{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPR620CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPR620CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPR620CT","factsUrl":"https://icboms.com/api/mcp/products/STPR620CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPR620CT, Fast Recovery Diode, 1 Pair Common Cathode, 200 V, 3 A per diode, 30 ns trr, TO-220-3, Through Hole.","salesMarkdown":"No last-time-buy window remains; any available stock is new-old-stock or surplus. ## 30 ns reverse recovery — the spec that defines the fit The headline rating on this part is the 30 ns reverse recovery time (trr). That places it in the fast-recovery class — suitable for hard-switching topologies like a 200 V PFC boost stage or a flyback snubber where recovery losses and EMI matter. The 990 mV forward drop at 3 A is typical for a 200 V-class fast diode at this current density; thermal design should budget for that drop at the operating current. ## TO-220 dual common-cathode — footprint and circuit role The 1 Pair Common Cathode configuration in a TO-220-3 package means the two diode cathodes are tied internally to the tab. The anode connections are pins 1 and 3. This is a standard pinout for a dual rectifier in a TO-220 — the common cathode is the mounting surface, so the tab is at cathode potential. Through-hole mounting, no exposed paddle. The package is the familiar TO-220 outline, supplier device package TO-220. The tab is electrically live; if a heatsink is used, an insulating pad is needed unless the heatsink is at cathode potential. ## Temperature and leakage — the margin reality Junction temperature rating is 150°C max. The reverse leakage at 200 V is 50 µA — that's at 25°C; expect leakage to roughly double every 10°C rise, so at 125°C junction it's in the milliamps. That's normal for a fast recovery diode and should be factored into standby loss estimates. The 50 µA at 200 V spec is the maximum at room temperature; typical is lower.","metaTitle":"STPR620CT Fast Recovery Diode, 200 V, 30 ns trr, TO-220","metaDescription":"STMicroelectronics STPR620CT obsolete dual common-cathode fast recovery rectifier. 200 V, 3 A per diode, 30 ns trr, TO-220.","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":"STPR620","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 @ 3 A","Current - Average Rectified (Io) (per Diode)":"3A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.2900","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/323cb1e46e1e37ad64173c0e914aea27.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPR620CT/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPR620CT?","answer":"No official replacement part number is listed by STMicroelectronics. For a drop-in functional replacement, look for a 200 V, 3 A, common-cathode dual fast recovery diode with 30 ns or faster trr in a TO-220 package. Parts from other manufacturers with similar ratings exist, but pinout and thermal performance must be verified against the original."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPR620CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPR620CT 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}}