{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFZ44NL","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFZ44NL","canonicalUrl":"https://icboms.com/infineon/IRFZ44NL","factsUrl":"https://icboms.com/api/mcp/products/IRFZ44NL","rawCanonicalId":null},"summary":{"shortDescription":"IRFZ44NL, HEXFET N-Channel MOSFET, 55 V drain-source, 49 A continuous drain, 17.5 mOhm Rds(on) max at 25 A, 10 V drive, TO-262 through-hole package, -55 to 175 °C junction temperature.","salesMarkdown":"## What the 17.5 mOhm Rds(on) means for your switching design Date-code provenance matters here: stock surfacing years after the official EOL should be inspected for counterfeits, especially on a high-volume IRFZ44 series part. ## Package and temperature range — design-in fit Housed in a TO-262-3 (I²Pak) through-hole package with long leads, the IRFZ44NL is a direct-fit replacement for TO-220AB footprints where the tab is isolated or the board layout calls for a vertical mount with the drain tab on the back side.","metaTitle":"IRFZ44NL HEXFET N-Channel MOSFET, 55V 49A TO-262","metaDescription":"IRFZ44NL HEXFET N-Channel MOSFET, 55V drain-source, 49A continuous drain, 17.5mOhm Rds(on) at 10V.","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-262-3 Long Leads, I²Pak, TO-262AA","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":"17.5mOhm @ 25A, 10V","Power Dissipation (Max)":"3.8W (Ta), 94W (Tc)","Supplier Device Package":"TO-262","Gate Charge (Qg) (Max) @ Vgs":"63 nC @ 10 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"1470 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"49A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1ea212fe0ccd0fa5722623cdee6eaf3a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/IRFZ44NL/alternatives.json"},"ai":{"faq":[{"question":"What is the equivalent of IRFZ44NL?","answer":"No official successor is listed. The closest functional peer in the same voltage and current class is the IRLZ44N (logic-level gate, lower Rds(on) at 5 V drive), but the IRFZ44NL requires 10 V gate drive for its rated Rds(on). Pin-compatibility depends on package — both are TO-220-family footprints, but the IRFZ44NL uses the TO-262 long-lead variant. For a drop-in replacement, verify the package outline and gate-drive voltage against the IRLZ44N datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFZ44NL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFZ44NL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:54:32.358Z","lastPublished":"2026-07-16T14:54:32.358Z","indexable":true}}