{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STP78N75F4","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STP78N75F4","canonicalUrl":"https://icboms.com/stmicroelectronics/STP78N75F4","factsUrl":"https://icboms.com/api/mcp/products/STP78N75F4","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics DeepGATE™, STripFET™ series, N-Channel MOSFET, 75 V Drain-Source Voltage, 78 A Continuous Drain Current, 11 mOhm Rds(on) at 39 A, 10 V, TO-220-3 Through Hole, -55°C to 175°C Junction Temperature.","salesMarkdown":"The 76 nC total gate charge at 10 V is moderate — a typical gate-driver IC with 1 A to 2 A peak source/sink will switch it in the tens of nanoseconds, but the 5015 pF input capacitance at 25 V drain-source means the driver's output impedance and the gate-loop inductance matter for clean edges and ringing control. For a production BOM that already uses this part, the path is either last-time-buy inventory still in the channel (sealed reels with consistent date-codes are the cleanest source) or a qualified replacement from the same function class — same TO-220 footprint, similar Rds(on) and voltage rating. A buyer sourcing this today is working the surplus and independent distribution channel, not the factory-authorized pipeline. ## Thermal and mounting — the TO-220 tab is the heat path Through-hole mounting is straightforward for a rework or proto run, but for volume production the same function in a D²PAK or TO-263 surface-mount variant might save a wave-solder step.","metaTitle":"STP78N75F4 N-Channel MOSFET, 75V, 78A, TO-220, Obsolete","metaDescription":"STMicroelectronics STP78N75F4 N-channel MOSFET, 75V Vdss, 78A Id, 11mOhm Rds(on) at 10V. DeepGATE/STripFET series. TO-220 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"DeepGATE™, 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":"4V @ 250µA","Base Product Number":"STP78N","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"11mOhm @ 39A, 10V","Power Dissipation (Max)":"150W (Tc)","Supplier Device Package":"TO-220","Gate Charge (Qg) (Max) @ Vgs":"76 nC @ 10 V","Drain to Source Voltage (Vdss)":"75 V","Input Capacitance (Ciss) (Max) @ Vds":"5015 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"78A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f34de60168d47a8755bc863ec4fe1b10.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STP78N75F4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy the STP78N75F4?","answer":"The STP78N75F4 is obsolete and sourced through independent distribution. It is available to order against an RFQ — submit a request for current availability and pricing. No stock or price figures are published here."},{"question":"Is the STP78N75F4 obsolete?","answer":"Yes, STMicroelectronics lists the product status as obsolete. There is no official replacement part number from ST. For a production BOM, the best path is surplus inventory with consistent date-codes or a functionally equivalent MOSFET from another manufacturer in the same TO-220 footprint."},{"question":"What is the Rds(on) of the STP78N75F4?","answer":"This is the figure to use for worst-case conduction loss calculations in the power stage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STP78N75F4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STP78N75F4 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}}