{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"643431-1","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"643431-1","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/643431-1","factsUrl":"https://icsourcedirect.com/api/mcp/products/643431-1","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors MTA-100 header, 643431-1, 4 positions (3 loaded), single row, 0.100\" (2.54mm) pitch, through-hole solder, shrouded - 1 wall, friction lock, tin-plated contacts, UL94 V-0.","salesMarkdown":"## Board-to-Wire Header for MTA-100 Harnesses The 643431-1: With 4 positions but only 3 loaded, this header may be used for keying or polarity alignment — verify the mating receptacle's pinout before committing the BOM line. The friction lock provides vibration-resistant retention during mating, typical for wire-to-board interconnects in general-purpose equipment where the cable sees occasional flex. ## Sizing the PCB Footprint and Mating Half Mates with standard MTA-100 crimp-socket receptacles (e.g., 640441 series) that accept 22-26 AWG wire. The single-wall shrouding provides basic pin protection during handling; it does not fully enclose the contacts, so the header should be positioned away from board edges where side-loading could damage pins. RoHS3 compliant.","metaTitle":"643431-1 TE Connectivity MTA-100 Header 4 Pos 2.54mm Pitch","metaDescription":"643431-1 TE Connectivity MTA-100 header, 4 positions (3 loaded), 0.100\" pitch, friction lock, tin plating, UL94 V-0. Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":"MTA-100","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Board to Cable/Wire","Series":"MTA-100","Package":"Bulk","Features":"-","Shrouding":"Shrouded - 1 Wall","Termination":"Solder","Applications":"General Purpose","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole","Connector Type":"Header","Fastening Type":"Friction Lock","Number of Rows":"1","Pitch - Mating":"0.100\\\" (2.54mm)","Product Status":"Active","Voltage Rating":"250VAC","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.305\\\" (7.75mm)","Ingress Protection":"-","Base Product Number":"643431","Insulation Material":"Thermoplastic","Number of Positions":"4","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.140\\\" (3.56mm)","Current Rating (Amps)":"Varies by Wire Gauge","Operating Temperature":"-55°C~105°C","Mated Stacking Heights":"-","Overall Contact Length":"0.535\\\" (13.59mm)","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.295\\\" (7.49mm)","Number of Positions Loaded":"3","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7700","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.77000","currency":"USD"},{"qty":10,"price":"$0.66800","currency":"USD"},{"qty":100,"price":"$0.55110","currency":"USD"},{"qty":500,"price":"$0.47918","currency":"USD"},{"qty":1000,"price":"$0.39533","currency":"USD"},{"qty":5000,"price":"$0.34741","currency":"USD"},{"qty":10000,"price":"$0.32345","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/92df47f787a19aa8429ab1e4a6f3ef6e.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/643431-1","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/643431-1 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}}