 3-640428-4?","answer":"The 3-640428-4 mates with a TE MTA-156 header of the same 0.156\" pitch and 4-position count. The header has male pins and a locking ramp that engages with the receptacle's ramp. The closed end of the receptacle provides keying so the orientation is fixed."},{"question":"Is 3-640428-4 RoHS compliant?","answer":"Yes, the 3-640428-4 is listed as RoHS compliant by TE Connectivity."},{"question":"What wire gauge does 3-640428-4 support?","answer":"The 3-640428-4 is specified for 22 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/3-640428-4","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/3-640428-4 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}}