{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP3NK50Z","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP3NK50Z","canonicalUrl":"https://icboms.com/stmicroelectronics/STP3NK50Z","factsUrl":"https://icboms.com/api/mcp/products/STP3NK50Z","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH™ N-channel MOSFET, STP3NK50Z, 500 V Vdss, 2.3 A continuous drain, 3.3 Ohm Rds(on) at 10 V, 15 nC gate charge, TO-220-3 through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"## 3.3 Ohm Rds(on) and 15 nC gate charge — switching performance The STP3NK50Z: The gate charge of 15 nC at 10 V and input capacitance of 280 pF at 25 V support switching in flyback and forward converters. ## Through-hole TO-220 — mounting and thermal design The TO-220-3 package is a through-hole, three-lead format with a metal tab for heatsink mounting. The supplier device package is TO-220, which accepts a standard M3 screw or spring clip for thermal interface to a heatsink. Maximum power dissipation is 45 W at case temperature, so adequate heatsinking is required above a few watts of continuous dissipation.","metaTitle":"STP3NK50Z N-Channel MOSFET, 500 V, 2.3 A, TO-220","metaDescription":"STP3NK50Z N-channel 500 V 2.3 A MOSFET in TO-220. SuperMESH series, 3.3 Ohm Rds(on), 15 nC gate charge. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","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":"Not For New Designs","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4.5V @ 50µA","Base Product Number":"STP3NK50","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"3.3Ohm @ 1.15A, 10V","Power Dissipation (Max)":"45W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"15 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"280 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"2.3A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.7700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/b12c97c8486e12e723eb7bf828396650.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP3NK50Z/alternatives.json"},"ai":{"faq":[{"question":"Is STP3NK50Z obsolete or still available?","answer":"It is not yet fully discontinued but is not recommended for new designs. Existing production can still source it through independent channels, but a last-time-buy or replacement plan should be in place."},{"question":"What is the replacement for STP3NK50Z?","answer":"An official replacement is not listed in the available records. A suitable substitute would be a pin-compatible 500 V N-channel MOSFET in TO-220 with similar Rds(on) and gate charge — evaluate parts from the same SuperMESH family or from competitors like Infineon or onsemi, verifying footprint and drive voltage compatibility."},{"question":"Is STP3NK50Z suitable for through-hole mounting?","answer":"Yes, the STP3NK50Z is designed for through-hole mounting in a TO-220-3 package. The three leads insert into a PCB, and the metal tab can be bolted to a heatsink for thermal management."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP3NK50Z","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP3NK50Z when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T15:08:27.398Z","lastPublished":"2026-07-16T15:08:27.398Z","indexable":true}}