{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STW9NK90Z","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STW9NK90Z","canonicalUrl":"https://icboms.com/stmicroelectronics/STW9NK90Z","factsUrl":"https://icboms.com/api/mcp/products/STW9NK90Z","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH™, STW9NK90Z, N-Channel MOSFET, 900 V, 8 A, 1.3 Ohm @ 3.6 A, 10 V, 72 nC @ 10 V, TO-247-3, Through Hole, -55°C ~ 150°C.","salesMarkdown":"## 900 V N-channel in a TO-247-3 The STW9NK90Z is an N-channel MOSFET from STMicroelectronics' SuperMESH series, rated for 900 V drain-to-source and 8 A continuous drain current at 25°C case temperature. It comes in a through-hole TO-247-3 package, a standard footprint for high-voltage power stages in switched-mode power supplies, PFC boost converters, and flyback topologies. The 1.3 Ohm maximum on-resistance at 10 V gate drive and 3.6 A drain current defines the conduction loss budget for a given load. Gate charge of 72 nC at 10 V sets the switching energy and the drive current requirement from the gate-driver IC. The 900 V Vdss provides headroom for offline rectified voltages plus switching overshoot. The 8 A continuous rating at case temperature 25°C must be derated for actual heatsink and ambient conditions; the 160 W maximum power dissipation at Tc is the thermal limit the heatsink must stay under. The 1.3 Ohm Rds(on) at 10 V gate drive means the device is fully enhanced with a standard 10 V gate signal — common for MOSFET drivers in SMPS controllers. Input capacitance of 2115 pF at 25 V drain bias is moderate for a 900 V part, keeping the Miller plateau manageable for hard-switched topologies. It is ROHS3 compliant. No last-time-buy or obsolescence risk is present on the manufacturer's record.","metaTitle":"STW9NK90Z MOSFET, N-Ch 900V 8A TO-247-3, SuperMESH","metaDescription":"STW9NK90Z N-channel 900V 8A MOSFET in TO-247-3. SuperMESH series, 1.3 Ohm Rds(on) at 10V. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"SuperMESH™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"SuperMESH™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-247-3","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4.5V @ 100µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"1.3Ohm @ 3.6A, 10V","Power Dissipation (Max)":"160W (Tc)","Supplier Device Package":"TO-247-3","Gate Charge (Qg) (Max) @ Vgs":"72 nC @ 10 V","Drain to Source Voltage (Vdss)":"900 V","Input Capacitance (Ciss) (Max) @ Vds":"2115 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"8A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.32","priceTiers":[{"qty":1,"price":"$4.54000","currency":"USD"},{"qty":10,"price":"$4.07600","currency":"USD"},{"qty":100,"price":"$3.33940","currency":"USD"},{"qty":500,"price":"$2.84280","currency":"USD"},{"qty":1000,"price":"$2.82730","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c5ab32a4eab6cdfe30e955b459f05d75.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STW9NK90Z/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STW9NK90Z?","answer":"The STW9NK90Z is a standard TO-247-3 N-channel MOSFET. Within the same SuperMESH series, ST offers multiple 900 V devices in the same footprint with varying current and Rds(on) ratings. No single direct replacement is listed in the manufacturer's cross-reference for this specific order code. For a BOM freeze, verify the exact Rds(on) and gate charge requirements before selecting an alternate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STW9NK90Z","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STW9NK90Z when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:51:14.863Z","lastPublished":"2026-07-22T18:51:14.863Z","indexable":true}}