{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STD5N95K3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STD5N95K3","canonicalUrl":"https://icboms.com/stmicroelectronics/STD5N95K3","factsUrl":"https://icboms.com/api/mcp/products/STD5N95K3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH3™ series, N-Channel MOSFET, 950 V drain-source, 4 A continuous drain, 3.5 Ohm Rds(on) at 10 V, DPAK (TO-252) surface mount, -55 to 150 °C junction temperature.","salesMarkdown":"## 950 V N-channel MOSFET in DPAK — the high-voltage workhorse The STD5N95K3: The 3.5 Ohm maximum Rds(on) at 10 V gate drive sets the conduction loss floor — at 2 A the dissipation runs about 14 W, so the 90 W package limit leaves thermal headroom for a properly heatsinked DPAK. ## Gate drive and switching — what the 10 V spec means The drive voltage for rated Rds(on) is 10 V, which is typical for standard-gate-threshold MOSFETs — not a logic-level part. The gate threshold maximum is 5 V at 100 µA, so a 5 V logic output won't fully enhance the channel; you need a gate driver that swings to 10 V or a bootstrap supply. Gate charge is 19 nC at 10 V, which is modest — a small driver IC or even a discrete totem-pole can switch it fast enough for a 70–100 kHz flyback without excessive cross-conduction. Input capacitance is 460 pF at 25 V drain, so the gate drive loop inductance matters more than the drive current capability for clean switching edges. ## Package and mounting — DPAK thermal reality The STD5N95K3 comes in the DPAK (TO-252) surface-mount package. The exposed tab on the top is the drain connection — it needs a good copper pour and via stitching to the inner-layer ground plane to get the heat out. Without that thermal management, the 90 W maximum dissipation is theoretical; in practice, at 4 A continuous you'll need forced air or a heatsink clipped to the tab. The package suits automated assembly, and the surface-mount footprint saves board space versus a TO-220 through-hole part in the same voltage class. ## Lifecycle and supply — no obsolescence worry","metaTitle":"STD5N95K3 N-Channel MOSFET, 950V, 4A, SuperMESH3™","metaDescription":"STD5N95K3 N-channel MOSFET from STMicroelectronics SuperMESH3™ series. 950V Vdss, 4A Id, 3.5 Ohm Rds(on), DPAK package. Active product, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"SuperMESH3™","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Surface Mount","Package / Case":"TO-252-3, DPak (2 Leads + Tab), SC-63","Product Status":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"5V @ 100µA","Base Product Number":"STD5N95","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"3.5Ohm @ 2A, 10V","Power Dissipation (Max)":"90W (Tc)","Supplier Device Package":"DPAK","Gate Charge (Qg) (Max) @ Vgs":"19 nC @ 10 V","Drain to Source Voltage (Vdss)":"950 V","Input Capacitance (Ciss) (Max) @ Vds":"460 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"4A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.1100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/c78a655001ee852717e11e0cd564a55a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the Rds(on) of STD5N95K3?","answer":"The maximum Rds(on) is 3.5 Ohms at a drain current of 2 A and a gate-to-source voltage of 10 V. This is the figure to use for worst-case conduction loss calculations in your power stage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STD5N95K3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STD5N95K3 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}}