{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF9N80K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF9N80K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF9N80K5","factsUrl":"https://icboms.com/api/mcp/products/STF9N80K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STF9N80K5, MDmesh™ N-Channel MOSFET, 800 V Vdss, 7 A Id, 900 mOhm Rds(on) @ 3.5 A, 10 V, TO-220-3 Full Pack, Through Hole, -55°C to 150°C.","salesMarkdown":"These numbers point to a device that can switch at moderate frequencies without burning excessive drive power in the gate driver circuit. The 800 V Vdss gives you headroom for 400 VDC bus rails in power factor correction stages or flyback converters. The 7 A continuous rating is a package-limited figure at 25°C case — derate it if the case runs hot, and the 25 W power dissipation ceiling is the real thermal constraint when you size the heatsink. If you drive the gate at lower voltage, the on-resistance climbs — the Vgs(th) max of 5 V at 100 µA tells you the threshold is high enough that 5 V logic won't fully enhance it. Plan for a 10 V gate rail or a dedicated gate driver. The TO-220FP package means the mounting tab is electrically isolated, which is a real time-saver in assembly — no mica washer or sil-pad needed. But the plastic body conducts heat less efficiently than a standard TO-220, so the 25 W dissipation limit is lower than what a metal-tab version would carry. Keep the heatsink interface clean and use thermal compound.","metaTitle":"STF9N80K5 N-Channel MOSFET, 800V, 7A, TO-220FP","metaDescription":"STF9N80K5 MDmesh N-channel MOSFET, 800V Vdss, 7A Id, 900mOhm Rds(on). TO-220FP through-hole. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™","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":"STF9N80","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"900mOhm @ 3.5A, 10V","Power Dissipation (Max)":"25W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"12 nC @ 10 V","Drain to Source Voltage (Vdss)":"800 V","Input Capacitance (Ciss) (Max) @ Vds":"340 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"7A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.7500","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b2e4885777f6737a51abf1aa590a09eb.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest alternative to the STF9N80K5?","answer":"Within the ST MDmesh family, the STF9N80K5 is a specific voltage/current/Rds(on) combination in the TO-220FP package. Other MDmesh N-channel devices with similar voltage ratings may differ in current capability, on-resistance, or package. Check the parametric table for an exact match on 800 V, 7 A, and 900 mOhm in the same package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF9N80K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF9N80K5 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}}