{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF12N50DM2","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF12N50DM2","canonicalUrl":"https://icboms.com/stmicroelectronics/STF12N50DM2","factsUrl":"https://icboms.com/api/mcp/products/STF12N50DM2","rawCanonicalId":null},"summary":{"shortDescription":"ST MDmesh™ DM2 N-Channel MOSFET, 500 Vdss, 11 A Id, TO-220FP full-pack, 350 mOhm Rds(on) @ 10 V, 16 nC Qg, -55 to 150 °C.","salesMarkdown":"## 500 V, 11 A N-channel MOSFET in isolated TO-220FP The STF12N50DM2 is an N-channel power MOSFET from ST's MDmesh™ DM2 series, rated for 500 V drain-to-source voltage and 11 A continuous drain current at 25 °C case temperature. That saves assembly time and keeps the thermal path consistent in offline flyback converters, PFC stages, and auxiliary power supplies where the heatsink is chassis-grounded. At that drive voltage the channel is fully enhanced, so conduction loss in a 100 W-class flyback primary is predictable: 350 mOhm times the RMS current squared gives the I²R loss you budget for. ## Temperature range and package — deployment fit That cuts BOM cost by one part and eliminates a thermal interface joint. The 25 W power dissipation limit at case temperature is the thermal budget to work with; a heatsink sized to keep the case below 100 °C at full load leaves margin for the 150 °C junction limit. For designs requiring a fully isolated package with a 500 V / 11 A rating in the MDmesh DM2 family, this part is a current-production choice that does not trigger a PCN review at this time.","metaTitle":"STF12N50DM2 MOSFET N-CH 500V 11A TO-220FP, MDmesh DM2","metaDescription":"STF12N50DM2 N-channel 500V 11A MOSFET in TO-220FP full-pack. 350 mOhm Rds(on) at 10V, 16 nC gate charge. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"MDmesh™ DM2","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™ DM2","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±25V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"5V @ 250µA","Base Product Number":"STF12","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"350mOhm @ 5.5A, 10V","Power Dissipation (Max)":"25W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"16 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"628 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"11A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0900","priceTiers":[{"qty":1,"price":"$2.09000","currency":"USD"},{"qty":10,"price":"$1.87400","currency":"USD"},{"qty":100,"price":"$1.50660","currency":"USD"},{"qty":500,"price":"$1.23784","currency":"USD"},{"qty":1000,"price":"$1.16778","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/fd4b78a7ba28e2bc7765ae7cd6149f18.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STF12N50DM2/alternatives.json"},"ai":{"faq":[{"question":"What are the specifications of STF12N50DM2?","answer":"It is an N-channel MOSFET rated at 500 V drain-to-source voltage, 11 A continuous drain current at 25 °C, 350 mOhm maximum on-resistance at 5.5 A and 10 V gate drive, 16 nC typical gate charge at 10 V, and a junction temperature range of -55 °C to 150 °C. It comes in a TO-220FP full-pack package."},{"question":"Is STF12N50DM2 RoHS compliant?","answer":"Yes, it is ROHS3 compliant."},{"question":"How does STF12N50DM2 compare to STP12N50DM2?","answer":"Both share the same die — 500 V, 11 A, 350 mOhm Rds(on), 16 nC Qg — but the STF version uses the TO-220FP full-pack with an isolated tab, while the STP version uses a standard TO-220 with a live tab. The STF saves the insulating washer and suits chassis-grounded heatsinks; the STP needs an insulator but offers slightly better thermal resistance to the heatsink."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF12N50DM2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF12N50DM2 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}}