{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF7NM50N","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF7NM50N","canonicalUrl":"https://icboms.com/stmicroelectronics/STF7NM50N","factsUrl":"https://icboms.com/api/mcp/products/STF7NM50N","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STF7NM50N, MDmesh™ II N-Channel MOSFET, 500 V Vdss, 5 A Id, 780 mOhm Rds(on), TO-220-3 Full Pack (TO-220FP), Through Hole, -55°C to 150°C junction.","salesMarkdown":"## Obsolete — sourcing the STF7NM50N for a BOM line The STF7NM50N is officially obsolete per the manufacturer lifecycle record. The 500 V drain-to-source breakdown voltage suits offline flyback converters, PFC stages, and auxiliary power supplies where the DC bus sits at 380 V or below. ## TO-220FP full-pack — rework and mounting The TO-220FP (TO-220 Full Pack) is a through-hole package with the die tab fully encapsulated in moulding compound. No metal tab is exposed, so you don't need an insulating washer or pad when bolting it to a heatsink — the plastic body provides isolation. Rework is straightforward: three through-hole leads, easy to desolder with a solder sucker or wick. The package is marked clearly, so orientation is not a problem under the hot-air station. ## Gate drive and switching — 12 nC total gate charge For a 100 kHz flyback, the gate-drive loss is negligible, but the 4 V threshold maximum at 250 µA means you need a clean 10 V gate drive to guarantee the lowest on-resistance — don't rely on 5 V logic to fully enhance the channel. The 150°C maximum junction is typical for power MOSFETs; derate the drain current and power dissipation above 25°C case temperature per the datasheet curve. The wide low end matters for outdoor or cold-start applications.","metaTitle":"STF7NM50N N-Channel MOSFET, 500 V, 5 A, TO-220FP, Obsolete","metaDescription":"STF7NM50N N-Channel MOSFET from STMicroelectronics MDmesh™ II series. 500 V drain-source, 5 A continuous, 780 mOhm Rds(on), TO-220FP full-pack.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™ II","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":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Base Product Number":"STF7N","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"780mOhm @ 2.5A, 10V","Power Dissipation (Max)":"20W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"12 nC @ 10 V","Drain to Source Voltage (Vdss)":"500 V","Input Capacitance (Ciss) (Max) @ Vds":"400 pF @ 50 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"5A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/7ef8073322c8b2f1e7ae566561608f4b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STF7NM50N/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STF7NM50N?","answer":"The official manufacturer successor is not listed in the available records. For a pin-compatible alternative in the same TO-220FP package with similar 500 V / 5 A ratings, evaluate the STF5N60M2 or STF6N62K3 from ST's MDmesh series — confirm the gate charge and Rds(on) match your switching frequency and thermal budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF7NM50N","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF7NM50N 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}}