{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AUIRL2203N","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"AUIRL2203N","canonicalUrl":"https://icboms.com/infineon/AUIRL2203N","factsUrl":"https://icboms.com/api/mcp/products/AUIRL2203N","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET® AUIRL2203N, automotive N-channel MOSFET, 30 V drain-source, 75 A switching current, 7 mOhm Rds(on) max at 60 A / 10 V, 60 nC gate charge at 4.5 V, -55°C to 175°C Tj, through-hole package.","salesMarkdown":"## 7 mOhm Rds(on) at 60 A — conduction loss floor The AUIRL2203N is an Infineon HEXFET N-channel MOSFET rated for 30 V drain-source with a switching current of 75 A. Its on-resistance is specified at 7 mOhm maximum at 60 A drain current and 10 V gate drive — this is the conduction loss per amp, not a typical value. At 60 A the dissipation is 25.2 W (I²R) before you factor in the positive temperature coefficient of Rds(on). The 180 W rated power gives the thermal budget headroom for a heatsink in a continuous-load design. ## Logic-level gate: 60 nC at 4.5 V The gate charge is 60 nC at 4.5 V, which means a 5 V microcontroller GPIO can drive this FET into the ohmic region without a separate gate driver IC. The threshold voltage is 1 V max at 250 µA — the device is fully enhanced by 3.3 V logic, though Rds(on) is specified at 10 V for the guaranteed minimum. For a 20 kHz PWM load, the gate drive current is 1.2 mA (Qg × fsw), well within the output capability of a standard MCU pin. ## 175°C junction — under-hood automotive grade The operating junction temperature range is -55°C to 175°C, which qualifies the AUIRL2203N for engine-bay and transmission-control environments where ambient temps exceed 125°C. The AUTOMOTIVE N-CHANNEL designation in the part title points to AEC-Q101 qualification and the production-part-approval process (PPAP) documentation that Tier-1 automotive buyers require. The through-hole package (TO-220AB style) suits bolted-down heatsink mounting on a power board. The product status is Active. No last-time-buy notice or end-of-life window has been issued.","metaTitle":"AUIRL2203N N-Channel HEXFET, 7mOhm Rds(on), 175°C Tj","metaDescription":"Infineon AUIRL2203N automotive N-channel HEXFET, 30V, 75A switching, 7mOhm Rds(on) at 60A/10V.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±16 V","series":"HEXFET®","power_w":"180.0","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Through Hole","capacitance_uf":"0.0033","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"30.0","Vgs(Th) (Max) @ Id":"1 V @ 250µA","switching_current_a":"75.0","Rds On (Max) @ Id, Vgs":"7mOhm @ 60 A, 10 V","Operating Temperature High":"-55°C to 175°C(TJ)","Gate Charge (Qg) (Max) @ Vgs":"60 nC @ 4.5 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.00","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/888637132cb8d50d513c78caecd35d75.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the AUIRL2203N Rds(on) value?","answer":"The maximum Rds(on) is 7 mOhm at 60 A drain current and 10 V gate drive. This is the guaranteed ceiling at 25°C junction temperature; the actual on-resistance increases with temperature per the normalized curve in the datasheet."},{"question":"What is the AUIRL2203N gate charge?","answer":"The total gate charge is 60 nC at 4.5 V gate-source voltage. This low Qg enables direct drive from a 5 V microcontroller GPIO without a dedicated gate driver for switching frequencies up to several tens of kHz."},{"question":"Does AUIRL2203N have an equivalent or replacement?","answer":"No pin-compatible second-source or official successor is listed on the record. For a dual-sourcing review, compare the 7 mOhm Rds(on) at 60 A / 10 V and 60 nC gate charge at 4.5 V against other TO-220 automotive N-channel FETs with a 175°C Tj rating."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/AUIRL2203N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/AUIRL2203N 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}}