{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1971921-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1971921-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1971921-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/1971921-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity AMP, 1971921-3, Board to Cable/Wire header, single-row, 3 positions (2 loaded), 2.50mm pitch, shrouded 4-wall, locking ramp, through-hole solder, tin-plated contacts, UL94 V-0, glow wire compliant.","salesMarkdown":"## Pitch and footprint — why 2.50mm matters for your board The 1971921-3: The single-row 3-position layout, with 2 positions loaded, means the board footprint has three through-holes but only two carry a contact; the empty position is a placeholder for future expansion or a keying slot. ## Shrouded and locked — vibration-proof mate For a harness routed near a motor or in a portable appliance, this latch prevents intermittent contact from cable tug. ## Glow wire compliance — appliance safety gate Glow wire compliant means the housing material passes the glow-wire test — a requirement for household appliances, lighting, and HVAC controls. ## Thermal range and plating — field-service reality Operating from -40°C to 120°C covers automotive under-hood and industrial cabinet environments. Tin-on-tin interfaces are reliable when the connector is mated and left alone; repeated wipe can wear the plating and increase contact resistance.","metaTitle":"1971921-3 TE Connectivity Header, 2.50mm Pitch, 3 Pos","metaDescription":"TE Connectivity AMP 1971921-3 header, 2.50mm pitch, 3 positions (2 loaded), shrouded, locking ramp, glow wire compliant, UL94 V-0. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Style":"Board to Cable/Wire","Series":"-","Package":"Tube","Features":"Board Guide, Glow Wire Compliant","Shrouding":"Shrouded - 4 Wall","Termination":"Solder","Applications":"General Purpose","Contact Type":"Tab","Contact Shape":"Rectangular","Mounting Type":"Through Hole","Connector Type":"Header","Fastening Type":"Locking Ramp","Number of Rows":"1","Pitch - Mating":"0.098\\\" (2.50mm)","Product Status":"Active","Voltage Rating":"-","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Natural","Insulation Height":"0.610\\\" (15.49mm)","Ingress Protection":"-","Base Product Number":"1971921","Insulation Material":"Polyamide (PA), Nylon","Number of Positions":"3","Row Spacing - Mating":"-","Contact Finish - Post":"Tin","Contact Length - Post":"0.114\\\" (2.90mm)","Current Rating (Amps)":"-","Operating Temperature":"-40°C~120°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Tin","Contact Length - Mating":"-","Number of Positions Loaded":"2","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"-","Contact Finish Thickness - Mating":"-"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3209","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/f86b6629052c3ac0d0f245855627610a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What receptacle mates with TE 1971921-3?","answer":"This header mates with a 2.50mm pitch single-row receptacle housing that accepts tab contacts. Typical mating parts are TE Economy Power (EP) series receptacles (e.g., 1-1971921-x) or AMPMODU MTE series. Confirm the circuit count and keying before ordering."},{"question":"What is the pin pitch of TE 1971921-3?","answer":"The pitch is 0.098\" (2.50mm) between adjacent pin centers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1971921-3","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/1971921-3 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}}