{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPR2420CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPR2420CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPR2420CT","factsUrl":"https://icboms.com/api/mcp/products/STPR2420CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPR2420CT, Fast Recovery Rectifier, 200 V DC Reverse, 12 A Average Rectified per Diode, 30 ns Reverse Recovery, 990 mV Forward, 1 Pair Common Cathode, TO-220-3 Through Hole.","salesMarkdown":"## 30 ns reverse recovery — the switching edge The 30 ns reverse recovery time (trr) puts this in the fast-recovery class — rated for switching frequencies where a standard recovery rectifier would overheat from reverse current losses. This matters in a 200 V rail flyback or forward converter where the diode sees hard commutation. The 990 mV forward drop at 12 A is typical for a 200 V fast-recovery part in this current tier; expect some thermal derating above 100°C junction temperature, which is rated to 150°C max. ## Common-cathode pair in TO-220 — layout fit Two 12 A diodes share a common cathode in a single TO-220-3 package. That configuration maps directly to center-tap full-wave rectifier stages — the common cathode ties to the output rail, and the two anodes connect to each secondary winding end. The through-hole TO-220 case bolts to a heatsink via the metal tab (which is cathode potential), so the thermal path is straightforward. Reverse leakage is 50 µA at the 200 V rated voltage, which is clean for a 200 V design margin.","metaTitle":"STPR2420CT Fast Recovery Diode","metaDescription":"STPR2420CT fast recovery rectifier: 200V Vr, 12A Io per diode, 30ns trr, 990mV Vf at 12A, TO-220-3 common cathode.","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","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPR2420","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Reverse Recovery Time (trr)":"30 ns","Current - Reverse Leakage @ Vr":"50 µA @ 200 V","Voltage - DC Reverse (Vr) (Max)":"200 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"990 mV @ 12 A","Current - Average Rectified (Io) (per Diode)":"12A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3200","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPR2420CT/alternatives.json"},"ai":{"faq":[{"question":"What are the specifications of STPR2420CT?","answer":"The STPR2420CT is a 200 V, 12 A per diode fast recovery rectifier with 30 ns reverse recovery time, 990 mV forward voltage at 12 A, 50 µA reverse leakage at 200 V, in a common-cathode dual-diode TO-220-3 through-hole package, rated for 150°C maximum junction temperature."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPR2420CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPR2420CT 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}}