{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP14NK50Z","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP14NK50Z","canonicalUrl":"https://icboms.com/stmicroelectronics/STP14NK50Z","factsUrl":"https://icboms.com/api/mcp/products/STP14NK50Z","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH™ N-Channel MOSFET, STP14NK50Z, 500 V drain-source, 14 A continuous drain, 380 mOhm Rds(on), TO-220-3 through-hole package.","salesMarkdown":"## 500 V, 14 A switching — conduction loss and drive budget The STP14NK50Z is an N-channel 500 V, 14 A MOSFET from STMicroelectronics' SuperMESH™ series, housed in a TO-220 through-hole package. The 500 V drain-source rating (Vdss) suits it for offline flyback converters, 3-phase motor drive bus rails, and auxiliary power supplies where the DC link sits at 380 V or higher. Total gate charge (Qg) is 92 nC at 10 V. A gate driver sourcing 1 A charges the gate in roughly 92 ns, setting the practical switching frequency ceiling — above 100 kHz the gate drive loss (Qg × Vgs × fsw) becomes a significant fraction of the 150 W package dissipation limit. Input capacitance (Ciss) is 2000 pF typical at 25 V drain-source. This capacitance, together with the gate charge, determines the switching energy per cycle — in a hard-switched topology the Coss losses scale with Vds² and frequency, so the 2000 pF figure feeds into the loss budget at the design stage. Maximum gate-source voltage is ±30 V, providing margin against drive overshoot in circuits where the gate drive transformer or bootstrap supply rings during switching transitions. ## Lifecycle and compliance status RoHS compliance is confirmed at the ROHS3 level, covering the ten restricted substances including the four phthalates added under EU 2015/863.","metaTitle":"STMicroelectronics STP14NK50Z N-Ch MOSFET, 500 V, 14 A","metaDescription":"STP14NK50Z N-channel 500 V 14 A MOSFET in TO-220. SuperMESH series, 380 mOhm Rds(on), 92 nC gate charge. Active production, ROHS3 compliant. Request a quote.","metaKeywords":null},"attributes":{"series":"SuperMESH™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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":"STP14","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"380mOhm @ 6A, 10V","Power Dissipation (Max)":"150W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"92 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"2000 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"14A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.0800","priceTiers":[{"qty":1,"price":"$4.08000","currency":"USD"},{"qty":10,"price":"$3.42600","currency":"USD"},{"qty":100,"price":"$2.77170","currency":"USD"},{"qty":500,"price":"$2.46376","currency":"USD"},{"qty":1000,"price":"$2.10959","currency":"USD"},{"qty":2000,"price":"$1.98640","currency":"USD"},{"qty":5000,"price":"$1.90575","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/2173ee9fe967d95ad4dc042b21dcb189.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP14NK50Z/alternatives.json"},"ai":{"faq":[{"question":"Will STP14NK50Z drop into a board that was specified around STP17NK40ZFP without rewiring?","answer":"Both parts share the same TO-220-3 footprint and pinout (gate, drain, source). The STP14NK50Z has a higher 500 V drain-source rating versus 400 V for the STP17NK40ZFP, and a higher 380 mOhm Rds(on) versus 250 mOhm. The board layout is compatible, but the higher on-resistance increases conduction loss — verify the thermal budget at your operating current before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP14NK50Z","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP14NK50Z 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}}