{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF15N80K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF15N80K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF15N80K5","factsUrl":"https://icboms.com/api/mcp/products/STF15N80K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH5™ series, STF15N80K5, N-Channel MOSFET, 800V Vdss, 14A Id, 375mOhm Rds(on) at 10V, 32nC Qg, TO-220FP through-hole, -55°C to 150°C junction.","salesMarkdown":"## 800 V N-channel in a full-pack TO-220 The STF15N80K5 is an 800 V, 14 A N-channel power MOSFET from ST's SuperMESH5™ series, built on a strip-layout vertical DMOS process that targets low gate charge and fast switching in offline power supplies. ## 375 mOhm on-resistance — conduction loss anchor That 10 V drive level is the design target — the part is optimised for a Vgs of 10 V, not 5 V logic-level drive. At 7 A the conduction loss works out to about 18 W, which sits within the 35 W power dissipation rating at the case, but the junction-to-case thermal resistance of the full-pack package means the heatsink selection is the real limiter. ## Gate charge and input capacitance — switching speed budget For a 100 kHz hard-switched flyback, the gate drive needs to source about 3.2 mA average current — a standard PWM controller's totem-pole output handles that without an external driver. The 1100 pF Ciss also sets the Miller plateau duration; expect a few tens of nanoseconds of plateau time, which keeps the switching loss reasonable in a QR or active-clamp topology. ## Temperature envelope and threshold voltage The maximum gate threshold voltage is 5 V at 100 µA drain current — a 10 V drive ensures the FET is fully enhanced across the full temperature range, because Vgs(th) drops roughly 4 mV/°C as the junction heats. At 150°C junction, a 5 V gate signal may not keep the device in the ohmic region; the 10 V drive voltage eliminates that risk.","metaTitle":"STF15N80K5 N-Channel 800V MOSFET, 375mOhm Rds(on), TO-220FP","metaDescription":"STF15N80K5 SuperMESH5™ N-channel MOSFET, 800V Vdss, 14A Id, 375mOhm Rds(on) at 10V. TO-220FP full-pack.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"SuperMESH5™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"5V @ 100µA","Base Product Number":"STF15","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"375mOhm @ 7A, 10V","Power Dissipation (Max)":"35W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"32 nC @ 10 V","Drain to Source Voltage (Vdss)":"800 V","Input Capacitance (Ciss) (Max) @ Vds":"1100 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"14A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.4400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0ed842593d1ec0b93fe3487786aa25da.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of STF15N80K5?","answer":"Maximum on-resistance is 375 mOhm at 7 A drain current and 10 V gate drive. That is the worst-case figure at 25°C junction; at elevated temperature the Rds(on) increases per the normalised curve in the datasheet, roughly 1.5× at 125°C junction."},{"question":"What package is STF15N80K5 in?","answer":"The STF15N80K5 is supplied in a TO-220 Full Pack (TO-220FP) through-hole package. The full-pack moulding isolates the metal tab from the drain, so no insulating hardware is needed when mounting to a heatsink."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF15N80K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF15N80K5 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}