{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-644457-4","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-644457-4","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-644457-4","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-644457-4","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors MTA-100 series, 3-644457-4: unshrouded header, 4 circuits, 0.100\" (2.54mm) pitch, right-angle through-hole, tin-plated contacts, UL94 V-0 natural housing.","salesMarkdown":"## Right-Angle 4-Pin Header for MTA-100 Wire-to-Board The 3-644457-4: That covers most indoor industrial gear, test equipment, and consumer electronics — anything inside a conditioned enclosure that doesn't see engine-bay heat. Sourced through independent distribution channels. ## How It Compares to Similar Headers That part adds vibration-resistant shrouding and a detent lock — useful if the mating cable sees constant flex or the board is in a high-shock environment. The trade-off is a wider footprint and a different pitch (0.098\" vs 0.100\"), so the board layout is not drop-in compatible. The 953440-3 is an automotive-grade 6-position shrouded header on the same 0.100-inch pitch but with a friction lock and mounting flange. It's rated 12V — fine for a 12V automotive bus, but not for a 250VAC line. The MTA-100 header is a better fit for general-purpose AC applications. ## Mating and Termination Notes Termination is through-hole solder. The 0.110-inch post length is typical for a standard PCB thickness; the 150 µinch tin finish on the post wets well with leaded or lead-free solder. No press-fit or SMT option here — it's a straight solder-and-cut assembly.","metaTitle":"3-644457-4 TE MTA-100 Header 4 Pos 2.54mm Right Angle","metaDescription":"3-644457-4 TE Connectivity MTA-100 unshrouded header, 4 circuits, 0.100\" pitch, right-angle through-hole, tin plating. 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":"Unshrouded","Termination":"Solder","Applications":"General Purpose","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole, Right Angle","Connector Type":"Header","Fastening Type":"-","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":"0.100\\\" (2.54mm)","Ingress Protection":"-","Base Product Number":"644457","Insulation Material":"Thermoplastic","Number of Positions":"4","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.110\\\" (2.79mm)","Current Rating (Amps)":"Varies by Wire Gauge","Operating Temperature":"-55°C~105°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"0.260\\\" (6.60mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"150.0µin (3.81µm)","Contact Finish Thickness - Mating":"150.0µin (3.81µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8600","priceTiers":[{"qty":1,"price":"$0.86000","currency":"USD"},{"qty":10,"price":"$0.75100","currency":"USD"},{"qty":100,"price":"$0.61830","currency":"USD"},{"qty":500,"price":"$0.53764","currency":"USD"},{"qty":1000,"price":"$0.44356","currency":"USD"},{"qty":5000,"price":"$0.38979","currency":"USD"},{"qty":10000,"price":"$0.36291","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/c6d677044909ef2e6cccd287eff89642.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/3-644457-4/alternatives.json"},"ai":{"faq":[{"question":"What is the pitch of 3-644457-4?","answer":"The mating pitch is 0.100 inches (2.54mm), standard for the MTA-100 series."},{"question":"Is 3-644457-4 RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-644457-4","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/3-644457-4 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}}