{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH2003CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH2003CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH2003CT","factsUrl":"https://icboms.com/api/mcp/products/STTH2003CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH2003CT, Fast Recovery Diode Array, 300V Vr, 10A per diode, 35ns trr, 1.25Vf @ 10A, Common Cathode, TO-220-3, Through Hole, Tube.","salesMarkdown":"The STTH2003CT is a 300 V, 10 A per diode fast recovery rectifier array in a common-cathode TO-220-3 package. Its 35 ns reverse recovery time (trr) cuts switching losses in continuous-current-mode PFC stages and flyback snubbers compared to a standard recovery diode. ## 10 A per diode — two diodes, one heatsink Each of the two diodes in the common-cathode pair is rated for 10 A average rectified current. That means a single TO-220 can handle a 20 A centre-tapped rectifier or two independent 10 A rails, sharing one heatsink and one mounting hole. The 1.25 V forward drop at 10 A sets the conduction loss floor — about 12.5 W per diode at full current, so the thermal path to the heatsink matters. With a 300 V DC reverse voltage rating, this diode is sized for 240 VAC input rectification (peak about 340 V) with margin, or for the boost diode in a 400 VDC bus PFC stage where the reverse voltage stays under 300 V during normal operation. It is not rated for 400 VDC bus rectification — that calls for a 600 V class part.","metaTitle":"STTH2003CT Fast Recovery Diode, 300V 10A TO-220-3","metaDescription":"STTH2003CT 35ns fast recovery diode array, 300V Vr, 10A per diode, common cathode, TO-220-3. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","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-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH2003","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Reverse Recovery Time (trr)":"35 ns","Current - Reverse Leakage @ Vr":"20 µA @ 300 V","Voltage - DC Reverse (Vr) (Max)":"300 V","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"1.25 V @ 10 A","Current - Average Rectified (Io) (per Diode)":"10A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8500","priceTiers":[{"qty":1,"price":"$1.85000","currency":"USD"},{"qty":10,"price":"$1.66300","currency":"USD"},{"qty":100,"price":"$1.33690","currency":"USD"},{"qty":500,"price":"$1.09840","currency":"USD"},{"qty":1000,"price":"$1.02655","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c2ffc9ef206802737aa13e3a3435a84e.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH2003CT/alternatives.json"},"ai":{"faq":[{"question":"Is STTH2003CT a fast recovery diode?","answer":"Yes. It is classified as a fast recovery diode with a reverse recovery time of 35 ns, well under the 500 ns threshold that defines the Fast Recovery category."},{"question":"What is the closest pin-compatible alternative to STTH2003CT?","answer":"The STTH2003CT is an active part with no official second source or successor on file."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH2003CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH2003CT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}