{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF8N90K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF8N90K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF8N90K5","factsUrl":"https://icboms.com/api/mcp/products/STF8N90K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MDmesh™ K5 series STF8N90K5, N-Channel MOSFET, 900 V drain-source, 8 A continuous drain current at 25°C, 130 W power dissipation, TO-220-3 Full Pack through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"The STF8N90K5: The 900 V drain-to-source rating gives you a solid derating margin for universal-input offline designs that see transient spikes up to 800 V or more. That saves assembly time and improves thermal transfer in a crowded chassis. ## Temperature range and gate threshold — the bench reality Maximum gate threshold voltage is 5 V at 100 µA drain current. 10 V gate drive needed for lowest Rds(on). ±30 V maximum gate-source rating. Active lifecycle. 900 V drain-source. 8 A continuous drain current.","metaTitle":"STF8N90K5 N-Channel MOSFET, 900 V, 8 A, TO-220FP","metaDescription":"STF8N90K5 N-Channel MOSFET from STMicroelectronics MDmesh K5 series. 900 V drain-source, 8 A continuous, 130 W dissipation. TO-220FP package. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™ K5","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":"STF8","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"-","Power Dissipation (Max)":"130W (Tc)","Supplier Device Package":"TO-220FP","Drain to Source Voltage (Vdss)":"900 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"8A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/186e5e4ce740fc97ac1bfef24a907b48.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STF8N90K5/alternatives.json"},"ai":{"faq":[{"question":"What is the Vgs threshold of the STF8N90K5?","answer":"The maximum gate threshold voltage is 5 V at a drain current of 100 µA. This is a standard threshold for a 10 V gate-drive part — do not expect it to turn on fully with a 5 V logic signal."},{"question":"What is the maximum power dissipation of the STF8N90K5?","answer":"The maximum power dissipation is 130 W at the case temperature (Tc). That figure assumes the case is held at 25°C — in practice, derate based on your heatsink and ambient temperature."},{"question":"What is the difference between the STF8N90K5 and the STF8N80K5?","answer":"The primary difference is the drain-to-source voltage rating: the STF8N90K5 is rated for 900 V, while the STF8N80K5 is an 800 V part. Both are in the same MDmesh K5 family and share the same TO-220FP package and pinout, so they are footprint-compatible. Choose the 900 V version when you need extra voltage margin for universal-input designs or applications with high transient spikes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF8N90K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF8N90K5 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}}