{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AUIRFZ48N","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"AUIRFZ48N","canonicalUrl":"https://icboms.com/infineon/AUIRFZ48N","factsUrl":"https://icboms.com/api/mcp/products/AUIRFZ48N","rawCanonicalId":null},"summary":{"shortDescription":"Infineon AUIRFZ48N, N-Channel HEXFET MOSFET, 55V, 69A, 14mOhm Rds(on) at 40A, 10V, 63nC gate charge, TO-220 through-hole, -55°C to 175°C junction.","salesMarkdown":"## 55 V, 69 A N-channel HEXFET — the bench-level view The AUIRFZ48N is an Infineon N-channel HEXFET MOSFET in a TO-220 through-hole package, rated for 55 V drain-source and 69 A continuous drain current. Its 14 mOhm on-resistance at 40 A with 10 V gate drive makes it a solid choice for motor-drive outputs, battery-switch rails, and DC-DC converters where the junction temperature can hit 175°C. At 40 A load, the dissipation is roughly 22 W — the TO-220 copper tab area and airflow determine whether a heatsink is needed. Gate charge is 63 nC at 10 V. For a 100 kHz hard-switched converter, the driver must supply about 6.3 mA average; a standard gate-driver IC with 1 A peak handles it easily. The ±20 V Vgs max gives margin for gate-drive overshoot. ## Package and temperature grade Through-hole TO-220 package — the tab is the drain. Junction temperature range is -55°C to 175°C, which covers automotive under-hood and industrial motor-drive environments where the die sees sustained thermal cycling.","metaTitle":"AUIRFZ48N N-Channel MOSFET, 55V 69A, 14mOhm Rds(on), TO-220","metaDescription":"Infineon AUIRFZ48N N-Channel HEXFET MOSFET, 55V, 69A, 14mOhm Rds(on) at 40A, TO-220 package. Active lifecycle. Gate charge 63nC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®","power_w":"160.0","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Through Hole","capacitance_uf":"0.0019","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"55.0","Vgs(Th) (Max) @ Id":"4 V @ 100µA","switching_current_a":"69.0","Rds On (Max) @ Id, Vgs":"14mOhm @ 40 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":"$1.39","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6c46607a168cecbe83c51711f0f8e26c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can AUIRFZ48N replace IRFZ48N?","answer":"The AUIRFZ48N is the automotive-qualified version of the standard IRFZ48N, sharing the same TO-220 footprint and similar 55 V / 69 A ratings. Pin-compatible in most designs, but confirm the gate threshold and switching characteristics against your specific circuit — the AUIRFZ48N is rated for 175°C junction temperature versus the commercial-grade IRFZ48N's 175°C (same), so the thermal headroom is equivalent."},{"question":"What is the gate charge of AUIRFZ48N?","answer":"Total gate charge is 63 nC at Vgs = 10 V. This determines the average drive current needed for a given switching frequency — at 100 kHz, expect roughly 6.3 mA average from the gate driver."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/AUIRFZ48N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/AUIRFZ48N 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}}