{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BUK7508-55A,127","brand":"NXP Semiconductors","brandSlug":"nxp","productSlug":"BUK7508-55A127","canonicalUrl":"https://icboms.com/nxp/BUK7508-55A127","factsUrl":"https://icboms.com/api/mcp/products/BUK7508-55A%2C127","rawCanonicalId":null},"summary":{"shortDescription":"Nexperia BUK7508-55A,127, Automotive AEC-Q101 TrenchMOS N-Channel MOSFET, 55V Vdss, 75A Id, 8mOhm Rds(on) at 10V, TO-220AB, -55 to 175°C.","salesMarkdown":"## 8 mOhm Rds(on) — conduction loss and heatsink sizing At 75 A continuous current, the conduction loss alone reaches 45 W, which the 254 W package dissipation ceiling can handle only with aggressive heatsinking and forced airflow. In practice, most designs will run this part at 30–50 A continuous and rely on the low Rds(on) to keep junction rise under 40 °C above ambient. The 4 V threshold voltage at 1 mA means the device turns on fully with a standard 10 V gate drive; at 5 V gate drive the Rds(on) roughly doubles, so a logic-level driver is not recommended. ## 175 °C junction — under-hood margin and derating The -55 °C to 175 °C operating junction temperature range is the reason this part works in engine-bay and transmission environments. The 175 °C max allows a 40 °C safety margin above a typical 125 °C ambient under the hood, but every degree above 25 °C derates the continuous current and the safe operating area. The 4352 pF input capacitance at 25 V Vds and 76 nC gate charge at 0 V Vgs are moderate — a standard automotive gate driver with 2 A peak current can switch the gate in about 100 ns, but the buyer should verify the driver's sink/source capability against the gate charge curve at the target switching frequency. For a production program that needs a 55 V, 75 A automotive FET in a TO-220AB footprint, this part is available through franchised distribution and independent channels without the allocation risk that sometimes hits high-volume automotive MOSFETs. The AEC-Q101 qualification means the part has passed the full automotive stress test suite (H3TRB, HTRB, TC, etc.), so no separate qualification run is needed for Tier-1 programs.","metaTitle":"Nexperia BUK7508-55A,127 N-Channel MOSFET, 55V 75A TO-220AB","metaDescription":"Nexperia BUK7508-55A,127 automotive AEC-Q101 TrenchMOS N-channel MOSFET, 55V Vdss, 75A Id, 8mOhm Rds(on) at 10V. TO-220AB.","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-220-3","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 1mA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"8mOhm @ 25A, 10V","Power Dissipation (Max)":"254W (Ta)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"76 nC @ 0 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"4352 pF @ 25 V","Current - Continuous Drain (Id) @ 25°C":"75A (Ta)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.93","stockQuantity":0,"priceTiers":[{"qty":325,"price":"$0.93000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/be867f30fb43f5b56bd8c81e7d994b28.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of BUK7508-55A,127?","answer":"The maximum Rds(on) is 8 mOhm at 25 A drain current with 10 V gate drive. At lower gate voltages the resistance increases significantly, so a 10 V rail is recommended for the gate driver."},{"question":"What is the gate charge of BUK7508-55A,127?","answer":"The maximum gate charge is 76 nC at 0 V Vgs. This is a moderate value — a standard automotive gate driver with 2 A peak current can switch the gate in roughly 100 ns, but the buyer should check the driver's peak current capability against the full gate charge curve at the target switching frequency."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/nxp/BUK7508-55A127","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/nxp/BUK7508-55A127 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}}