{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFZ44VZ","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFZ44VZ","canonicalUrl":"https://icboms.com/infineon/IRFZ44VZ","factsUrl":"https://icboms.com/api/mcp/products/IRFZ44VZ","rawCanonicalId":null},"summary":{"shortDescription":"IRFZ44VZ, International Rectifier HEXFET® N-Channel MOSFET, 60 V drain-source, 57 A continuous drain, 12 mOhm Rds(on) at 10 V, 65 nC gate charge, TO-220-3 (TO-220AB), -55 to 175 °C.","salesMarkdown":"The IRFZ44VZ is an International Rectifier HEXFET® N-channel power MOSFET in a through-hole TO-220-3 (TO-220AB) package. Gate charge is 65 nC at 10 V. The 12 mOhm maximum on-resistance at 34 A and 10 V gate-source is the number that sizes the heatsink and sets the I²R loss in the power path. At 57 A continuous drain, the conduction loss at 12 mOhm is about 39 W, which the 92 W package dissipation limit can handle with adequate thermal management — a TO-220 bolted to a heatsink with thermal compound. ## 65 nC gate charge — switching speed budget Input capacitance is 1690 pF at 25 V drain-source. ## Obsolete — sourcing and replacement reality For new designs or BOM continuity, the replacement path is not a direct pin-compatible drop-in from the same series — the IRFZ44VZ was a specific variant in the HEXFET family. If you are qualifying a replacement, the closest functional sibling in the same TO-220 footprint with 60 V / 57 A class ratings would be the IRFZ44N or IRFZ44Z, but verify gate charge, Rds(on), and temperature range against your switching frequency and thermal budget before committing the BOM line.","metaTitle":"IRFZ44VZ N-Channel MOSFET, 60 V, 57 A, TO-220-3","metaDescription":"IRFZ44VZ N-channel HEXFET MOSFET, 60 Vdss, 57 A Id, 12 mOhm Rds(on). TO-220-3, -55 to 175 °C. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"12mOhm @ 34A, 10V","Power Dissipation (Max)":"92W (Tc)","Supplier Device Package":"TO-220AB","Gate Charge (Qg) (Max) @ Vgs":"65 nC @ 10 V","Drain to Source Voltage (Vdss)":"60 V","Input Capacitance (Ciss) (Max) @ Vds":"1690 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"57A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e799361c53521c7e87bc4617f85a111b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IRFZ44VZ/alternatives.json"},"ai":{"faq":[{"question":"Is IRFZ44VZ obsolete or EOL?","answer":"Yes, the IRFZ44VZ is listed as obsolete. It is no longer manufactured by International Rectifier / Infineon."},{"question":"What is the replacement for IRFZ44VZ?","answer":"There is no single official pin-compatible replacement announced by the manufacturer. The IRFZ44N and IRFZ44Z are functional siblings in the same TO-220 footprint with similar 60 V / 55–60 A ratings, but you must compare Rds(on), gate charge, and temperature range against your specific switching frequency and thermal design before substituting."},{"question":"What are the specifications of IRFZ44VZ?","answer":"It comes in a through-hole TO-220-3 (TO-220AB) package."},{"question":"Is IRFZ44VZ compatible with IRFZ44N?","answer":"The IRFZ44N and IRFZ44VZ share the same TO-220 footprint and similar voltage/current class (55–60 V, 55–57 A), but the IRFZ44VZ has a lower Rds(on) of 12 mOhm versus the IRFZ44N's typical 17.5 mOhm. Gate charge and input capacitance also differ. They are not drop-in equivalents without verifying the gate drive circuit and thermal performance at your operating point."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFZ44VZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFZ44VZ when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:03:22.893Z","lastPublished":"2026-07-16T15:03:22.893Z","indexable":true}}