{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF7842TRPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF7842TRPBF","canonicalUrl":"https://icboms.com/infineon/IRF7842TRPBF","factsUrl":"https://icboms.com/api/mcp/products/IRF7842TRPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IRF7842TRPBF HEXFET N-Channel MOSFET, 40 V Vdss, 18 A Id, 5 mOhm Rds(on) at 10 V, 50 nC Qg, SO-8 package, -55 to 150 °C.","salesMarkdown":"## 5 mOhm Rds(on) in an SO-8 — the conduction-loss ceiling The IRF7842TRPBF: Rds(on) is 5 mOhm at 17 A, 10 V. ## Gate charge and drive voltage — switching loss budget Gate charge is 50 nC at 4.5 V. Drive voltage range for rated Rds(on) is 4.5 V to 10 V. ## Package and thermal reality Maximum power dissipation is 2.5 W at 25 °C ambient — this is the thermal limit in still air without a heatsink. For continuous operation above a few amps, the PCB copper area under the drain pins becomes the primary thermal path; a 1 oz copper pour of at least 1 square inch is typical to keep junction temperature below the 150 °C maximum.","metaTitle":"IRF7842TRPBF HEXFET N-Channel MOSFET, 40V 18A 5mOhm SO-8","metaDescription":"IRF7842TRPBF N-channel HEXFET MOSFET, 40V Vdss, 18A Id, 5mOhm Rds(on) at 10V. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2.25V @ 250µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"5mOhm @ 17A, 10V","Power Dissipation (Max)":"2.5W (Ta)","Supplier Device Package":"8-SO","Gate Charge (Qg) (Max) @ Vgs":"50 nC @ 4.5 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"4500 pF @ 20 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"18A (Ta)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.73","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.73000","currency":"USD"},{"qty":10,"price":"$1.43800","currency":"USD"},{"qty":100,"price":"$1.14430","currency":"USD"},{"qty":500,"price":"$0.96824","currency":"USD"},{"qty":1000,"price":"$0.82153","currency":"USD"},{"qty":2000,"price":"$0.78046","currency":"USD"},{"qty":4000,"price":"$0.78046","currency":"USD"},{"qty":8000,"price":"$0.75112","currency":"USD"},{"qty":12000,"price":"$0.72625","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/367f77c265a6b77ccf18d5dda30a8d26.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What are the applications of IRF7842TRPBF?","answer":"As a 40 V N-channel MOSFET with 5 mOhm Rds(on) in an SO-8, it is suited for low-voltage DC-DC converters, load switches, battery protection circuits, and motor drive half-bridges in 12 V and 24 V systems."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF7842TRPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF7842TRPBF 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}}