{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BYW99W-200","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BYW99W-200","canonicalUrl":"https://icboms.com/stmicroelectronics/BYW99W-200","factsUrl":"https://icboms.com/api/mcp/products/BYW99W-200","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BYW99W-200 dual common-cathode fast recovery diode, 200 V, 15 A per diode, 40 ns trr, TO-247-3, -40°C to 150°C junction.","salesMarkdown":"## Dual fast-recovery diode in TO-247-3 The STMicroelectronics BYW99W-200 is a dual common-cathode fast recovery diode rated for 200 V reverse voltage and 15 A average rectified current per diode, with a reverse recovery time of 40 ns. The 40 ns trr makes it suitable for switching power supplies, motor drive snubbers, and flyback circuits where recovery speed reduces switching losses. ## 40 ns trr — switching loss impact The 40 ns reverse recovery time is the key parameter for hard-switched topologies. In a 100 kHz PFC boost stage, that recovery speed keeps the diode's turn-off loss well below what a standard recovery part would incur, letting you run smaller heatsinks or push output current. The common-cathode pair also simplifies layout for center-tapped rectifiers — one TO-247-3 replaces two separate diodes, saving board space and reducing loop inductance. The BYW99W-200 is listed as obsolete by STMicroelectronics.","metaTitle":"STMicroelectronics BYW99W-200 Fast Recovery Diode, 40 ns trr","metaDescription":"STMicroelectronics BYW99W-200 dual common-cathode fast recovery diode, 200 V, 15 A per diode, 40 ns trr, TO-247-3.","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":"Tube","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-247-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"BYW99","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-247-3","Reverse Recovery Time (trr)":"40 ns","Current - Reverse Leakage @ Vr":"20 µA @ 200 V","Voltage - DC Reverse (Vr) (Max)":"200 V","Operating Temperature - Junction":"-40°C~150°C","Voltage - Forward (Vf) (Max) @ If":"850 mV @ 12 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6800","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/621aa4c5e4a24ddbd521b19d39cc82c7.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Where can I buy BYW99W-200?","answer":"Submit an RFQ for current availability and pricing — quotes are confirmed at order time."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BYW99W-200","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BYW99W-200 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-16T14:32:56.039Z","lastPublished":"2026-07-16T14:32:56.039Z","indexable":true}}