{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1776253-3","brand":"TE Connectivity AMP Connectors","brandSlug":"te-connectivity-amp-connectors","productSlug":"1776253-3","canonicalUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1776253-3","factsUrl":"https://icsourcedirect.com/api/mcp/products/1776253-3","rawCanonicalId":null},"summary":{"shortDescription":"TE Connectivity Buchanan 1776253-3, 3-position PCB terminal block, 3.50mm pitch, 7 A, 250 V, through-hole, screw rising cage clamp, top entry, blue housing.","salesMarkdown":"The block is a single-level, top-entry design, meaning the wire enters perpendicular to the PCB surface, which suits enclosures where the board sits flat and the wiring drops in from above. Rated 7 A at 250 V. Accepts 18-26 AWG wire. That temperature range covers both unheated storage and the inside of a sealed industrial enclosure where ambient heat from nearby drives or transformers can push cabinet air well above room temperature. ## Termination and Wiring — What the Screw Clamp Expects The wire termination is a screw-driven rising cage clamp — turning the M2.6 screw lifts a stainless steel clamp plate that presses the wire against the current bar. This is a standard industrial terminal block termination: it accepts both solid and stranded wire without requiring a ferrule, though ferruled stranded wire gives a cleaner insertion in multi-strand bundles. The clamp material is steel, stainless; the screw is steel, galvanized with chromate plating — the galvanizing resists corrosion in humid cabinet environments. The contact itself is brass with tin plating — adequate for the 7 A rating and the moderate mating cycle count of a fixed terminal block (the wire is clamped once and left in place). Tin plating is the standard choice for stationary terminations where repeated disconnect-reconnect cycles are not expected. No official cross-reference or second-source equivalent is recorded; the Buchanan series is TE Connectivity's own design, so a direct drop-in substitute from another manufacturer is not documented.","metaTitle":"TE Connectivity 1776253-3 Buchanan Terminal Block","metaDescription":"TE Connectivity 1776253-3 Buchanan PCB terminal block, 3 positions, 3.50mm pitch, 7 A, 250 V, screw rising cage clamp, ROHS3 compliant. Available to order.","metaKeywords":null},"attributes":{"series":"Buchanan","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Wire-to-Board Connectors","Wire-to-Board Headers"],"specifications":{"Mfr":"TE Connectivity AMP Connectors","Color":"Blue","Pitch":"0.138\\\" (3.50mm)","Series":"Buchanan","Current":"7 A","Package":"Bulk","Voltage":"250 V","Features":"-","Wire Gauge":"18-26 AWG","Screw Thread":"M2.6","Mounting Type":"Through Hole","Product Status":"Active","Torque - Screw":"0.4 Nm (3.5 Lb-In)","lifecycle_stage":"unknown","Housing Material":"Polyamide (PA66), Nylon 6/6","Number of Levels":"1","Wire Termination":"Screw - Rising Cage Clamp","Mating Orientation":"Vertical with Board","Base Product Number":"1776253","Positions Per Level":"3","Operating Temperature":"-55°C ~ 105°C","Clamp Material - Plating":"Steel, Stainless","Screw Material - Plating":"Steel, Galvanized - Chromate Plated","Contact Material - Plating":"Brass - Tin Plated"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8200","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$0.82000","currency":"USD"},{"qty":10,"price":"$0.77900","currency":"USD"},{"qty":25,"price":"$0.74440","currency":"USD"},{"qty":50,"price":"$0.73400","currency":"USD"},{"qty":100,"price":"$0.64140","currency":"USD"},{"qty":250,"price":"$0.61744","currency":"USD"},{"qty":500,"price":"$0.58312","currency":"USD"},{"qty":1000,"price":"$0.50423","currency":"USD"},{"qty":5000,"price":"$0.43220","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icsourcedirect.com/2589d2884a37f1c03985e433f0895887.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is 1776253-3 RoHS compliant?","answer":"Yes, the 1776253-3 is ROHS3 compliant per TE Connectivity's listing."},{"question":"What wire range does 1776253-3 support?","answer":"The terminal block accepts 18-26 AWG wire, terminated with a screw-driven rising cage clamp."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icsourcedirect.com/te-connectivity-amp-connectors/1776253-3","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/1776253-3 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}}