{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"IRF9240","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"IRF9240","canonicalUrl":"https://icboms.com/infineon/IRF9240","factsUrl":"https://icboms.com/api/mcp/products/IRF9240","rawCanonicalId":null},"summary":{"shortDescription":"IRF9240, HEXFET P-Channel Power MOSFET, 200 V drain-source, 11 A continuous, 580 mOhm Rds(on) at 10 V gate drive, 60 nC gate charge, TO-220 through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"## 200 V P-Channel — high-side switching without a charge pump The IRF9240 is a P-Channel HEXFET power MOSFET rated for 200 V drain-source and 11 A continuous drain current. A P-Channel device at this voltage class lets you switch the high side of a 200 V rail with a gate drive referenced to the source — no bootstrap or charge-pump circuit needed. That simplifies the gate-drive transformer or isolated supply design in applications like offline flyback converters, motor-drive brake circuits, and high-voltage battery disconnect switches. ## 580 mOhm on-resistance — conduction loss at 11 A Rds(on) is specified at 580 mOhm maximum with Vgs=10 V and Id=11 A. At 11 A continuous, the conduction loss is I²R = 70 W — that sets the heatsink requirement. The 125 W package power rating provides headroom, but the junction-to-case thermal path through the TO-220 tab needs a proper heatsink for sustained 11 A operation. The gate threshold is 4 V maximum at 250 µA, so a 10 V gate drive ensures the device is fully enhanced. ## 60 nC gate charge — driver budget Total gate charge is 60 nC at Vgs=10 V. For a 100 kHz switching frequency, the average gate-drive current is Qg × f = 6 mA — well within the capability of a standard gate-driver IC. The gate-source voltage is rated ±20 V, so the driver output must not overshoot beyond that absolute maximum during turn-on ringing. The through-hole TO-220 package suits point-to-point wiring, terminal blocks, and high-reliability solder joints in industrial power stages. The -55°C floor covers avionics cold-soak and outdoor telecom winter extremes; the 150°C ceiling allows the junction to rise above the case temperature under full load without immediate derating. The 125 W power dissipation rating assumes the case is held at 25°C — real-world derating follows the thermal resistance of the heatsink assembly.","metaTitle":"IRF9240 P-Channel HEXFET MOSFET, 200 V, 11 A, TO-220","metaDescription":"IRF9240 P-Channel HEXFET power MOSFET, 200 V drain-source, 11 A continuous, 580 mOhm Rds(on). Active production.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Vgs":"±20 V","series":"HEXFET®","power_w":"125.0","Fet Type":"P-Channel","package_type":"Bulk","mounting_type":"Through Hole","capacitance_uf":"0.0012","product_status":"Active","lifecycle_stage":"eol_hot","supply_voltage_v":"200.0","Vgs(Th) (Max) @ Id":"4 V @ 250µA","switching_current_a":"11.0","Rds On (Max) @ Id, Vgs":"580mOhm @ 11 A, 10 V","Operating Temperature High":"-55°C to 150°C(TJ)","Gate Charge (Qg) (Max) @ Vgs":"60 nC @ 10 V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.20","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/25615ebdf6b29c1fc5a9f534493df6c1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the IRF9240 a P-Channel MOSFET?","answer":"Yes. The IRF9240 is a P-Channel enhancement-mode power MOSFET from the HEXFET series. A P-Channel device switches the high side of a positive supply rail when the gate is pulled below the source voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/IRF9240","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/IRF9240 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}}