{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"BYW51FP-200","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"BYW51FP-200","canonicalUrl":"https://icboms.com/stmicroelectronics/BYW51FP-200","factsUrl":"https://icboms.com/api/mcp/products/BYW51FP-200","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics BYW51FP-200 — dual common-cathode fast recovery rectifier, 200 V Vrrm, 10 A per diode, 35 ns trr, TO-220 Full Pack (TO-220FP) through-hole package.","salesMarkdown":"## Dual fast-recovery diode in a fully isolated package The TO-220 Full Pack (TO-220FP) package is fully isolated — no separate insulating washer needed, which simplifies assembly and improves thermal transfer to the heatsink. A 35 ns reverse recovery time at 200 V reverse voltage and 8 A forward current puts this diode in the fast-recovery class. In a 100 kHz hard-switched converter, that trr keeps the recovery charge low enough to avoid excessive turn-on loss in the companion MOSFET. The 850 mV forward drop at 8 A is a reasonable trade-off for the speed — a standard recovery diode would drop less but ring through the switching node. For rework, the three leads are on 2.54 mm pitch and the body is keyed; a standard desoldering station clears the holes cleanly.","metaTitle":"BYW51FP-200 Fast Recovery Diode, 200 V 10 A, TO-220FP","metaDescription":"BYW51FP-200 fast recovery diode: 200 V, 10 A per diode, 35 ns trr, TO-220FP.","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","Technology":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-220-3 Full Pack","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"BYW51","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220FP","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/BYW51FP-200/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for BYW51FP-200?","answer":"There is no official STMicroelectronics successor listed for the BYW51FP-200. The BYW51-200 (non-isolated TO-220) has the same electrical ratings — 200 V, 10 A per diode, 35 ns trr — but lacks the fully isolated TO-220FP package. For a fully isolated replacement, evaluate other TO-220FP fast recovery dual diodes with matching voltage and current ratings."},{"question":"What is the maximum reverse recovery time of BYW51FP-200?","answer":"The reverse recovery time (trr) is 35 ns at the rated forward current and reverse voltage conditions."},{"question":"What is the difference between BYW51FP-200 and BYW51-200?","answer":"The BYW51FP-200 uses the fully isolated TO-220 Full Pack (TO-220FP) package; the BYW51-200 uses a standard TO-220 with an exposed metal tab. Electrically they share the same 200 V, 10 A per diode, 35 ns trr ratings. The FP version does not require an insulating pad for heatsink mounting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/BYW51FP-200","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/BYW51FP-200 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}