{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BUZ73AH3046","brand":"Infineon Technologies","brandSlug":"infineon","productSlug":"BUZ73AH3046","canonicalUrl":"https://icboms.com/infineon/BUZ73AH3046","factsUrl":"https://icboms.com/api/mcp/products/BUZ73AH3046","rawCanonicalId":null},"summary":{"shortDescription":"Infineon SIPMOS® BUZ73AH3046, N-Channel Power MOSFET, 200 Vdss, 5.5 A continuous drain, 600 mOhm Rds(on) at 10 V, TO-220-3 through-hole package, -55°C to 150°C junction temperature.","salesMarkdown":"The BUZ73AH3046 is listed with an active product status. ## 200 V, 5.5 A — where this fits on the board Think offline flyback primary switch, DC-DC converter input stage, or a motor pre-drive where the bus sits around 48–120 V. The 600 mOhm max Rds(on) at 10 V gate drive means conduction loss is manageable up to a couple of amps; beyond that the I²R heating starts to eat into the 40 W power dissipation budget. ## Gate drive and switching edges The gate threshold is specified at 4 V max with 1 mA drain current, and the recommended drive voltage for minimum Rds(on) is 10 V. That is a standard logic-level gate — a 5 V PWM from a microcontroller will not fully enhance it; you need a gate driver that swings to 10 V. Input capacitance is 530 pF at 25 V drain, which keeps the gate charge low enough that a small driver IC or a discrete totem-pole can switch it at tens of kilohertz without excessive cross-conduction. ## TO-220-3 — field-swappable, no hot air needed The PG-TO220-3-1 package is a standard three-lead through-hole TO-220. It bolts to a heatsink with a single screw, and the leads solder into a PCB or can be crimped into a terminal block in a panel-wiring scenario. For a field repair technician, this is the kind of part you can swap on site with a soldering iron and a screwdriver — no reflow profile, no hot-air station, no ESD bench needed beyond a basic wrist strap. The wide junction temperature range from -55°C to 150°C means it survives the thermal cycling of an outdoor enclosure or an engine bay without derating.","metaTitle":"Infineon BUZ73AH3046 N-Channel MOSFET, 200 V, 5.5 A","metaDescription":"Infineon SIPMOS® BUZ73AH3046 N-channel power MOSFET, 200 Vdss, 5.5 A continuous drain, 600 mOhm Rds(on) at 10 V. Active lifecycle, TO-220-3 package.","metaKeywords":null},"attributes":{"series":"SIPMOS®","packageCase":null,"mountingType":null,"rohsStatus":"Not applicable","productStatus":"Active","categoryPath":[],"specifications":{"Series":"SIPMOS®","Package":"Bulk","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-220-3","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"4V @ 1mA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"600mOhm @ 4.5A, 10V","Power Dissipation (Max)":"40W (Tc)","Supplier Device Package":"PG-TO220-3-1","Drain to Source Voltage (Vdss)":"200 V","Input Capacitance (Ciss) (Max) @ Vds":"530 pF @ 25 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":"$0.4","stockQuantity":0,"priceTiers":[{"qty":751,"price":"$0.40000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a19137d80129513eed371f12c9de6ca2.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is the BUZ73AH3046 obsolete or still active?","answer":"It carries an active lifecycle status."},{"question":"What is the Rds(on) of the BUZ73AH3046?","answer":"The maximum on-resistance is 600 mOhm at a drain current of 4.5 A and a gate drive of 10 V. That is the figure to use for worst-case conduction loss calculations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/infineon/BUZ73AH3046","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/infineon/BUZ73AH3046 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}}