{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP20N90K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP20N90K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STP20N90K5","factsUrl":"https://icboms.com/api/mcp/products/STP20N90K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MDmesh™ K5 series, STP20N90K5, N-Channel MOSFET, 900V Vdss, 20A Id, 250mOhm Rds(on) at 10A 10V, 40nC Qg, TO-220-3, -55°C to 150°C.","salesMarkdown":"## 900 V, 20 A — where this MOSFET fits The STP20N90K5: The 900 V Vdss suits high-voltage offline power supplies, flyback converters, PFC stages, and auxiliary power circuits in industrial and telecom equipment. ## Conduction and switching — the numbers that matter Gate charge totals 40 nC at 10 V. Input capacitance is 1500 pF at 100 V drain bias — this is the dominant term in the driver's dynamic load at turn-on. The gate threshold voltage is 5 V maximum at 100 µA, so a 10 V drive rail is the safe choice to guarantee the lowest Rds(on) across the full operating temperature range. Through-hole TO-220-3 package, supplier device package TO-220. The exposed metal tab is the drain — it must be electrically isolated from the heatsink or the heatsink must be at drain potential. ROHS3 compliant. The base product number is STP20, so variant options (different Rds(on) or voltage ratings in the same package) share the same footprint.","metaTitle":"STP20N90K5 MOSFET N-CH 900V 20A TO-220, 250mOhm Rds(on)","metaDescription":"STP20N90K5 N-channel 900V 20A MOSFET in TO-220, 250mOhm Rds(on) at 10A, 40nC gate charge. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"MDmesh™ K5","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"5V @ 100µA","Base Product Number":"STP20","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"250mOhm @ 10A, 10V","Power Dissipation (Max)":"250W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"40 nC @ 10 V","Drain to Source Voltage (Vdss)":"900 V","Input Capacitance (Ciss) (Max) @ Vds":"1500 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"20A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.7900","priceTiers":[{"qty":1,"price":"$6.79000","currency":"USD"},{"qty":10,"price":"$5.82000","currency":"USD"},{"qty":100,"price":"$4.85000","currency":"USD"},{"qty":500,"price":"$4.27942","currency":"USD"},{"qty":1000,"price":"$3.85148","currency":"USD"},{"qty":2000,"price":"$3.60898","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6821e68a02efed18a6cd887e70f24aba.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP20N90K5/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STP20N90K5?","answer":"Maximum Rds(on) is 250 mOhm at 10 A drain current with 10 V gate drive. This is the spec to use for worst-case conduction loss calculations at 25°C junction; expect the on-resistance to increase by roughly 50% at 125°C junction per typical MOSFET behaviour."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP20N90K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP20N90K5 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}}