{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP120NH03L","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP120NH03L","canonicalUrl":"https://icboms.com/stmicroelectronics/STP120NH03L","factsUrl":"https://icboms.com/api/mcp/products/STP120NH03L","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STripFET™ N-Channel MOSFET, STP120NH03L, 30V Vdss, 60A Id, 5.5mOhm Rds(on) @ 10V, TO-220-3, -55°C to 175°C junction temperature.","salesMarkdown":"## 5.5 mOhm Rds(on) — the conduction loss number that matters That is the condition you design your thermal budget around. At 60 A full load, expect the dissipation to climb — the 110 W maximum power dissipation rating at the case tells you this part needs a good heatsink or forced air to stay within the 175°C junction temperature limit. The gate threshold voltage maxes out at 3 V at 250 µA, so a 5 V logic-level drive will turn it on, but the Rds(on) will be higher than the 10 V figure — the drive voltage range is listed as 5 V to 10 V. This makes the STP120NH03L suitable for environments with extreme thermal cycling, such as under-hood automotive, industrial motor drives in hot enclosures, or power supplies in outdoor telecom cabinets. The 175°C ceiling gives extra headroom for derating when the case runs hot. ## Gate charge and input capacitance — what drives the switching speed These numbers tell you the gate driver needs to source and sink enough current to switch the MOSFET quickly. A 77 nC gate charge at a few hundred kHz is manageable with a standard gate driver IC, but at higher frequencies the switching losses will dominate. The ±20 V maximum gate-to-source voltage gives you room to drive it hard without worrying about oxide breakdown.","metaTitle":"ST STP120NH03L N-Channel MOSFET, 30V, 60A, TO-220","metaDescription":"STMicroelectronics STP120NH03L N-channel STripFET MOSFET, 30V Vdss, 60A Id, 5.5mOhm Rds(on). TO-220 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"STripFET™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±20V","Technology":"MOSFET (Metal Oxide)","FET Feature":"-","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"3V @ 250µA","Base Product Number":"STP120","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"5.5mOhm @ 30A, 10V","Power Dissipation (Max)":"110W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"77 nC @ 10 V","Drain to Source Voltage (Vdss)":"30 V","Input Capacitance (Ciss) (Max) @ Vds":"4100 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"5V, 10V","Current - Continuous Drain (Id) @ 25°C":"60A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/70b01d4dddcccd72701ea53000337bf4.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP120NH03L/alternatives.json"},"ai":{"faq":[{"question":"Is the STP120NH03L obsolete?","answer":"Yes, the STP120NH03L carries an Obsolete lifecycle status. STMicroelectronics has discontinued production, and there is no official replacement part listed. Any remaining units are available only through the surplus market."},{"question":"What is the Rds(on) of the STP120NH03L?","answer":"The maximum Rds(on) is 5.5 mOhm at 30 A drain current with 10 V gate-to-source drive. It is also specified with a drive voltage range of 5 V to 10 V, so at lower gate voltages the on-resistance will be higher."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP120NH03L","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP120NH03L 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}}