{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFB7446GPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFB7446GPBF","canonicalUrl":"https://icboms.com/infineon/IRFB7446GPBF","factsUrl":"https://icboms.com/api/mcp/products/IRFB7446GPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies HEXFET®, StrongIRFET™ N-Channel MOSFET, IRFB7446GPBF, 40 V, 120 A, 3.3 mOhm, TO-220, Through Hole, Bulk.","salesMarkdown":"## Key switching parametrics for the fit decision The IRFB7446GPBF: This is an N-channel MOSFET rated for 40 V drain-source and 120 A continuous switching current. The max Rds(on) is 3.3 mOhm at 70 A and 10 V gate drive — that low on-resistance keeps conduction losses down in high-current paths like motor drives or power supplies. Gate charge is 93 nC max at 10 V, and input capacitance is 3.2 nF. The gate drive requirement is modest for a 120 A device — a standard 1 A gate driver can switch it at moderate frequencies without excessive cross-conduction. Maximum power dissipation is 99 W, and the gate threshold voltage is 3.9 V at 100 µA drain current. The ±20 V gate-source rating gives headroom for gate-drive overshoot in noisy environments. ## Package and mounting — field-service perspective Housed in a TO-220 through-hole package, supplied in bulk. The three-lead layout is standard — gate, drain, and source are clearly marked on the body, and the tab is drain. No special orientation ambiguity; a tech with a soldering iron and a heatsink can swap it on site without a rework station. Part of the HEXFET and StrongIRFET series — Infineon's trench-gate MOSFET family optimised for low Rds(on) and rugged avalanche capability.","metaTitle":"IRFB7446GPBF Infineon N-Channel MOSFET, 40V 120A TO-220","metaDescription":"IRFB7446GPBF N-channel MOSFET, 40V, 120A, 3.3mOhm Rds(on). Active production. Quoted to order. Request RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®, StrongIRFET™","power_w":"99.0","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Through Hole","capacitance_uf":"0.0032","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"40.0","Vgs(Th) (Max) @ Id":"3.9 V @ 100µA","switching_current_a":"120.0","Rds On (Max) @ Id, Vgs":"3.3mOhm @ 70 A, 10 V","Gate Charge (Qg) (Max) @ Vgs":"93 nC @ 10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.73","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2270ab331972f0c140a0935d2d8b9233.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What series does the IRFB7446GPBF belong to?","answer":"It is part of the HEXFET and StrongIRFET series from Infineon."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFB7446GPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFB7446GPBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}