{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STFI9N60M2","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STFI9N60M2","canonicalUrl":"https://icboms.com/stmicroelectronics/STFI9N60M2","factsUrl":"https://icboms.com/api/mcp/products/STFI9N60M2","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STFI9N60M2, MDmesh™ II Plus series, N-Channel MOSFET, 600 V Vdss, 5.5 A Id, 780 mOhm Rds(on), TO-251-3 (IPak) through-hole package.","salesMarkdown":"It comes in a through-hole TO-251-3 (IPak) package — the short-lead variant that suits compact, low-profile board layouts where a full TO-220 lead form is too tall. The MDmesh II Plus technology gives you a fast-recovery body diode and good dv/dt ruggedness, which matters in hard-switching topologies like flyback and PFC stages where the diode conducts during dead time. ## 780 mOhm on-resistance — sizing the conduction loss That is the figure you use for worst-case conduction loss in the thermal budget. At 5.5 A the Rds(on) will be higher than the 780 mOhm number — the datasheet curve matters for the real operating point. The drive voltage spec is 10 V for the lowest Rds(on); if your gate drive is 5 V only, expect the on-resistance to roughly double, so check the transfer characteristic before locking the gate-drive rail. These are low numbers for a 600 V part — the gate driver does not need to supply much current, and switching losses at moderate frequencies (say 65–100 kHz) stay manageable. The low Qg also means the Miller plateau is short, which helps reduce cross-conduction in half-bridge configurations. Keep the gate loop tight on the PCB to avoid ringing; the ±25 V maximum gate rating gives some headroom for overshoot. ## Package and handling — TO-251 (IPak) with short leads The STFI9N60M2 is supplied in a TO-251-3 package (IPak, TO-251AA) with short leads — a through-hole package that takes up less board height than a TO-220. The tab is not electrically isolated from the drain, so the heatsink or mounting surface must be insulated or kept at drain potential. No lab bench needed for the swap — standard soldering iron and a pair of cutters if you are replacing one on a board.","metaTitle":"STFI9N60M2 N-Channel MOSFET, 600 V, 5.5 A, MDmesh II Plus","metaDescription":"STFI9N60M2 N-channel 600 V MOSFET, 5.5 A continuous drain, 780 mOhm Rds(on). TO-251 (IPak) package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"MDmesh™ II Plus","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":"Active","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 250µA","Base Product Number":"STFI9","Operating Temperature":"150°C(TJ)","Rds On (Max) @ Id, Vgs":"780mOhm @ 3A, 10V","Power Dissipation (Max)":"20W (Tc)","Supplier Device Package":"I2PAKFP (TO-281)","Gate Charge (Qg) (Max) @ Vgs":"10 nC @ 10 V","Drain to Source Voltage (Vdss)":"600 V","Input Capacitance (Ciss) (Max) @ Vds":"320 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"5.5A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/42be8dc789c0033b9ba62ccb82503da6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STFI9N60M2/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy STFI9N60M2 and what is the price?","answer":"The STFI9N60M2 is available to order through independent distribution. No stock count or price is published here."},{"question":"What is the equivalent or replacement for STFI9N60M2?","answer":"For a pin-compatible alternative, look for other 600 V N-channel MOSFETs in the TO-251 package from the same MDmesh II Plus family — the base product number STFI9 covers the 9 A rated variants. Confirm the Rds(on) and gate charge match your design targets before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STFI9N60M2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STFI9N60M2 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}}