{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-640428-9","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-640428-9","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-640428-9","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-640428-9","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity MTA-156 IDC receptacle, 9 positions, 0.156\" (3.96mm) pitch, single row, tin contacts, locking ramp, closed-end, free-hanging, 22 AWG, bulk.","salesMarkdown":"## MTA-156 IDC Receptacle, 9 Positions, 0.156\" Pitch The TE Connectivity 3-640428-9 is a 9-position IDC receptacle in the MTA-156 series, terminated to discrete or ribbon cable. The 0.156\" (3.96mm) pitch is the standard spacing for this series, matching the footprint of the mating header pins. The single-row, closed-end housing accepts 22 AWG wire and uses a locking ramp to hold the mated pair together under vibration — a detail that matters when this connector lives in a control cabinet or on a moving assembly. Tin contacts with 80.0µin (2.03µm) plating are rated for cost-sensitive signal-level duty where the connector sees a limited number of mating cycles. The closed-end feature stops the cable from pushing through the back of the housing during IDC termination, which saves a rework step on the harness bench. ## Mating Half and Harness Fit This receptacle mates with the matching MTA-156 pin header — the same 0.156\" pitch, same 9 positions, single row. The locking ramp on the receptacle engages the ramp on the header to prevent accidental unmating. For a complete spare kit, stock both halves or neither; an orphan receptacle on the shelf is dead stock until its header arrives. Wire gauge is fixed at 22 AWG for the IDC termination — the slot width in the insulation displacement contact is sized for that diameter. The connector does not accept 18 AWG wire; the IDC slot will not cut through the thicker insulation reliably.","metaTitle":"TE MTA-156 3-640428-9, 9-Pos IDC Receptacle, 0.156\" Pitch","metaDescription":"TE MTA-156 3-640428-9 9-position IDC receptacle, 0.156\" pitch, tin contacts, locking ramp, closed-end housing. Active production, sourced to order against RFQ.","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":"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":"9","Contact Finish Thickness":"80.0µin (2.03µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8300","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.83000","currency":"USD"},{"qty":10,"price":"$0.79000","currency":"USD"},{"qty":25,"price":"$0.75480","currency":"USD"},{"qty":50,"price":"$0.74420","currency":"USD"},{"qty":100,"price":"$0.65040","currency":"USD"},{"qty":250,"price":"$0.62604","currency":"USD"},{"qty":500,"price":"$0.59126","currency":"USD"},{"qty":1000,"price":"$0.51127","currency":"USD"},{"qty":2500,"price":"$0.47301","currency":"USD"}]},"links":{"datasheetUrl":"https://www.te.com/usa-en/product-3-640428-9.datasheet.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the mating connector for 3-640428-9?","answer":"The 3-640428-9 mates with a 9-position, single-row MTA-156 pin header at the same 0.156\" pitch. The locking ramp on the receptacle engages the ramp on the header for vibration-resistant retention."},{"question":"Where can I buy 3-640428-9 in bulk quantity?","answer":"This part is active and sourced to order against your RFQ. Availability and pricing are confirmed at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"isd-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-640428-9","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/3-640428-9 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:45.458Z","lastPublished":"2026-07-17T19:50:45.458Z","indexable":true}}