{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"AUIRF7665S2TR","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"AUIRF7665S2TR","canonicalUrl":"https://icboms.com/infineon/AUIRF7665S2TR","factsUrl":"https://icboms.com/api/mcp/products/AUIRF7665S2TR","rawCanonicalId":null},"summary":{"shortDescription":"Infineon HEXFET® N-Channel MOSFET, AUIRF7665S2TR, 100 V drain-source, 62 mOhm Rds(on) at 8.9 A, 10 Vgs, 13 nC gate charge, -55°C to 175°C junction temperature, surface mount.","salesMarkdown":"## 100 V N-channel FET for the automotive load path It is built for automotive environments, with a junction temperature range from -55°C to 175°C. The 175°C TJ ceiling is the key differentiator here — it gives the thermal budget to run this FET in an under-hood ECU or a transmission controller where ambient temps push past 125°C and a standard 150°C part would be at its derating limit. At 8.9 A drain current, the 62 mOhm on-resistance produces about 4.9 W of conduction loss (I²R), which is above the 2.4 W power dissipation figure listed — so this part needs a heatsink or a good copper pour on the PCB to keep the junction below 175°C in continuous operation. For pulsed or intermittent loads, the thermal mass of the package handles it. Gate threshold voltage is 5 V maximum at 25 µA drain current — that is a high threshold. It keeps the FET off during power-up sequencing and resists noise on the gate line, but it also means the gate driver must swing to at least 10 V to fully enhance the channel and hit the rated Rds(on). ## Active production, automotive-grade The part is described as an automotive DirectFET N-channel device, which means it is qualified for the automotive temperature range and reliability requirements.","metaTitle":"Infineon AUIRF7665S2TR N-Channel HEXFET, 100 V, 62 mOhm","metaDescription":"Infineon AUIRF7665S2TR N-channel HEXFET MOSFET, 100 V, 62 mOhm Rds(on) at 8.9 A, 175°C TJ, active production, automotive-grade.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®","has_mpn":"AUIRF7665","power_w":"2.4","Fet Type":"N-Channel","package_type":"Bulk","mounting_type":"Surface Mount","capacitance_uf":"0.0005","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"100.0","Vgs(Th) (Max) @ Id":"5 V @ 25µA","switching_current_a":"4.1","Rds On (Max) @ Id, Vgs":"62mOhm @ 8.9 A, 10 V","Operating Temperature High":"-55°C to 175°C(TJ)","Gate Charge (Qg) (Max) @ Vgs":"13 nC @ 10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.60","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/53a7f13777457e8d4ceeb2d3f6543413.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the AUIRF7665S2TR suitable for automotive applications?","answer":"Yes, the part is described as an automotive DirectFET N-channel device and is rated for a junction temperature up to 175°C, which covers under-hood and high-ambient automotive environments."},{"question":"What is the difference between AUIRF7665S2TR and AUIRF7665S2TRL?","answer":"The suffix difference typically indicates packaging or reel quantity variant. The 'S2TR' and 'S2TRL' suffixes on Infineon DirectFET parts often denote tape-and-reel packaging with different reel sizes or quantities, but the electrical specifications are the same. Confirm the specific reel quantity and package dimensions with the distributor at quote time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/AUIRF7665S2TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/AUIRF7665S2TR 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}}