{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRL40SC209","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRL40SC209","canonicalUrl":"https://icboms.com/infineon/IRL40SC209","factsUrl":"https://icboms.com/api/mcp/products/IRL40SC209","rawCanonicalId":null},"summary":{"shortDescription":"Infineon StrongIRFET™ N-Channel MOSFET, IRL40SC209, 40V Vdss, 478A Id, 0.8mOhm Rds(on) at 100A, 267nC Qg, D2PAK-7 (TO-263-7), -55°C to 175°C.","salesMarkdown":"## StrongIRFET™ N-channel for high-current switching The Infineon IRL40SC209 is an N-channel MOSFET from the StrongIRFET™ series, built for low-voltage, high-current power switching. The 267 nC gate charge at 4.5 V sets the drive requirement — a gate driver capable of sourcing several amps is needed to keep switching losses in check at higher frequencies. ## Thermal and package reality for the layout The D2PAK-7 (TO-263-7) surface-mount package with exposed tab requires a dedicated copper area on the PCB for heat spreading. The 375 W power dissipation rating is only achievable with the tab soldered to a substantial thermal pad and adequate board-level cooling. Operating junction temperature spans -55°C to 175°C, so the part suits high-temperature environments like engine bays or industrial power stages where ambient heat is a factor.","metaTitle":"IRL40SC209 MOSFET N-CH 40V 478A D2PAK, StrongIRFET™","metaDescription":"IRL40SC209 N-channel 40V MOSFET from Infineon StrongIRFET™ series. 0.8 mOhm Rds(on) at 100A, 267 nC gate charge, D2PAK-7. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"StrongIRFET™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"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-263-7, D²Pak (6 Leads + Tab), TO-263CB","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2.4V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"0.8mOhm @ 100A, 10V","Power Dissipation (Max)":"375W (Tc)","Supplier Device Package":"D2PAK (7-Lead)","Gate Charge (Qg) (Max) @ Vgs":"267 nC @ 4.5 V","Drain to Source Voltage (Vdss)":"40 V","Input Capacitance (Ciss) (Max) @ Vds":"15270 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"4.5V, 10V","Current - Continuous Drain (Id) @ 25°C":"478A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.83","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.06000","currency":"USD"},{"qty":10,"price":"$3.41100","currency":"USD"},{"qty":100,"price":"$2.75970","currency":"USD"},{"qty":800,"price":"$2.45309","currency":"USD"},{"qty":1600,"price":"$2.10046","currency":"USD"},{"qty":2400,"price":"$1.97780","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/139268c424e58314961bb922b28132c6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) and gate charge of IRL40SC209?","answer":"Maximum Rds(on) is 0.8 mOhm at 100 A drain current with 10 V gate drive. Gate charge (Qg) is 267 nC maximum at 4.5 V. These two numbers define the conduction loss and the gate-drive power budget."},{"question":"What is the maximum drain current for IRL40SC209?","answer":"Continuous drain current is rated at 478 A at 25°C case temperature. This is a case-limited rating — the actual current in your design depends on the thermal management of the PCB and heatsinking."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRL40SC209","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRL40SC209 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}}