{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"4-175643-2","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"4-175643-2","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/4-175643-2","factsUrl":"https://icsourcedirect.com/api/mcp/products/4-175643-2","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP Connectors Fine Pitch series header, 4-175643-2, 12 positions, 1.25mm pitch, shrouded 4-wall, surface mount, male pin, 0.5A per contact, 50V, UL94 V-0.","salesMarkdown":"## Board-fit and footprint decisions The 4-175643-2: The 4-wall shroud protects the male pins during mating and prevents bent pins in a production environment where the connector is plugged and unplugged repeatedly. Surface-mount termination suits automated pick-and-place assembly. The board guide helps align the header during reflow, reducing tombstoning risk on a fine-pitch part. ## Where the 0.5A rating sets the boundary At 0.5A per contact, the temperature rise stays within the housing material limit of the polyphenylene sulfide (PPS) insulator. PPS handles the 105°C upper operating limit without creep or deformation, but the current ceiling is the real constraint — this header is for logic-level signals, not for driving relays or LEDs directly. The tin-on-tin contact finish (mating and post) is rated for a moderate number of mating cycles — adequate for board-to-board interconnects in equipment that sees occasional service, not for daily field disconnect.","metaTitle":"4-175643-2 TE Connectivity 1.25mm Pitch 12-Pin SMT Header","metaDescription":"TE Connectivity AMP Connectors 4-175643-2 Fine Pitch series header, 12 positions, 1.25mm pitch, shrouded 4-wall, SMT, 0.5A, 50V, UL94 V-0. Active production.","metaKeywords":null},"attributes":{"series":"Fine Pitch","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 Board","Series":"Fine Pitch","Package":"Tube","Features":"Board Guide","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Circular","Mounting Type":"Surface Mount","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"2","Pitch - Mating":"0.049\\\" (1.25mm)","Product Status":"Active","Voltage Rating":"50V","lifecycle_stage":"unknown","Contact Material":"Brass","Insulation Color":"Black","Insulation Height":"0.156\\\" (3.96mm)","Ingress Protection":"-","Base Product Number":"175643","Insulation Material":"Polyphenylene Sulfide (PPS)","Number of Positions":"12","Row Spacing - Mating":"0.049\\\" (1.25mm)","Contact Finish - Post":"Tin","Contact Length - Post":"-","Current Rating (Amps)":"0.5A","Operating Temperature":"-30°C ~ 105°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"-","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":"$1.1100","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.11000","currency":"USD"},{"qty":10,"price":"$1.03800","currency":"USD"},{"qty":100,"price":"$0.89320","currency":"USD"},{"qty":500,"price":"$0.78696","currency":"USD"},{"qty":1000,"price":"$0.70489","currency":"USD"},{"qty":5000,"price":"$0.63730","currency":"USD"},{"qty":10000,"price":"$0.57936","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/fcd57e0c1866d39bfe254aa6186d2048.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/4-175643-2","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/4-175643-2 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}}