{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BYW51G-200-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BYW51G-200-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/BYW51G-200-TR","factsUrl":"https://icboms.com/api/mcp/products/BYW51G-200-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BYW51G-200-TR, Fast Recovery =< 500ns, > 200mA (Io), Standard Diode, 1 Pair Common Cathode, 200 V, 10 A, 35 ns trr, 850 mV Vf, D2PAK, Surface Mount.","salesMarkdown":"## What this 35 ns fast recovery rectifier does for your power stage The 35 ns trr cuts switching losses in continuous-conduction-mode PFC stages and flyback snubbers, where a slow diode would overheat the junction. The 850 mV forward drop at 8 A keeps conduction losses manageable for a 10 A rated device in a D2PAK package. The common-cathode pair matches center-tapped secondary windings and half-bridge topologies without an extra discrete diode. A buyer should verify date code freshness and request a counterfeit screen on any surplus stock. ## D2PAK footprint and thermal design The tab is the common-cathode node and carries the bulk of the heat. A proper via-stitched copper pad under the tab is required to keep junction temperature below the 150°C maximum when running 10 A per diode. The D2PAK footprint is standard across the industry, so a board designed for this part can accept pin-compatible fast-recovery dual diodes from other manufacturers if a second source is needed.","metaTitle":"STMicroelectronics BYW51G-200-TR Fast Recovery Diode","metaDescription":"STMicroelectronics BYW51G-200-TR is a 35 ns fast recovery rectifier diode, 10 A average per diode, 200 V Vr, in D2PAK. 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)","Diode Type":"Standard","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"BYW51","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D2PAK","Reverse Recovery Time (trr)":"35 ns","Current - Reverse Leakage @ Vr":"15 µA @ 200 V","Voltage - DC Reverse (Vr) (Max)":"200 V","Operating Temperature - Junction":"150°C(Max)","Voltage - Forward (Vf) (Max) @ If":"850 mV @ 8 A","Current - Average Rectified (Io) (per Diode)":"10A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/922acfeb05a612ca176d4ed85108d55b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/BYW51G-200-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of the BYW51G-200-TR?","answer":"The reverse recovery time (trr) is 35 ns, which qualifies it as a fast recovery rectifier suitable for switching frequencies above 50 kHz in PFC and flyback converters."},{"question":"Is the BYW51G-200-TR obsolete?","answer":"Yes, the BYW51G-200-TR is listed as Obsolete. No direct replacement is specified by STMicroelectronics, so buyers should source from surplus inventory or evaluate a pin-compatible fast-recovery dual diode in D2PAK from another manufacturer."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BYW51G-200-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BYW51G-200-TR 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}}