{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BUK954R4-40B127","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BUK954R4-40B127","canonicalUrl":"https://icboms.com/nxp/BUK954R4-40B127","factsUrl":"https://icboms.com/api/mcp/products/BUK954R4-40B127","rawCanonicalId":null},"summary":{"shortDescription":"NXP TrenchMOS™ N-Channel MOSFET, BUK954R4-40B127, 40 Vdss, 4 mOhm Rds(on) @ 10V, 75A Id, TO-220AB, -55°C to 175°C.","salesMarkdown":"## What this MOSFET brings to your power stage The NXP BUK954R4-40B127 is a TrenchMOS N-channel power MOSFET in a TO-220AB through-hole package, rated for 40 V drain-to-source and 75 A continuous drain current at 25 °C case temperature. The headline on-resistance is 4 mOhm maximum at 10 V gate drive and 25 A. Gate charge is 64 nC at 5 V, and the input capacitance sits at 7124 pF at 25 V drain-source — numbers that tell the gate-driver designer what to budget for switching losses and transition time. The drive voltage range (4.5 V to 10 V for rated Rds(on)) gives flexibility: a 5 V logic-level gate signal will turn it on hard enough for moderate currents, but 10 V is needed to hit the minimum on-resistance. That is the first check a procurement buyer makes: no last-time-buy scramble, no forced redesign.","metaTitle":"BUK954R4-40B127 N-Channel MOSFET, 40V, 4mOhm","metaDescription":"NXP TrenchMOS N-channel MOSFET, 40V drain-source, 4mOhm Rds(on) @ 10V, 75A continuous drain, TO-220AB. Active lifecycle.","metaKeywords":null},"attributes":{"series":"TrenchMOS™","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":[],"specifications":{"Series":"TrenchMOS™","Package":"Bulk","FET Type":"N-Channel","Vgs (Max)":"±15V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2V @ 1mA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"4mOhm @ 25A, 10V","Power Dissipation (Max)":"254W (Tc)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"64 nC @ 5 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"7124 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"75A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.67","priceTiers":[{"qty":451,"price":"$0.67000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fd3c235705a729a43754f73a1c330553.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BUK954R4-40B127/alternatives.json"},"ai":{"faq":[{"question":"What are the Vgs(th) and Rds(on) of the BUK954R4-40B127?","answer":"The maximum gate threshold voltage is 2 V at 1 mA drain current. The maximum on-resistance is 4 mOhm at 10 V gate drive and 25 A drain current."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BUK954R4-40B127","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BUK954R4-40B127 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}