{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP11NK40Z","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP11NK40Z","canonicalUrl":"https://icboms.com/stmicroelectronics/STP11NK40Z","factsUrl":"https://icboms.com/api/mcp/products/STP11NK40Z","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STP11NK40Z, SuperMESH™ N-Channel MOSFET, 400V Vdss, 9A Id, 550mOhm Rds(on), TO-220-3 through-hole, -55°C to 150°C.","salesMarkdown":"## 400 V, 9 A — where this MOSFET fits the BOM The STP11NK40Z: This part is aimed at offline switch-mode power supplies, AC-DC converters, and lighting ballasts where the 400 V blocking voltage provides adequate derating for 240 VAC rectified rails. The 4.5 V maximum gate threshold at 100 µA drain current means a 10 V gate drive is needed to guarantee the on-resistance spec; at 5 V drive the Rds(on) will be significantly higher, so logic-level gate signals won't cut it. The SuperMESH™ technology includes avalanche energy rating, though the ledger does not specify the single-pulse or repetitive limit — treat the 110 W dissipation as the thermal ceiling for steady-state operation.","metaTitle":"STP11NK40Z N-Channel MOSFET, 400V, 9A, TO-220-3","metaDescription":"STP11NK40Z N-Channel MOSFET from STMicroelectronics SuperMESH™ series. 400V Vdss, 9A Id, 550mOhm Rds(on). Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"SuperMESH™","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":"4.5V @ 100µA","Base Product Number":"STP11","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"550mOhm @ 4.5A, 10V","Power Dissipation (Max)":"110W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"32 nC @ 10 V","Drain to Source Voltage (Vdss)":"400 V","Input Capacitance (Ciss) (Max) @ Vds":"930 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"9A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/dd2f79edf1b917e257f9535a51737f04.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP11NK40Z/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STP11NK40Z?","answer":"The maximum on-resistance is 550 mOhm at 4.5 A drain current with 10 V gate drive. This is the value to use for worst-case conduction loss calculations."},{"question":"Can STP11NK40Z replace STP11NK40?","answer":"The STP11NK40Z is the Zener-protected variant of the STP11NK40 series, featuring enhanced avalanche ruggedness. Pin-compatibility depends on the specific package and gate-drive requirements; verify the gate threshold and Rds(on) match your application before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP11NK40Z","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP11NK40Z 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}}