{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFZ44ESPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFZ44ESPBF","canonicalUrl":"https://icboms.com/infineon/IRFZ44ESPBF","factsUrl":"https://icboms.com/api/mcp/products/IRFZ44ESPBF","rawCanonicalId":null},"summary":{"shortDescription":"IRFZ44ESPBF, Infineon HEXFET® N-Channel MOSFET, 60 V Vdss, 48 A continuous drain, 23 mΩ Rds(on) at 10 V, TO-263-3 D²Pak surface mount, -55°C to 175°C junction temperature.","salesMarkdown":"The 60 V Vdss puts it in the 48 V / 60 V bus class common for motor drives, battery chargers, and DC-DC converters where you need headroom above a nominal 48 V rail. ## 23 mΩ Rds(on) — sizing the conduction loss That works out to roughly 19 W conduction loss at full current — well within the 110 W power dissipation rating at the case, but the junction-to-case thermal path means you need a decent copper area or a heatsink on the D2PAK tab. The Pb-free (PbF suffix) finish is RoHS-compatible and the D2PAK is a common package, so second-sourcing from other HEXFET variants is straightforward if you need dual-source coverage. That extra headroom at the hot end matters if this MOSFET sits near a motor winding, inside an engine bay, or in a sealed enclosure where ambient can push 85°C and self-heating adds another 50°C. The 175°C max gives you a real derating margin before you hit the absolute limit.","metaTitle":"IRFZ44ESPBF HEXFET N-Channel MOSFET, 60V 48A D2PAK","metaDescription":"IRFZ44ESPBF HEXFET N-Channel MOSFET, 60V Vdss, 48A continuous drain, 23mΩ Rds(on) at 10V. Active lifecycle, D2PAK surface mount.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"Infineon Technologies","Series":"HEXFET®","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","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":"23mOhm @ 29A, 10V","Power Dissipation (Max)":"110W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"60 nC @ 10 V","Drain to Source Voltage (Vdss)":"60 V","Input Capacitance (Ciss) (Max) @ Vds":"1360 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"48A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8297556801f20f300fea4d4f2904bb7f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IRFZ44ESPBF/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between IRFZ44ESPBF and IRFZ44EPBF?","answer":"The IRFZ44ESPBF and IRFZ44EPBF share the same die and electrical ratings — 60 V Vdss, 48 A Id, 23 mΩ Rds(on). The difference is the package: the ESPBF is the D2PAK (TO-263) surface-mount version, while the EPBF is the TO-220 through-hole version. Choose the ESPBF for SMT assembly and the EPBF if you need a through-hole mount for manual soldering or a heatsink clip."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFZ44ESPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFZ44ESPBF 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}}