{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD4NK50ZD-1","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD4NK50ZD-1","canonicalUrl":"https://icboms.com/stmicroelectronics/STD4NK50ZD-1","factsUrl":"https://icboms.com/api/mcp/products/STD4NK50ZD-1","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH™ STD4NK50ZD-1, N-Channel MOSFET, 500 V Vdss, 3 A Id, 2.7 Ohm Rds(on) at 10 V, TO-251 (IPAK) through-hole package.","salesMarkdown":"## 500 V, 3 A N-channel MOSFET — SuperMESH™ series The device is housed in a through-hole TO-251-3 (IPAK) package, suited for high-voltage switching applications such as flyback converters, auxiliary power supplies, and offline SMPS topologies where a compact, low-capacitance switch is needed. ## Obsolete — sourcing through independent distribution The STD4NK50ZD-1 is marked obsolete by STMicroelectronics. ## Key ratings for design margin The 500 V drain-source rating provides a solid voltage margin for universal-input offline converters (typical 400 V bulk rail after rectification).","metaTitle":"STD4NK50ZD-1 N-Channel MOSFET, 500 V, 3 A, SuperMESH™","metaDescription":"STD4NK50ZD-1 N-channel MOSFET, 500 V Vdss, 3 A Id, 2.7 Ohm Rds(on).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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-251-3 Short Leads, IPak, TO-251AA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4.5V @ 50µA","Base Product Number":"STD4N","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"2.7Ohm @ 1.5A, 10V","Power Dissipation (Max)":"45W (Tc)","Supplier Device Package":"I-PAK","Gate Charge (Qg) (Max) @ Vgs":"12 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"310 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"3A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/819e551dad59ed14f06c062061088b21.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STD4NK50ZD-1/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STD4NK50ZD-1?","answer":"For a functional replacement, look for an N-channel MOSFET in the same TO-251 (IPAK) package with a 500 V Vdss, 3 A Id rating, and similar gate charge and on-resistance. The SuperMESH series includes other voltage/current variants that may fit, but pin compatibility should be verified against the design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD4NK50ZD-1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD4NK50ZD-1 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}