{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFB7546PBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFB7546PBF","canonicalUrl":"https://icboms.com/infineon/IRFB7546PBF","factsUrl":"https://icboms.com/api/mcp/products/IRFB7546PBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IRFB7546PBF, HEXFET StrongIRFET N-Channel MOSFET, 60V Vdss, 75A Id, 7.3mOhm Rds(on) at 10V, 87nC Qg, TO-220AB through-hole, -55°C to 175°C.","salesMarkdown":"## 7.3 mOhm Rds(on) at 45 A — the conduction-loss anchor The IRFB7546PBF is an Infineon HEXFET in the StrongIRFET series, an N-channel MOSFET rated for 60 V drain-to-source with a continuous drain current of 75 A at 25 °C case temperature. The 7.3 mOhm maximum on-resistance at Vgs=10 V and 45 A sets the conduction loss floor — at 45 A the dissipation is roughly 15 W, which the 99 W package limit can handle with a proper heatsink. The drive voltage range (6 V to 10 V for rated Rds(on)) means it works with 5 V logic through a gate driver, but for the lowest resistance the gate needs the full 10 V rail. ## Gate charge and switching speed Total gate charge is 87 nC at Vgs=10 V, with an input capacitance of 3000 pF at Vds=25 V. For a 100 kHz switching frequency, the average gate-drive current needed is about 8.7 mA — well within a standard MOSFET driver. The 3000 pF Ciss means the driver must supply a peak current of roughly 1.5 A to hit a 50 ns rise time; a weak gate-drive source will stretch the switching edges and increase crossover loss. ## 175 °C junction — motor drive and power supply duty In a motor-drive or DC-DC converter, the 99 W dissipation ceiling at case temperature 25 °C must be derated above that point — a typical TO-220 in still air has an RthJA around 62 °C/W, so without a heatsink the usable power is under 2.5 W at 25 °C ambient. The 3.7 V maximum gate threshold at 100 µA drain current means the device is fully off below 3.7 V, which is a standard logic-level threshold for 5 V systems. ROHS3 compliant. The TO-220AB through-hole package is a standard 3-lead form factor — the same footprint as any TO-220 N-channel, making it a drop-in for existing layouts that use that package.","metaTitle":"IRFB7546PBF HEXFET N-Ch MOSFET, 60V 75A TO-220AB, 7.3mOhm","metaDescription":"IRFB7546PBF N-channel MOSFET, 60V Vdss, 75A continuous drain, 7.3mOhm Rds(on) at 10V. TO-220AB through-hole. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®, StrongIRFET™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®, StrongIRFET™","Package":"Tube","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":"3.7V @ 100µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"7.3mOhm @ 45A, 10V","Power Dissipation (Max)":"99W (Tc)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"87 nC @ 10 V","Drain to Source Voltage (Vdss)":"60 V","Input Capacitance (Ciss) (Max) @ Vds":"3000 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"6V, 10V","Current - Continuous Drain (Id) @ 25°C":"75A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.31","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.31000","currency":"USD"},{"qty":10,"price":"$1.17400","currency":"USD"},{"qty":100,"price":"$0.91540","currency":"USD"},{"qty":500,"price":"$0.75622","currency":"USD"},{"qty":1000,"price":"$0.59702","currency":"USD"},{"qty":2000,"price":"$0.55722","currency":"USD"},{"qty":5000,"price":"$0.52936","currency":"USD"},{"qty":10000,"price":"$0.51915","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/f4313ab70b7c147f0a7feaaf93cc02bc.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is IRFB7546PBF available via RFQ confirmation and what is the lead time for an order?","answer":"No stock-holding claim is made here; the part is sourced per RFQ."},{"question":"What is the closest functional second-source for IRFB7546PBF?","answer":"The IPD50R950CEAUMA1 is a CoolMOS CE N-channel, but it is a 500 V device in a surface-mount package with 950 mOhm Rds(on) — a different voltage class and package, not a pin-compatible second source."},{"question":"Is IRFB7546PBF RoHS compliant?","answer":"Yes, it is ROHS3 compliant per Infineon's classification."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFB7546PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFB7546PBF 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}}