{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STFI6N65K3","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STFI6N65K3","canonicalUrl":"https://icboms.com/stmicroelectronics/STFI6N65K3","factsUrl":"https://icboms.com/api/mcp/products/STFI6N65K3","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH3™ series, N-Channel MOSFET, 650 V drain-source, 5.4 A continuous drain, 1.3 Ohm Rds(on) at 10 V, ±30 Vgs max, 33 nC gate charge, 880 pF input capacitance, 30 W dissipation, TO-262-3 full-pack (I2PAK), through-hole.","salesMarkdown":"## 650 V SuperMESH3™ N-channel — obsolete, but available on the spot desk The STMicroelectronics STFI6N65K3 is a 650 V, 5.4 A N-channel power MOSFET built on the SuperMESH3™ technology platform. It's a through-hole device in the TO-262 full-pack package, where the full-pack construction means the tab is electrically isolated — no mica washer needed, which saves assembly time in off-line power supplies and auxiliary converters. Rds(on) is specified at 1.3 Ohm maximum with 2.7 A drain current and 10 V gate drive. For a new design, ST's current SuperMESH3 and MDmesh families include many 650 V N-channel MOSFETs in TO-220, DPAK, and D2PAK packages that would be a better fit. If you need a drop-in replacement for an existing BOM line, the base product number STFI6N suggests the I2PAK full-pack footprint — confirm the pinout and package dimensions against the candidate replacement before committing the board. ## Full-pack I2PAK — no isolation hardware needed The TO-262 full-pack (I2PAK) package is a through-hole, isolated-tab design. This saves a BOM line and a manual assembly step. The trade-off is slightly higher thermal resistance compared to a standard TO-220 with a pad, so check the junction temperature at your operating point against the 150 °C TJ maximum.","metaTitle":"STFI6N65K3 N-Channel MOSFET, 650 V, 5.4 A, SuperMESH3","metaDescription":"STMicroelectronics STFI6N65K3 N-Channel MOSFET, 650 Vdss, 5.4 A, 1.3 Ohm Rds(on), SuperMESH3 series, TO-262 full-pack. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"SuperMESH3™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-262-3 Full Pack, I²Pak","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4.5V @ 50µA","Base Product Number":"STFI6N","Operating Temperature":"150°C (TJ)","Rds On (Max) @ Id, Vgs":"1.3Ohm @ 2.7A, 10V","Power Dissipation (Max)":"30W (Tc)","Supplier Device Package":"I2PAKFP (TO-281)","Gate Charge (Qg) (Max) @ Vgs":"33 nC @ 10 V","Drain to Source Voltage (Vdss)":"650 V","Input Capacitance (Ciss) (Max) @ Vds":"880 pF @ 50 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"5.4A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.7100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/fa864fa47c28dbc26e74adceb6b230c5.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy STFI6N65K3?","answer":"STFI6N65K3 is obsolete from STMicroelectronics. We source it through independent distribution — submit an RFQ and we will locate available inventory, verify authenticity, and provide current pricing and lead time at quote time. No stock figures or prices are published here."},{"question":"What is the replacement for STFI6N65K3?","answer":"For a new design, consider current-generation 650 V N-channel MOSFETs from ST's MDmesh or updated SuperMESH3 families, but verify the package footprint (I2PAK full-pack, TO-262) and pinout against any candidate before substituting on an existing board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STFI6N65K3","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STFI6N65K3 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}}