{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STF7LN80K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STF7LN80K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STF7LN80K5","factsUrl":"https://icboms.com/api/mcp/products/STF7LN80K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STF7LN80K5, MDmesh™ series, N-Channel MOSFET, 800 V Vdss, 5 A continuous drain, 1.15 Ohm RDS(on) at 10 V, TO-220-3 Full Pack, through hole, -55°C to 150°C junction.","salesMarkdown":"## 800 V MDmesh N-channel — what this part is for With an 800 V drain-source breakdown and 5 A continuous drain current, it slots into flyback converters, PFC stages, and auxiliary power supplies where the primary-side switch sees a rectified 400 V DC bus plus reflected voltage margin. The on-resistance is specified at 1.15 Ohm maximum with 2.5 A drain current and 10 V gate drive. That 10 V drive level is the recommended operating point for minimum RDS(on); the gate threshold is 5 V maximum at 100 µA, so a standard 12 V or 15 V gate-drive rail from a PWM controller or driver IC lands squarely in the sweet spot. ## TO-220 Full Pack — thermal and mechanical fit The TO-220FP body is the fully moulded, isolated-tab variant. No metal tab exposed — the mounting hole is through the plastic, and the back of the package is the resin over the die pad. That means the 25 W power dissipation limit (at case temperature) is the ceiling, and the thermal path to the heatsink goes through the plastic, not a metal tab. Expect higher junction-to-case thermal resistance than a standard TO-220; the trade-off is no isolation hardware. For a 5 A, 800 V part in an offline supply, the full-pack package is common where the heatsink is chassis-grounded and you want to skip the sil-pad or mica washer. ## Active status — no LTB risk ST's MDmesh portfolio is broad, and this is a current mainstream voltage/current tier.","metaTitle":"STF7LN80K5 N-Channel MOSFET, 800 V, 5 A, TO-220FP","metaDescription":"STF7LN80K5 N-channel 800 V 5 A MOSFET in TO-220 Full Pack. RDS(on) 1.15 Ohm max at 10 V. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","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 @ 100µA","Base Product Number":"STF7","Operating Temperature":"-55°C~150°C(TJ)","Rds On (Max) @ Id, Vgs":"1.15Ohm @ 2.5A, 10V","Power Dissipation (Max)":"25W (Tc)","Supplier Device Package":"TO-220FP","Gate Charge (Qg) (Max) @ Vgs":"12 nC @ 10 V","Drain to Source Voltage (Vdss)":"800 V","Input Capacitance (Ciss) (Max) @ Vds":"270 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"5A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.1900","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/209f211be89f3d78f6b82bc089c43658.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the RDS(on) of STF7LN80K5?","answer":"The maximum on-resistance is 1.15 Ohm at 2.5 A drain current with 10 V gate drive."},{"question":"Can I use STF7LN80K5 for 800 V applications?","answer":"Yes, the drain-to-source voltage rating is 800 V, which covers offline converters operating from a 400 V DC bus with reflected voltage margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STF7LN80K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STF7LN80K5 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}}