{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF3808PBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF3808PBF","canonicalUrl":"https://icboms.com/infineon/IRF3808PBF","factsUrl":"https://icboms.com/api/mcp/products/IRF3808PBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET IRF3808PBF, N-Channel MOSFET, 75V Vdss, 140A Id, 7mOhm Rds(on) max @ 82A, 10V, TO-220AB package, -55°C to 175°C junction temperature.","salesMarkdown":"## What the gate charge and capacitance mean for the driver Total gate charge is 220 nC at 10 V, with an input capacitance of 5310 pF at 25 V drain-source. For a 100 kHz switching frequency, the average gate-drive current needed is 22 mA — a standard gate-driver IC handles that, but the peak current during the Miller plateau determines the switching speed. The 220 nC figure also sets the gate-drive power loss: at 100 kHz, the driver dissipates about 220 mW just charging and discharging the gate, which matters for the driver's thermal budget. ## Temperature range and the real current limit Junction temperature range is -55°C to 175°C, with a maximum power dissipation of 330 W at the case. The 140 A continuous rating is at 25°C case temperature — in a real board with a heatsink, the allowable current derates as the junction rises. At 100°C case temperature, the current capability drops to roughly 100 A, depending on the thermal resistance of the mounting interface. The 175°C maximum junction lets the part survive overload conditions that would kill a 150°C-rated MOSFET, but continuous operation near that ceiling requires a substantial heatsink and forced airflow. ## Active production — no LTB scramble on this BOM line For a repair bench or a production BOM, this means the part can be sourced through standard distribution without worrying about a looming obsolescence window. The TO-220AB package is a common footprint, so second-sourcing from other manufacturers with compatible pinouts is straightforward if dual-source security is needed.","metaTitle":"IRF3808PBF MOSFET, N-Channel 75V 140A TO-220AB","metaDescription":"IRF3808PBF HEXFET N-channel MOSFET, 75V Vdss, 140A Id, 7mOhm Rds(on) at 82A. TO-220AB package. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","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":"4V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"7mOhm @ 82A, 10V","Power Dissipation (Max)":"330W (Tc)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"220 nC @ 10 V","Drain to Source Voltage (Vdss)":"75 V","Input Capacitance (Ciss) (Max) @ Vds":"5310 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"140A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.18000","currency":"USD"},{"qty":10,"price":"$2.85300","currency":"USD"},{"qty":100,"price":"$2.29320","currency":"USD"},{"qty":500,"price":"$1.88412","currency":"USD"},{"qty":1000,"price":"$1.57010","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/96f3de1be2ac46ffca1e9643bd985436.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF3808PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF3808PBF 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}}