{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD7NM50N-1","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD7NM50N-1","canonicalUrl":"https://icboms.com/stmicroelectronics/STD7NM50N-1","factsUrl":"https://icboms.com/api/mcp/products/STD7NM50N-1","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STD7NM50N-1, N-Channel MOSFET, MDmesh™ II, 500 V Vdss, 5 A Id, 780 mOhm Rds(on), 12 nC Qg, TO-251-3 IPak through-hole, -55 to 150 °C.","salesMarkdown":"## 500 V N-channel in a TO-251 IPak — what you need to know The STD7NM50N-1: It is housed in a TO-251-3 (IPak) through-hole package, which suits medium-power switched-mode circuits where board-space is constrained but through-hole mounting is preferred for thermal and mechanical robustness. The 780 mOhm maximum on-resistance at 2.5 A gate drive defines its conduction loss profile; paired with the 12 nC typical gate charge, it is sized for flyback converters, auxiliary power supplies, and PFC stages in the 50–150 W range. This means STMicroelectronics has ended production; no further last-time-buy windows are open. Stock that surfaces carries date codes from the final production run — verify provenance and date-code integrity before committing to a volume buy. ## What the 500 V / 5 A rating means for your design The 500 V Vdss rating gives headroom for offline rectified DC rails (typical 375 V bus) with margin for switching transients. The 5 A continuous drain current is specified at case temperature 25°C; derate linearly with Tc.","metaTitle":"STD7NM50N-1 N-Channel MOSFET, 500V 5A, MDmesh™ II, TO-251","metaDescription":"STD7NM50N-1 N-Channel MOSFET, 500V drain-source, 5A continuous, 780mOhm Rds(on), MDmesh™ II series, TO-251-3 IPak.","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-251-3 Short Leads, IPak, TO-251AA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Base Product Number":"STD7","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"780mOhm @ 2.5A, 10V","Power Dissipation (Max)":"45W (Tc)","Supplier Device Package":"I-PAK","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/STD7NM50N-1/alternatives.json"},"ai":{"faq":[{"question":"What is the cross reference for STD7NM50N-1?","answer":"STMicroelectronics has not published an official cross-reference or successor for the STD7NM50N-1. The closest parametric match would be another N-channel 500 V MOSFET in a TO-251 (IPak) package with 5 A continuous drain current and 780 mOhm or lower Rds(on). Verify the gate charge, threshold voltage, and switching characteristics against your application before substituting."},{"question":"Can STD7NM50N-1 be used in high-frequency circuits?","answer":"The 12 nC gate charge and 400 pF input capacitance at 50 V bias are moderate for a 500 V MOSFET, making it suitable for switching frequencies in the 50–150 kHz range typical of flyback and PFC stages. Above 200 kHz the switching losses may become significant due to the Miller charge; evaluate the total gate-drive loss and switching transition times in your specific topology."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD7NM50N-1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD7NM50N-1 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}}