{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AUIRFS8408","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"AUIRFS8408","canonicalUrl":"https://icboms.com/infineon/AUIRFS8408","factsUrl":"https://icboms.com/api/mcp/products/AUIRFS8408","rawCanonicalId":null},"summary":{"shortDescription":"Infineon AUIRFS8408, automotive N-channel HEXFET MOSFET, 40 V, 195 A switching current, 1.6 mOhm Rds(on) max at 10 V, 324 nC gate charge, -55°C to 175°C junction temperature, surface mount.","salesMarkdown":"## 40 V N-channel HEXFET for automotive power switching The AUIRFS8408: It is designed for high-current switching applications such as electric power steering, engine cooling fans, and DC-DC converters in 12 V and 24 V vehicle electrical systems. ## On-resistance and gate charge — sizing the driver The total gate charge of 324 nC at 10 V determines the gate-driver current needed for the target switching frequency — a 324 nC gate switched at 50 kHz draws about 16 mA from the driver, well within the capability of a standard automotive gate-driver IC. ## Junction temperature range and automotive qualification The 175°C TJ max provides headroom for fault conditions like stalled-motor current or short-circuit events before the silicon reaches its absolute limit. The field lists IRFS8408 as a direct cross-reference, which can simplify dual-sourcing or replacement searches.","metaTitle":"AUIRFS8408 N-Channel HEXFET, 40 V, 1.6 mOhm, -55 to 175°C","metaDescription":"AUIRFS8408 automotive N-channel HEXFET MOSFET, 40 V, 195 A switching, 1.6 mOhm Rds(on) at 10 V. Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®","has_mpn":"IRFS8408","power_w":"294.0","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Surface Mount","capacitance_uf":"0.0108","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"40.0","Vgs(Th) (Max) @ Id":"3.9 V @ 250µA","switching_current_a":"195.0","Rds On (Max) @ Id, Vgs":"1.6mOhm @ 100 A, 10 V","Operating Temperature High":"-55°C to 175°C(TJ)","Gate Charge (Qg) (Max) @ Vgs":"324 nC @ 10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.29","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/6db7ea7d72e2c85d85debe52a542a98f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/AUIRFS8408/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/AUIRFS8408","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/AUIRFS8408 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}}