{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF7665S2TRPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF7665S2TRPBF","canonicalUrl":"https://icboms.com/infineon/IRF7665S2TRPBF","factsUrl":"https://icboms.com/api/mcp/products/IRF7665S2TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IRF7665S2TRPBF, N-Channel MOSFET, 100 V, 4.1 A continuous, Rds(on) 62 mOhm at 10 V, DirectFET package, surface mount, -55°C to 175°C junction temperature.","salesMarkdown":"## 100 V N-channel in a DirectFET can — conduction loss and thermal path The IRF7665S2TRPBF is an N-channel power MOSFET rated at 100 V drain-source with a continuous drain current of 4.1 A. The on-resistance is specified at 62 mOhm maximum when driven with 10 V on the gate and 8.9 A drain current — this is the figure to use for conduction-loss budgeting in a synchronous rectifier or primary-side switch. At 4.1 A continuous, the I²R conduction loss at 62 mOhm is just over 1 W. The total device dissipation is rated at 2.4 W, so the junction-to-ambient thermal path in the DirectFET package must be managed — the copper area on the drain tab and airflow determine the real thermal limit. Gate charge totals 13 nC at 10 V, which keeps the switching losses moderate at frequencies up to a few hundred kHz. The gate threshold is 5 V maximum at 25 µA, so a 10 V gate drive provides ample overdrive for a hard-switched topology. ## Junction temperature range and package thermal reality This matters in a high-ambient enclosure or a motor-drive bay where the MOSFET sits near the heatsink baseplate. The DirectFET package (listed as Bulk in the spec — the part ships in tape-and-reel as the TR suffix indicates) exposes the drain on the top surface for direct heatsinking or PCB copper spreading. Infineon lists the IRF7665S2TRPBF as Active.","metaTitle":"IRF7665S2TRPBF N-Channel MOSFET, 100 V, 4.1 A, DirectFET","metaDescription":"Infineon IRF7665S2TRPBF N-channel MOSFET, 100 V, 4.1 A continuous, 62 mOhm Rds(on) at 10 V. DirectFET package, -55°C to 175°C junction range.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","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":"$0.43","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://rocelec.widen.net/view/pdf/10yfcnjtjj/IRSDS10550-1.pdf?t.download=true&u=5oefqw","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of IRF7665S2TRPBF?","answer":"The maximum on-resistance is 62 mOhm at Vgs = 10 V and Id = 8.9 A."},{"question":"Is IRF7665S2TRPBF active or obsolete?","answer":"No discontinuation notice or last-time-buy date has been issued."},{"question":"What is the maximum drain current of IRF7665S2TRPBF?","answer":"The continuous drain current rating is 4.1 A at 100 V. The pulsed current capability is higher — the switching current is listed at 14.4 A."},{"question":"Does IRF7665S2TRPBF have a DirectFET package?","answer":"Yes, the description calls out the DirectFET package. The mounting type is surface mount, and the drain tab on top allows direct heatsinking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF7665S2TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF7665S2TRPBF 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}}