{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF20N90K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF20N90K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF20N90K5","factsUrl":"https://icboms.com/api/mcp/products/STF20N90K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STF20N90K5, MDmesh™ K5 series, N-Channel MOSFET, 900 V drain-source, 20 A continuous drain (Tc=25°C), 250 mOhm Rds(on) at 10 V, TO-220-3 Full Pack through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"The STF20N90K5: The fully isolated TO-220FP package (TO-220-3 Full Pack) eliminates the need for an insulating pad between the device and the heatsink, simplifying assembly and improving thermal coupling — the metal tab is electrically isolated, so the heatsink can share a common ground without extra hardware. ## Gate drive and switching — 40 nC Qg at 10 V For volume BOM lines, this part is a low single-source risk as long as the MDmesh K5 platform stays active.","metaTitle":"STF20N90K5 N-Channel MOSFET, 900 V, 20 A, TO-220FP","metaDescription":"STF20N90K5 N-Channel MOSFET from STMicroelectronics MDmesh K5 series. 900 V Vdss, 20 A continuous drain, 250 mOhm Rds(on) at 10 V.","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":"STF20","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"250mOhm @ 10A, 10V","Power Dissipation (Max)":"40W (Tc)","Supplier Device Package":"TO-220FP","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":"$6.8100","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f2c5106399cc99f96a4d091645db45c4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STF20N90K5/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STF20N90K5 at 10 V?","answer":"The maximum on-resistance is 250 mOhm at 10 V gate drive with 10 A drain current. This is the figure to use for worst-case conduction loss calculations in the switching stage."},{"question":"What is the maximum drain current of STF20N90K5?","answer":"The continuous drain current is rated at 20 A at a case temperature of 25°C. Derating is required for higher case temperatures; the device can handle 20 A only with adequate heatsinking and airflow."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF20N90K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF20N90K5 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}}