{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"1N5820RL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"1N5820RL","canonicalUrl":"https://icboms.com/stmicroelectronics/1N5820RL","factsUrl":"https://icboms.com/api/mcp/products/1N5820RL","rawCanonicalId":null},"summary":{"shortDescription":"ON Semiconductor 1N5820RL Schottky rectifier, 20 V reverse voltage, 3 A average rectified current, 475 mV forward drop at 3 A, DO-201AD axial package, Tape & Reel.","salesMarkdown":"## Schottky rectifier for low-voltage, high-efficiency rectification The ON Semiconductor 1N5820RL is a 20 V, 3 A Schottky barrier rectifier in a DO-201AD axial-lead package. Its forward voltage drop is 475 mV at the full 3 A forward current, which keeps conduction losses low in power-supply output rectification, freewheeling diodes, and polarity-protection circuits. The Schottky technology gives it a fast recovery characteristic — typically under 500 ns — so it handles switching frequencies above 200 mA without the reverse-recovery losses of a PN-junction diode. The 20 V reverse voltage (Vr max) sets the rail voltage this diode can block. In a 12 V or 15 V bus, the 20 V rating leaves about 5 V of headroom — enough for most switching transients, but not for 24 V systems. The 3 A average rectified current (Io) is the DC load it can carry continuously. For a 2 A output supply this is comfortable; for a 3 A rail you are running at the absolute limit and should derate for ambient temperature rise. The junction temperature ceiling is 150°C, so the thermal path through the axial leads into the PCB or heatsink determines how much current you can actually pull. No last-time-buy date or successor part is recorded in the official lifecycle data. That means the only available stock is new-old-stock or surplus inventory held by independent distributors.","metaTitle":"1N5820RL Schottky Rectifier, 20 V 3 A DO-201AD, Obsolete","metaDescription":"1N5820RL Schottky rectifier: 20 V, 3 A, 475 mV Vf at 3 A, DO-201AD axial package. Marked obsolete.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR)","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"DO-201AD, Axial","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"1N58","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-201AD","Current - Reverse Leakage @ Vr":"2 mA @ 20 V","Voltage - DC Reverse (Vr) (Max)":"20 V","Current - Average Rectified (Io)":"3A","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"475 mV @ 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a4e456ed82950362efc2b7c60cf62f0a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/1N5820RL/alternatives.json"},"ai":{"faq":[{"question":"What is a direct replacement for 1N5820RL?","answer":"A direct pin-compatible replacement needs to match the DO-201AD axial package, 20 V reverse voltage, and 3 A current rating. Common cross-shop candidates include the 1N5820 (non-tape-and-reel variant) or the 1N5821 (30 V version) if voltage headroom is needed. No single official ON Semiconductor replacement is listed; verify forward voltage drop and leakage at your operating temperature before committing the BOM."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/1N5820RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/1N5820RL when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:33:01.427Z","lastPublished":"2026-07-16T14:33:01.427Z","indexable":true}}