{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH1210DI","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH1210DI","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH1210DI","factsUrl":"https://icboms.com/api/mcp/products/STTH1210DI","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH1210DI standard fast recovery diode, 1000 V DC reverse, 12 A average rectified, 90 ns reverse recovery time, TO-220AC insulated through-hole package, junction temperature 175 °C max.","salesMarkdown":"## 1 kV, 12 A fast recovery — switching loss ceiling The STTH1210DI is a standard fast recovery diode from STMicroelectronics, rated for 1000 V DC reverse voltage and 12 A average rectified current. Its 90 ns reverse recovery time (trr) sets the switching loss floor in hard-switched topologies — PFC boost stages, flyback clamp circuits, and output rectification in 1 kW-class SMPS. The 2 V maximum forward voltage at 12 A (Vf) and 10 µA reverse leakage at 1000 V (Vr) are the conduction and blocking benchmarks. ## TO-220AC insulated — no mica washer needed The TO-220AC insulated package (Supplier Device Package TO-220AC ins) isolates the tab from the die electrically — the mounting hole and back surface are at the same potential as the cathode, but the package body is rated for full isolation. This eliminates the mica washer and bushing from the BOM, speeds assembly, and improves thermal transfer to the heatsink.","metaTitle":"ST STTH1210DI Fast Recovery Diode, 1 kV 12 A, 90 ns trr","metaDescription":"STMicroelectronics STTH1210DI standard fast recovery diode: 1000 V reverse, 12 A average, 90 ns trr, TO-220AC insulated package. Active, 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-220-2 Insulated, TO-220AC","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH1210","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC ins","Reverse Recovery Time (trr)":"90 ns","Current - Reverse Leakage @ Vr":"10 µA @ 1000 V","Voltage - DC Reverse (Vr) (Max)":"1000 V","Current - Average Rectified (Io)":"12A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"2 V @ 12 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.2100","priceTiers":[{"qty":1,"price":"$3.21000","currency":"USD"},{"qty":10,"price":"$2.88100","currency":"USD"},{"qty":100,"price":"$2.36050","currency":"USD"},{"qty":500,"price":"$2.00942","currency":"USD"},{"qty":1000,"price":"$1.97978","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/9900e8509a795f5661bcb64a48ade96f.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH1210DI/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH1210DI?","answer":"The reverse recovery time (trr) is 90 ns, measured at standard test conditions for a fast recovery diode rated above 200 mA."},{"question":"Is STTH1210DI RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH1210DI","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH1210DI 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}}