{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF3805STRLPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF3805STRLPBF","canonicalUrl":"https://icboms.com/infineon/IRF3805STRLPBF","factsUrl":"https://icboms.com/api/mcp/products/IRF3805STRLPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET N-Channel MOSFET, IRF3805STRLPBF, 55 V Vdss, 75 A continuous drain, 3.3 mOhm Rds(on) at 10 V, D2PAK surface mount, -55°C to 175°C junction temperature.","salesMarkdown":"## 3.3 mOhm at 75 A — the conduction-loss floor The headline figure is the 3.3 mOhm maximum on-resistance at Vgs=10 V and 75 A — this sets the conduction-loss floor for a high-current switching stage. At 75 A, I²R losses sit at roughly 18.6 W, which the 300 W package dissipation can handle with adequate heatsinking. ## 290 nC gate charge — driver selection matters Gate charge totals 290 nC at Vgs=10 V. That is a heavy load for a gate driver — expect to budget a driver capable of sourcing at least 2 A peak to keep switching transitions under 150 ns. The 7960 pF input capacitance at Vds=25 V reinforces the same point: the driver sees a large capacitive load, and rise/fall times will be dominated by the driver's current capability. ## D2PAK footprint and thermal path Surface-mount in the TO-263-3 (D²Pak) package, the tab is the drain terminal and the primary thermal path. The 300 W dissipation rating assumes the tab is soldered to a copper plane of adequate area — a 1 oz copper pad of at least 25 mm x 25 mm on a 2-layer board gets you into the 40-50 °C/W RthJA range. The ±20 V maximum gate-source rating is generous, but the 4 V threshold at 250 µA means a 10 V gate drive is needed to achieve the rated Rds(on).","metaTitle":"IRF3805STRLPBF N-Channel MOSFET, 55V 75A D2PAK, 3.3 mOhm","metaDescription":"IRF3805STRLPBF HEXFET N-Channel MOSFET, 55V Vdss, 75A continuous drain, 3.3 mOhm Rds(on) at 10V. D2PAK surface mount. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"3.3mOhm @ 75A, 10V","Power Dissipation (Max)":"300W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"290 nC @ 10 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"7960 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"75A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.26","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.26000","currency":"USD"},{"qty":10,"price":"$3.57500","currency":"USD"},{"qty":100,"price":"$2.89230","currency":"USD"},{"qty":800,"price":"$2.57090","currency":"USD"},{"qty":1600,"price":"$2.20133","currency":"USD"},{"qty":2400,"price":"$2.07278","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/71cb38cfa101a0e3a2fc830e566872a1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between IRF3805STRLPBF and IRF3805PBF?","answer":"The die and electrical ratings are identical. IRF3805STRLPBF ships in Tape & Reel packaging; IRF3805PBF ships in tube packaging. Choose the reel for automated pick-and-place assembly, the tube for bench or low-volume builds."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF3805STRLPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF3805STRLPBF 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}}