{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"3-644894-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"3-644894-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-644894-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/3-644894-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors CST-100 series, 3-644894-3, Board to Cable/Wire, Shrouded - 4 Wall, Solder, Through Hole, Right Angle, 3 Positions, 0.100\" (2.54mm) Pitch, Tin Contacts, 250VAC, UL94 V-0, Black Polyester Housing","salesMarkdown":"## Right-angle header for board-edge wiring The 3-644894-3 is a 3-position, single-row header from TE's CST-100 series, designed for board-to-cable/wire connections. The shrouded 4-wall design protects the male pins during mating and unmating, reducing the risk of bent contacts. A friction lock provides positive retention against vibration without requiring a secondary latch or tool. The UL94 V-0 polyester housing meets flame-retardant requirements for equipment inside an enclosure. ## Tin plating and current rating — what to expect Both the mating contact finish and the post finish are tin. Tin is cost-effective for moderate mating cycles (typically 50-100 cycles) and non-corrosive environments; it is not recommended for frequent field-service reconnects or outdoor exposure without additional sealing. Current rating is listed as varying by wire gauge — the actual ampacity depends on the attached wire size and ambient temperature. For a typical 22-24 AWG wire in a 25°C ambient, expect 3-4 A per contact; always derate per the application's thermal profile. The 3-644894-3 offers a simpler single-row layout at the standard 0.100-inch pitch, while the sibling adds a second row and a different locking mechanism — useful if you need more circuits in a similar footprint.","metaTitle":"3-644894-3 TE Connectivity CST-100 Header, 3-Pin, 2.54mm","metaDescription":"3-644894-3 TE Connectivity CST-100 shrouded header, 3 positions, 0.100\" pitch, right-angle through-hole, tin contacts, friction lock. Active production.","metaKeywords":null},"attributes":{"series":"CST-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":"CST-100","Package":"Bulk","Features":"-","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"General Purpose, Lighting","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Through Hole, Right Angle","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":"Black","Insulation Height":"0.313\\\" (7.95mm)","Ingress Protection":"-","Base Product Number":"644894","Insulation Material":"Polyester","Number of Positions":"3","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.130\\\" (3.30mm)","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":"0.280\\\" (7.11mm)","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":"$1.3700","priceTiers":[{"qty":1,"price":"$1.37000","currency":"USD"},{"qty":10,"price":"$1.27700","currency":"USD"},{"qty":100,"price":"$1.09880","currency":"USD"},{"qty":500,"price":"$0.96810","currency":"USD"},{"qty":1000,"price":"$0.86714","currency":"USD"},{"qty":5000,"price":"$0.78399","currency":"USD"},{"qty":10000,"price":"$0.73506","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/3-644894-3/alternatives.json"},"ai":{"faq":[{"question":"What is the pinout of the 3-644894-3 header?","answer":"The header has 3 positions in a single row, all loaded. The pinout follows the standard 0.100-inch grid; the mating half is a CST-100 series receptacle with friction lock. No specific pin assignment is defined — it depends on your circuit design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/3-644894-3","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/3-644894-3 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}}