{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFIZ44NPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFIZ44NPBF","canonicalUrl":"https://icboms.com/infineon/IRFIZ44NPBF","factsUrl":"https://icboms.com/api/mcp/products/IRFIZ44NPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET® IRFIZ44NPBF, N-Channel MOSFET, 55 V Vdss, 31 A Id, 24 mOhm Rds(on) @ 10 V, 65 nC Qg, TO-220-3 Full Pack, -55°C to 175°C.","salesMarkdown":"## 55 V, 31 A N-channel — the TO-220FP workhorse The IRFIZ44NPBF: The TO-220-3 Full Pack (TO-220AB Full-Pak) isolates the tab electrically, so no insulating washer or pad is needed between the device and the heatsink — a practical advantage in assembled-through-hole designs where the heatsink shares a chassis ground. ## 24 mOhm on-resistance — conduction loss ceiling Maximum Rds(on) is 24 mOhm at 17 A drain current with 10 V gate drive. The 45 W power dissipation limit at the case (Tc) means the thermal design must keep the junction below 175 °C under worst-case load. Gate charge totals 65 nC at 10 V. The 1300 pF input capacitance at 25 V drain bias means the driver's peak current capability sets the rise and fall times. ## Through-hole full-pack — heatsink without the washer The TO-220-3 Full Pack (TO-220AB Full-Pak) uses a fully moulded plastic body that isolates the mounting tab. No separate insulating pad or bushing is required when bolting to a heatsink, which simplifies assembly and reduces thermal interface resistance.","metaTitle":"IRFIZ44NPBF N-Channel MOSFET, 55V 31A, 24mOhm, TO-220FP","metaDescription":"IRFIZ44NPBF N-channel HEXFET MOSFET, 55V Vdss, 31A Id, 24mOhm Rds(on) at 10V. Active production, ROHS3.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"24mOhm @ 17A, 10V","Power Dissipation (Max)":"45W (Tc)","Supplier Device Package":"TO-220AB Full-Pak","Gate Charge (Qg) (Max) @ Vgs":"65 nC @ 10 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"1300 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"31A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.54","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.54000","currency":"USD"},{"qty":10,"price":"$1.28000","currency":"USD"},{"qty":100,"price":"$1.01880","currency":"USD"},{"qty":500,"price":"$0.86208","currency":"USD"},{"qty":1000,"price":"$0.73146","currency":"USD"},{"qty":2000,"price":"$0.69489","currency":"USD"},{"qty":5000,"price":"$0.66877","currency":"USD"},{"qty":10000,"price":"$0.64663","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4cb6ef79298315a61db3f75f41a2b2c1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of IRFIZ44NPBF?","answer":"This is the on-resistance at the specified test condition; expect the value to increase with junction temperature per the normalised curve in the datasheet."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFIZ44NPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFIZ44NPBF 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}}