{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BUK7E2R3-40E,127","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BUK7E2R3-40E127","canonicalUrl":"https://icboms.com/nxp/BUK7E2R3-40E127","factsUrl":"https://icboms.com/api/mcp/products/BUK7E2R3-40E%2C127","rawCanonicalId":null},"summary":{"shortDescription":"Nexperia BUK7E2R3-40E,127, Automotive AEC-Q101 TrenchMOS™, N-Channel MOSFET, 40V Vdss, 120A Id, 2.3mOhm Rds(on) max, TO-262-3 (I2PAK) through-hole, -55 to 175°C.","salesMarkdown":"## What the 2.3 mOhm Rds(on) means in a 40 V automotive-grade switch The Nexperia BUK7E2R3-40E,127 is a 40 V, 120 A N-channel TrenchMOS™ MOSFET qualified to AEC-Q101 for automotive applications. ## Gate charge and switching — the 109.2 nC number Gate charge (Qg) is specified at 109.2 nC at a 10 V gate drive. That is a moderate figure for a die this size — it tells the gate-driver designer what charge must be delivered per switching cycle. The 8500 pF input capacitance at 25 V drain-source is consistent with a large-area die optimised for low Rds(on). Both numbers factor into the switching loss calculation at the target frequency. ## 175 °C junction temperature — headroom for harsh environments Rated junction temperature spans -55 °C to 175 °C. The 175 °C upper limit is above the typical 150 °C for many trenchFETs, which matters for under-hood automotive, engine-bay, or high-ambient industrial designs where thermal margin is thin. The through-hole I2PAK (TO-262) package with long leads suits bolted-down or wire-connected assemblies where board-level solder joints are not the primary mechanical attachment. ## AEC-Q101 and active production status The part is part of Nexperia's TrenchMOS™ series, a mature, high-volume process family.","metaTitle":"Nexperia BUK7E2R3-40E,127 N-Channel MOSFET, 40V, 120A","metaDescription":"Nexperia BUK7E2R3-40E,127 Automotive AEC-Q101 N-channel TrenchMOS MOSFET. 40V Vdss, 120A Id, 2.3mOhm Rds(on) max at 10V. TO-262 (I2PAK) through-hole.","metaKeywords":null},"attributes":{"series":"Automotive, AEC-Q101, TrenchMOS™","packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Logic ICs"],"specifications":{"Series":"Automotive, AEC-Q101, TrenchMOS™","Package":"Bulk","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-262-3 Long Leads, I²Pak, TO-262AA","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 1mA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"2.3mOhm @ 25A, 10V","Power Dissipation (Max)":"293W (Tc)","Supplier Device Package":"I2PAK","Gate Charge (Qg) (Max) @ Vgs":"109.2 nC @ 10 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"8500 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"120A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.85","stockQuantity":0,"priceTiers":[{"qty":352,"price":"$0.85000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8ccbcac8c27b0a050ae6afea371056ba.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of the BUK7E2R3-40E?","answer":"This is the number to use in worst-case conduction-loss calculations."},{"question":"Is the BUK7E2R3-40E AEC-Q101 qualified?","answer":"Yes, the part is part of Nexperia's Automotive series and is AEC-Q101 qualified, covering the stress qualification requirements for automotive-grade discrete semiconductors."},{"question":"What is the maximum drain current of the BUK7E2R3-40E?","answer":"The continuous drain current is rated at 120 A at a case temperature of 25 °C. At elevated case temperatures the current must be derated according to the thermal derating curve in the datasheet."},{"question":"What package does the BUK7E2R3-40E,127 come in?","answer":"It is supplied in a through-hole TO-262-3 package with long leads, also referred to as I2PAK (TO-262AA). The supplier device package is I2PAK."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BUK7E2R3-40E127","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BUK7E2R3-40E127 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}