{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRFS7434TRLPBF","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRFS7434TRLPBF","canonicalUrl":"https://icboms.com/infineon/IRFS7434TRLPBF","factsUrl":"https://icboms.com/api/mcp/products/IRFS7434TRLPBF","rawCanonicalId":null},"summary":{"shortDescription":"Infineon IRFS7434TRLPBF, HEXFET® StrongIRFET™ series, N-channel MOSFET, 40 V Vdss, 195 A Id, 1.6 mOhm Rds(on) at 10 V, 324 nC Qg, D2PAK (TO-263) surface mount, -55 to 175 °C.","salesMarkdown":"## 324 nC gate charge — the driver budget for switching frequency Total gate charge at 10 V is 324 nC. To switch this FET in 100 ns, the gate driver must source over 3 A peak. The input capacitance of 10820 pF at 25 V drain-source reinforces the same message: this is a large-die part designed for low-frequency hard switching (up to maybe 50–100 kHz) or for synchronous rectification where the FET is on most of the cycle. A small SOT-23 gate driver will struggle; plan for a dedicated driver with at least 4 A peak source-sink capability. ## 175 °C junction — military-temperature silicon in a D2PAK The 175 °C Tj max is unusual for a 40 V trench MOSFET — most competitors stop at 150 °C. This part can live in an engine bay, a hot-swap supply, or a telecom rectifier where the ambient near the FET hits 125 °C. No last-time-buy window to track, no successor to qualify. The part is ROHS3 compliant.","metaTitle":"IRFS7434TRLPBF N-Channel MOSFET, 40 V, 1.6 mOhm, D2PAK","metaDescription":"IRFS7434TRLPBF N-channel HEXFET MOSFET, 40 V, 195 A, 1.6 mOhm Rds(on) at 10 V. D2PAK surface mount. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"HEXFET®, StrongIRFET™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"HEXFET®, StrongIRFET™","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"3.9V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"1.6mOhm @ 100A, 10V","Power Dissipation (Max)":"294W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"324 nC @ 10 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"10820 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"6V, 10V","Current - Continuous Drain (Id) @ 25°C":"195A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.94","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.94000","currency":"USD"},{"qty":10,"price":"$2.44200","currency":"USD"},{"qty":100,"price":"$1.94330","currency":"USD"},{"qty":800,"price":"$1.64434","currency":"USD"},{"qty":1600,"price":"$1.39519","currency":"USD"},{"qty":2400,"price":"$1.32543","currency":"USD"},{"qty":5600,"price":"$1.27561","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e0d0243c8d1c62bc9df07e602203355e.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the equivalent or replacement for IRFS7434TRLPBF?","answer":"The IPD50R950CEAUMA1 is a CoolMOS™ CE device with a 500 V drain-source rating and 950 mOhm Rds(on) — it is not a functional substitute for a 40 V, 1.6 mOhm part. For a drop-in alternate, verify the package (D2PAK), gate charge, and Rds(on) against your thermal budget."},{"question":"Does IRFS7434TRLPBF require a heatsink?","answer":"At 195 A continuous drain current and 1.6 mOhm Rds(on), the conduction loss alone is over 60 W. The 294 W dissipation ceiling is only reachable with the case held at 25 °C — in practice, at any reasonable ambient temperature, a heatsink or forced airflow is required to keep the junction below 175 °C."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRFS7434TRLPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRFS7434TRLPBF 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}}