{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"640445-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"640445-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/640445-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/640445-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP MTA-156 header, 640445-4, 4 circuits, 3.96mm pitch, single row, shrouded 1 wall, tin-plated male pins, friction lock, through-hole solder termination, UL94 V-0, RoHS.","salesMarkdown":"## Board footprint and pinout for the 4-circuit MTA-156 header The 640445-4 is a 4-position, single-row header on 3.96mm pitch — the board footprint is a straight line of four 0.125\" (3.18mm) solder posts, through-hole mounted. The 0.400\" (10.16mm) mating pin length engages fully with the MTA-156 receptacle before the friction lock snaps. The 600VAC rating covers 480V line-voltage control panels with margin. The single-wall shroud guides the receptacle onto the pins but leaves the top of the contact row exposed — this is a cost-reduced shroud design for applications where full enclosure isn't needed. ## Mating half and assembly BOM This header mates with the MTA-156 receptacle housing (e.g., TE 640550-4) and requires the matching crimp contacts — typically TE 350079-1 (tin, 18-24 AWG) or 350079-2 (tin, 26-30 AWG). Build-to-print needs both halves and the contacts — the header alone is only half the BOM.","metaTitle":"640445-4 TE Connectivity Header, 4 Pos, 3.96mm, Tin","metaDescription":"640445-4 TE Connectivity AMP MTA-156 header, 4 circuits, 3.96mm pitch, tin-plated, friction lock, UL94 V-0, RoHS. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"MTA-156","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Board to Cable/Wire","Series":"MTA-156","Package":"Bulk","Features":"-","Shrouding":"Shrouded - 1 Wall","Termination":"Solder","Applications":"General Purpose, Industrial","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole","Connector Type":"Header","Fastening Type":"Friction Lock","Number of Rows":"1","Pitch - Mating":"0.156\\\" (3.96mm)","Product Status":"Active","Voltage Rating":"600VAC","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.425\\\" (10.80mm)","Ingress Protection":"-","Base Product Number":"640445","Insulation Material":"Thermoplastic, Glass Filled","Number of Positions":"4","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.125\\\" (3.18mm)","Current Rating (Amps)":"Varies by Wire Gauge","Operating Temperature":"-55°C ~ 105°C","Mated Stacking Heights":"-","Overall Contact Length":"0.650\\\" (16.51mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.400\\\" (10.16mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.2700","priceTiers":[{"qty":1,"price":"$0.27000","currency":"USD"},{"qty":10,"price":"$0.23500","currency":"USD"},{"qty":100,"price":"$0.21390","currency":"USD"},{"qty":500,"price":"$0.16606","currency":"USD"},{"qty":1000,"price":"$0.15435","currency":"USD"},{"qty":5000,"price":"$0.13676","currency":"USD"},{"qty":10000,"price":"$0.12113","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/640445-4/alternatives.json"},"ai":{"faq":[{"question":"Is the 640445-4 header RoHS compliant?","answer":"Yes, the 640445-4 is RoHS compliant."},{"question":"What is the pinout and contact arrangement of TE Connectivity 640445-4?","answer":"The 640445-4 is a 4-position, single-row header with all positions loaded. The contacts are male square pins on 3.96mm pitch."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/640445-4","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/640445-4 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}}