{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFS4321TRLPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFS4321TRLPBF","canonicalUrl":"https://icboms.com/infineon/IRFS4321TRLPBF","factsUrl":"https://icboms.com/api/mcp/products/IRFS4321TRLPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET IRFS4321TRLPBF, N-Channel MOSFET, 150 V Vdss, 85 A continuous drain, 15 mOhm Rds(on) at 10 V, D2PAK (TO-263) surface-mount, -55°C to 175°C junction temperature.","salesMarkdown":"## Gate charge and driver budget The IRFS4321TRLPBF: Total gate charge is 110 nC at 10 V. Input capacitance is 4460 pF at 25 V Vds. This capacitance, combined with the gate charge, sets the switching energy; the designer should verify the driver's sink/source capability against the Qg total and the target rise/fall time. ## Package and board integration Housed in a D2PAK (TO-263-3) surface-mount package with the tab as the drain connection. The large copper pad on the PCB must be sized to handle 350 W power dissipation at the case — the datasheet's thermal resistance junction-to-case assumes the tab is soldered to a minimum recommended pad area. ## Lifecycle and compliance ROHS3 compliant. The ±30 V maximum gate-source rating gives margin for gate-drive transients in noisy environments.","metaTitle":"IRFS4321TRLPBF HEXFET N-Ch 150V 85A D2PAK MOSFET","metaDescription":"IRFS4321TRLPBF N-channel HEXFET MOSFET, 150V Vdss, 85A continuous drain, 15mOhm Rds(on) at 10V. Active lifecycle, ROHS3 compliant, D2PAK surface-mount.","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)":"±30V","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":"5V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"15mOhm @ 33A, 10V","Power Dissipation (Max)":"350W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"110 nC @ 10 V","Drain to Source Voltage (Vdss)":"150 V","Input Capacitance (Ciss) (Max) @ Vds":"4460 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"85A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.7","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.70000","currency":"USD"},{"qty":10,"price":"$3.10900","currency":"USD"},{"qty":100,"price":"$2.51500","currency":"USD"},{"qty":800,"price":"$2.23558","currency":"USD"},{"qty":1600,"price":"$1.91421","currency":"USD"},{"qty":2400,"price":"$1.80243","currency":"USD"},{"qty":5600,"price":"$1.72925","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/d3ea41dae6dd891d7150d9b1d60f8321.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the difference between IRFS4321TRLPBF and IRFS4321PBF?","answer":"The die and package are identical. The TRLPBF suffix denotes Tape & Reel packaging; the PBF suffix denotes tube packaging. Electrical ratings are the same."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFS4321TRLPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFS4321TRLPBF 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}}