{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STB85NF55LT4","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STB85NF55LT4","canonicalUrl":"https://icboms.com/stmicroelectronics/STB85NF55LT4","factsUrl":"https://icboms.com/api/mcp/products/STB85NF55LT4","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STripFET™ II STB85NF55LT4, N-Channel MOSFET, 55 V Vdss, 80 A continuous drain, 8 mOhm Rds(on) at 40 A, 10 V gate drive, D2PAK (TO-263-3), -55 to 175 °C.","salesMarkdown":"## 55 V, 80 A N-channel — the conduction-loss anchor The STB85NF55LT4 is a 55 V, 80 A N-channel MOSFET from ST's STripFET™ II generation, built for switching loads where on-resistance and thermal headroom are the binding constraints. ## Gate charge and drive voltage — what the 110 nC means for the driver Total gate charge is 110 nC at 5 V gate drive. ROHS3 compliant. The D2PAK (TO-263-3) package is a standard surface-mount power footprint with an exposed tab for thermal vias; the -55 to 175 °C junction range covers automotive under-hood and industrial motor-drive environments.","metaTitle":"STB85NF55LT4 N-Channel MOSFET, 55 V, 80 A, 8 mOhm D2PAK","metaDescription":"STripFET™ II N-channel MOSFET, 55 V Vdss, 80 A continuous drain, 8 mOhm Rds(on) at 40 A. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"STripFET™ II","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":[],"specifications":{"Series":"STripFET™ II","Package":"Tape & Reel (TR); Cut Tape (CT)","FET Type":"N-Channel","Vgs (Max)":"±15V","Technology":"MOSFET (Metal Oxide)","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Vgs(th) (Max) @ Id":"2.5V @ 250µA","Operating Temperature":"-55°C ~ 175°C (TJ)","Rds On (Max) @ Id, Vgs":"8mOhm @ 40A, 10V","Power Dissipation (Max)":"300W (Tc)","Supplier Device Package":"D2PAK","Gate Charge (Qg) (Max) @ Vgs":"110 nC @ 5 V","Drain to Source Voltage (Vdss)":"55 V","Input Capacitance (Ciss) (Max) @ Vds":"4050 pF @ 25 V","Drive Voltage (Max Rds On, Min Rds On)":"5V, 10V","Current - Continuous Drain (Id) @ 25°C":"80A (Tc)"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3","priceTiers":[{"qty":1,"price":"$3.30000","currency":"USD"},{"qty":10,"price":"$2.76900","currency":"USD"},{"qty":100,"price":"$2.23980","currency":"USD"},{"qty":500,"price":"$1.99092","currency":"USD"},{"qty":1000,"price":"$1.70472","currency":"USD"},{"qty":2000,"price":"$1.60518","currency":"USD"},{"qty":5000,"price":"$1.54000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/75338558ac1e267f5e1a8c16c1eb5c38.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STB85NF55LT4/alternatives.json"},"ai":{"faq":[{"question":"What is the Rds(on) of STB85NF55LT4 at 40 A?","answer":"This is the typical operating point for conduction-loss calculations."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STB85NF55LT4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STB85NF55LT4 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-20T14:34:45.345Z","lastPublished":"2026-07-20T14:34:45.345Z","indexable":true}}