{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF4N90K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF4N90K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF4N90K5","factsUrl":"https://icboms.com/api/mcp/products/STF4N90K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STF4N90K5 MDmesh K5 N-Channel MOSFET, 900 Vdss, 4 A continuous drain, 2.1 Ohm Rds(on) at 10 V gate drive, TO-220FP through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"The STF4N90K5: Total gate charge is 5.3 nC at 10 V, and input capacitance measures 173 pF at 100 V drain bias. These low values keep the gate-drive energy per cycle small — a 1 A gate-driver IC can switch this FET at 100 kHz without exceeding its drive current budget. Maximum power dissipation is 20 W at case temperature. ROHS3 compliant. The base product number is STF4N90, so the K5 suffix identifies the MDmesh generation; no pin-compatible second source or official replacement is documented in the available records.","metaTitle":"STF4N90K5 MOSFET N-CH 900V 4A TO-220FP, MDmesh K5","metaDescription":"STF4N90K5 N-channel 900V 4A MOSFET in TO-220FP. 2.1 Ohm Rds(on), 5.3 nC 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":"STF4N90","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"2.1Ohm @ 1A, 10V","Power Dissipation (Max)":"20W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"5.3 nC @ 10 V","Drain to Source Voltage (Vdss)":"900 V","Input Capacitance (Ciss) (Max) @ Vds":"173 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"4A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0400","priceTiers":[{"qty":1,"price":"$2.04000","currency":"USD"},{"qty":50,"price":"$1.63660","currency":"USD"},{"qty":100,"price":"$1.34650","currency":"USD"},{"qty":500,"price":"$1.13938","currency":"USD"},{"qty":1000,"price":"$0.96675","currency":"USD"},{"qty":2000,"price":"$0.91842","currency":"USD"},{"qty":5000,"price":"$0.88389","currency":"USD"},{"qty":10000,"price":"$0.85463","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/618adc71c93ea316d5ecb9d2a0a62639.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STF4N90K5/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement or cross reference for STF4N90K5?","answer":"No official replacement or cross-reference part is documented in the available records. The STF4N90K5 is the current MDmesh K5 generation; if a direct alternative is needed, compare the 900 V, 4 A, 2.1 Ohm Rds(on) ratings against other TO-220FP N-channel MOSFETs in the same voltage class."},{"question":"What does the MDmesh K5 series mean for this MOSFET?","answer":"The MDmesh K5 series is ST's high-voltage MOSFET platform that uses a multi-drain mesh structure to reduce on-resistance while maintaining fast switching. For the STF4N90K5, this translates to the low 5.3 nC gate charge and 173 pF input capacitance at 100 V drain bias, which keeps switching losses low in hard-switched topologies."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF4N90K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF4N90K5 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}}