{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"20021121-00004T4LF","brand":"Amphenol","brandSlug":"amphenol","productSlug":"20021121-00004T4LF","canonicalUrl":"https://icsourcedirect.com/amphenol/20021121-00004T4LF","factsUrl":"https://icsourcedirect.com/api/mcp/products/20021121-00004T4LF","rawCanonicalId":null},"summary":{"shortDescription":"Amphenol ICC (FCI) Minitek127® 1.27mm series, 20021121-00004T4LF: unshrouded dual-row SMT header, 4 positions, 0.050\" (1.27 mm) pitch, male square pins, gold mating finish (10 µinch), tin posts, push-pull fastening, UL94 V-0 black thermoplastic housing.","salesMarkdown":"## Board-to-Board Stacking with 1.27 mm Pitch The 20021121-00004T4LF: The SMT termination keeps the profile low for mezzanine or parallel-board stacking where z-height is tight. ## Gold Mating Finish — Signal-Grade, Not High-Cycle The mating contact carries 10 µinch gold over copper alloy, while the solder posts are tin-plated (50 µinch). The 10 µinch gold is a signal-grade finish — adequate for occasional disconnect in a lab or field-service scenario, but not for frequent mating cycles (500+). For a production board that stays mated, the gold prevents corrosion on the contact interface. ## Sourcing and Lifecycle — Active, RoHS, Tube Package This is an unshrouded header — it mates with any Minitek127 1.27 mm pitch receptacle or IDC socket that accepts a 0.050\" row spacing and 0.120\" pin length. The SMT footprint requires a 1.27 mm pitch pad layout in both rows. Confirm the board stack-up and solder paste stencil thickness for the 0.050\" row spacing — the narrow pitch demands careful pad design to avoid bridging.","metaTitle":"20021121-00004T4LF Amphenol ICC Minitek127 1.27mm SMT Header","metaDescription":"20021121-00004T4LF: Amphenol ICC Minitek127 1.27mm pitch, 4-position, dual-row, unshrouded SMT header. Gold-plated mating contacts, tin posts. Active, RoHS.","metaKeywords":null},"attributes":{"series":"Minitek127® 1.27mm","packageCase":null,"mountingType":null,"rohsStatus":"RoHS Compliant","productStatus":"Active","categoryPath":["Pin Headers, Sockets & Housings","Pin Headers"],"specifications":{"Mfr":"Amphenol ICC (FCI)","Style":"Board to Board","Series":"Minitek127® 1.27mm","Package":"Tube","Features":"-","Shrouding":"Unshrouded","Termination":"Solder","Applications":"-","Contact Type":"Male Pin","Contact Shape":"Square","Mounting Type":"Surface Mount","Connector Type":"Header","Fastening Type":"Push-Pull","Number of Rows":"2","Pitch - Mating":"0.050\\\" (1.27mm)","Product Status":"Active","Voltage Rating":"125VAC","lifecycle_stage":"unknown","Contact Material":"Copper Alloy","Insulation Color":"Black","Insulation Height":"-","Ingress Protection":"-","Base Product Number":"20021121","Insulation Material":"Thermoplastic","Number of Positions":"4","Row Spacing - Mating":"0.050\\\" (1.27mm)","Contact Finish - Post":"Tin","Contact Length - Post":"-","Current Rating (Amps)":"1A per Contact","Operating Temperature":"-55°C~125°C","Mated Stacking Heights":"-","Overall Contact Length":"-","Contact Finish - Mating":"Gold","Contact Length - Mating":"0.120\\\" (3.05mm)","Number of Positions Loaded":"All","Material Flammability Rating":"UL94 V-0","Contact Finish Thickness - Post":"50.0µin (1.27µm)","Contact Finish Thickness - Mating":"10.0µin (0.25µm)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5600","priceTiers":[{"qty":1,"price":"$0.56000","currency":"USD"},{"qty":10,"price":"$0.49100","currency":"USD"},{"qty":100,"price":"$0.40440","currency":"USD"},{"qty":500,"price":"$0.35168","currency":"USD"},{"qty":1000,"price":"$0.29014","currency":"USD"},{"qty":5000,"price":"$0.25497","currency":"USD"},{"qty":10000,"price":"$0.23739","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/aa9c68817be3ae7d0bc70e4914139954.pdf","sourceUrl":null,"alternativesUrl":"https://icsourcedirect.com/api/mcp/products/20021121-00004T4LF/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between 20021121-00004T4LF and 20021121-00004T1LF?","answer":"Both are 4-position, dual-row, 1.27 mm pitch SMT headers with identical dimensions and ratings. The T4LF has 10 µinch gold on the mating contacts; the T1LF uses flash gold (no measurable thickness). The T4LF is the better choice if the connector will be mated and unmated repeatedly in the field."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/amphenol/20021121-00004T4LF","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/amphenol/20021121-00004T4LF 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}}