{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AUIRFZ44N","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"AUIRFZ44N","canonicalUrl":"https://icboms.com/infineon/AUIRFZ44N","factsUrl":"https://icboms.com/api/mcp/products/AUIRFZ44N","rawCanonicalId":null},"summary":{"shortDescription":"Infineon Technologies HEXFET® series, AUIRFZ44N N-Channel MOSFET, Through Hole, TO-220, 55 V, 49 A, 17.5 mOhm Rds(on), Bulk.","salesMarkdown":"The AUIRFZ44N is an N-Channel power MOSFET from Infineon's automotive-grade HEXFET series, housed in a through-hole TO-220 package and supplied in bulk. ## Gate drive and switching performance Total gate charge is 63 nC at 10 V — the driver must supply this charge per switching cycle; at 50 kHz the average gate drive current is 3.15 mA, well within a standard gate driver's capability. Maximum gate-source voltage is ±20 V, and the threshold voltage is 4 V at 250 µA drain current — the logic-level drive margin is tight; a 5 V gate signal barely exceeds the threshold at cold temperature. Input capacitance is 1500 pF (0.0015 µF) — this sets the switching speed ceiling alongside the gate resistance and driver source/sink current.","metaTitle":"Infineon AUIRFZ44N N-Channel MOSFET, 55V, 49A, TO-220","metaDescription":"Infineon AUIRFZ44N automotive HEXFET N-Channel MOSFET, 55V, 49A, 17.5mOhm Rds(on). Active production. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®","power_w":"94.0","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Through Hole","capacitance_uf":"0.0015","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"55.0","Vgs(Th) (Max) @ Id":"4 V @ 250µA","switching_current_a":"49.0","Rds On (Max) @ Id, Vgs":"17.5mOhm @ 25 A, 10 V","Operating Temperature High":"-55°C to 175°C(TJ)","Gate Charge (Qg) (Max) @ Vgs":"63 nC @ 10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.87","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f756eabb7e901c1d433145e27652b8d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AUIRFZ44N/alternatives.json"},"ai":{"faq":[{"question":"What is the AUIRFZ44N's maximum Rds(on) and at what test condition?","answer":"The maximum Rds(on) is 17.5 mOhm, specified at a drain current of 25 A and a gate-source voltage of 10 V."},{"question":"What is the AUIRFZ44N's gate charge and why does it matter?","answer":"Total gate charge is 63 nC at 10 V. This value determines the gate drive current required at a given switching frequency — higher gate charge increases driver power loss and limits switching speed."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/AUIRFZ44N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/AUIRFZ44N 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}}