{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STU4N80K5","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STU4N80K5","canonicalUrl":"https://icboms.com/stmicroelectronics/STU4N80K5","factsUrl":"https://icboms.com/api/mcp/products/STU4N80K5","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics SuperMESH5™ STU4N80K5, N-channel 800 V 3 A MOSFET, TO-251 IPAK through-hole, 2.5 Ohm Rds(on) at 10 V, 10.5 nC gate charge, -55 to 150 °C.","salesMarkdown":"## 800 V N-channel in a TO-251 IPAK — offline flyback and auxiliary supply switch The STU4N80K5: It is housed in a TO-251 (IPAK) through-hole package with short leads, a common footprint for low-profile board mounting where a TO-220 is too tall. The 10.5 nC total gate charge at 10 V means a standard PWM controller can drive it directly without a separate gate driver IC. ## Parametric fit for 240 VAC flyback and PFC stages The 800 V Vdss provides a 400 V derating margin over a 400 VDC bus (rectified 240 VAC), covering transients and leakage inductance spikes in single-switch flyback converters. The 175 pF input capacitance at 100 V drain bias keeps switching losses low at frequencies up to 100 kHz. Gate threshold voltage is specified at 5 V maximum with 100 µA drain current, ensuring the device is fully enhanced with a standard 10 V gate drive. The ±30 V Vgs max rating gives headroom for gate ringing without avalanche failure.","metaTitle":"STU4N80K5 N-Channel MOSFET, 800V 3A, SuperMESH5™ IPAK","metaDescription":"STMicroelectronics STU4N80K5 N-channel 800V 3A MOSFET in TO-251 IPAK. 2.5 Ohm Rds(on), 10.5 nC gate charge, -55 to 150°C.","metaKeywords":null},"attributes":{"series":"SuperMESH5™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"SuperMESH5™","Package":"Tube","FET Type":"N-Channel","Vgs (Max)":"±30V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Through Hole","Package / Case":"TO-251-3 Short Leads, IPak, TO-251AA","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"5V @ 100µA","Operating Temperature":"-55°C ~ 150°C (TJ)","Rds On (Max) @ Id, Vgs":"2.5Ohm @ 1.5A, 10V","Power Dissipation (Max)":"60W (Tc)","Supplier Device Package":"TO-251 (IPAK)","Gate Charge (Qg) (Max) @ Vgs":"10.5 nC @ 10 V","Drain to Source Voltage (Vdss)":"800 V","Input Capacitance (Ciss) (Max) @ Vds":"175 pF @ 100 V","Drive Voltage (Max Rds On, Min Rds On)":"10V","Current - Continuous Drain (Id) @ 25°C":"3A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.57","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.57000","currency":"USD"},{"qty":10,"price":"$1.30700","currency":"USD"},{"qty":100,"price":"$1.04050","currency":"USD"},{"qty":500,"price":"$0.88042","currency":"USD"},{"qty":1000,"price":"$0.74702","currency":"USD"},{"qty":2000,"price":"$0.70967","currency":"USD"},{"qty":5000,"price":"$0.68299","currency":"USD"},{"qty":10000,"price":"$0.66038","currency":"USD"}]},"links":{"datasheetUrl":"https://www.st.com/content/ccc/resource/technical/document/datasheet/b3/40/e1/43/80/ab/4b/f6/DM00092669.pdf/files/DM00092669.pdf/jcr:content/translations/en.DM00092669.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STU4N80K5","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STU4N80K5 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}}