{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH9012TV1","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH9012TV1","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH9012TV1","factsUrl":"https://icboms.com/api/mcp/products/STTH9012TV1","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH9012TV1 fast recovery diode, 1200 V, 45 A per diode, 125 ns trr, 2 independent diodes, ISOTOP chassis-mount package, Tube.","salesMarkdown":"The STTH9012TV1 is a fast recovery diode from STMicroelectronics, built with standard silicon technology and housed in the ISOTOP package for chassis-mount, high-power applications. The 1200 V blocking voltage gives headroom for 400 VAC or 600 VDC bus rails with derating for transients. The 45 A per diode average current, with a forward voltage drop of 2.1 V at 45 A, means each diode dissipates roughly 95 W at full rated current — the ISOTOP package is designed to bolt to a heatsink, so thermal management is mandatory. The 125 ns reverse recovery time keeps switching losses manageable in the 20–100 kHz range, which is where this part earns its keep over a standard recovery diode. ## Package and mounting — ISOTOP chassis mount The ISOTOP package (also called ISOTOP® by ST) is a high-power, electrically isolated baseplate module designed for through-hole bolting to a heatsink. The two independent diodes share the same baseplate but are electrically isolated from it, so you can mount one module per phase without extra isolation hardware. The chassis-mount form factor means the PCB carries only the gate/signal connections — the main current path goes through screw terminals or busbars, not board traces. The ISOTOP package is a mature, long-running form factor, so supply continuity is good through ST's distribution network.","metaTitle":"STTH9012TV1 Fast Recovery Diode, 1200 V, 45 A, ISOTOP","metaDescription":"STTH9012TV1 fast recovery diode from STMicroelectronics: 1200 V, 45 A per diode, 125 ns trr, ISOTOP chassis-mount package. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Technology":"Standard","Mounting Type":"Chassis Mount","Package / Case":"ISOTOP","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STTH9012","Diode Configuration":"2 Independent","Supplier Device Package":"ISOTOP®","Reverse Recovery Time (trr)":"125 ns","Current - Reverse Leakage @ Vr":"30 µA @ 1200 V","Voltage - DC Reverse (Vr) (Max)":"1200 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"2.1 V @ 45 A","Current - Average Rectified (Io) (per Diode)":"45A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$27.0600","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2f28978731b75c3e401ee46f1785a42d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the reverse recovery time of the STTH9012TV1?","answer":"The reverse recovery time (trr) is 125 ns, which qualifies it as a fast recovery diode suitable for switching frequencies up to about 100 kHz."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH9012TV1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH9012TV1 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}}