{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD10NM50N","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD10NM50N","canonicalUrl":"https://icboms.com/stmicroelectronics/STD10NM50N","factsUrl":"https://icboms.com/api/mcp/products/STD10NM50N","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics MDmesh™ II series, N-Channel MOSFET, STD10NM50N, 500V Vdss, 7A Id @ 25°C, 630mOhm Rds(on) @ 10V, 17nC Qg, DPAK (TO-252) surface-mount package.","salesMarkdown":"The STMicroelectronics STD10NM50N is a 500 V N-channel power MOSFET from the MDmesh™ II series. The 17 nC gate charge is specified at 10 V. ## Gate drive voltage — 10 V is mandatory, not optional This is not a logic-level MOSFET — driving it from a 5 V rail will leave the channel partially enhanced, with on-resistance roughly double the spec. Your gate-driver circuit needs a 10-12 V rail, either from a bootstrap supply or a dedicated regulator. The maximum gate-source voltage is ±25 V, so a 12 V rail with a 15 V zener clamp is safe. ## Switching performance — low Qg for the voltage class The input capacitance is 450 pF at 50 V drain-source, so the driver doesn't need to sink large peak currents. This combination of Qg and Ciss means a simple bootstrap driver IC or even a discrete push-pull stage works. The MDmesh™ II process reduces the Miller plateau, which helps with EMI — you'll see cleaner switching edges than an older planar MOSFET at the same voltage. ## Thermal reality — 70 W max, but derate aggressively The 70 W power dissipation is at case temperature 25°C, which is a lab condition. In a real enclosed power supply at 85°C ambient, the usable dissipation drops to maybe 20-25 W with a decent copper area on the DPAK tab. The 150°C maximum junction temperature gives headroom, but Rds(on) roughly doubles at 125°C junction, so conduction losses climb faster than you'd budget from the 25°C spec. ## Obsolete — the sourcing picture This means STMicroelectronics has stopped production; there is no last-time-buy window open. New designs should not use this part.","metaTitle":"STD10NM50N N-Channel MOSFET, 500V, 7A, DPAK, Obsolete","metaDescription":"STD10NM50N MDmesh™ II N-Channel MOSFET, 500V Vdss, 7A Id, 630mOhm Rds(on), DPAK package. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™ II","Package":"Tape & Reel (TR)","FET Type":"N-Channel","Vgs (Max)":"±25V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Base Product Number":"STD10","Operating Temperature":"150°C (TJ)","Rds On (Max) @ Id, Vgs":"630mOhm @ 3.5A, 10V","Power Dissipation (Max)":"70W (Tc)","Supplier Device Package":"DPAK","Gate Charge (Qg) (Max) @ Vgs":"17 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"450 pF @ 50 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"7A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8731","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/734f5c95b65dee9c6209beb30b15b20e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STD10NM50N/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STD10NM50N?","answer":"The maximum on-resistance is 630 mOhm at 3.5 A drain current with 10 V gate drive. This spec requires a 10 V gate drive — driving from 5 V will not achieve this value."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD10NM50N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD10NM50N 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}}