{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TYN812TRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TYN812TRG","canonicalUrl":"https://icboms.com/stmicroelectronics/TYN812TRG","factsUrl":"https://icboms.com/api/mcp/products/TYN812TRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TYN812TRG standard-recovery SCR, 800 V off-state voltage, 12 A RMS on-state current, 145 A surge, TO-220-3 package, -40°C to 125°C, RoHS3 compliant.","salesMarkdown":"## 800 V off-state, 12 A RMS — the phase-control workhorse The STMicroelectronics TYN812TRG is a standard-recovery SCR in a TO-220-3 package, rated for 800 V off-state blocking and 12 A RMS on-state current. It is designed for AC phase-control applications such as motor speed controllers, lighting dimmers, and industrial power-switching circuits where the load is resistive or inductive. ## Surge and trigger margins Non-repetitive surge current is 145 A at 60 Hz (140 A at 50 Hz), which gives headroom for capacitor inrush or motor-start transients. Gate trigger current is 5 mA max, so it can be driven directly from a microcontroller I/O pin through a series resistor, simplifying the drive circuit. Hold current is 15 mA max — once triggered, the SCR latches on until the load current drops below this threshold, which is typical for line-frequency phase-control designs. Off-state leakage is 5 µA max, negligible in most power budgets. The TO-220-3 package is through-hole, suited for board-level mounting with a heatsink tab that can be bolted to a chassis or clip-on heat spreader.","metaTitle":"STMicro TYN812TRG SCR, 800 V 12 A TO-220-3, Active","metaDescription":"STMicroelectronics TYN812TRG standard-recovery SCR, 800 V off-state, 12 A RMS, 145 A surge. TO-220-3, -40 to 125°C, RoHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Series":"-","Package":"Tube","SCR Type":"Standard Recovery","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"TYN812","Voltage - Off State":"800 V","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"TO-220","Current - Hold (Ih) (Max)":"15 mA","Current - Off State (Max)":"5 µA","Voltage - On State (Vtm) (Max)":"1.6 V","Current - Gate Trigger (Igt) (Max)":"5 mA","Current - On State (It (AV)) (Max)":"8 A","Voltage - Gate Trigger (Vgt) (Max)":"1.3 V","Current - On State (It (RMS)) (Max)":"12 A","Current - Non Rep. Surge 50, 60Hz (Itsm)":"140A, 145A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7900","priceTiers":[{"qty":1,"price":"$1.79000","currency":"USD"},{"qty":10,"price":"$1.48600","currency":"USD"},{"qty":100,"price":"$1.18290","currency":"USD"},{"qty":500,"price":"$1.00090","currency":"USD"},{"qty":1000,"price":"$0.84925","currency":"USD"},{"qty":2000,"price":"$0.80679","currency":"USD"},{"qty":5000,"price":"$0.77646","currency":"USD"},{"qty":10000,"price":"$0.75075","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/42e41b6773607f1f9a23e52c6635c468.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TYN812TRG/alternatives.json"},"ai":{"faq":[{"question":"Is TYN812TRG RoHS compliant?","answer":"Yes, the TYN812TRG is ROHS3 compliant, meeting the latest EU RoHS directive."},{"question":"Can TYN812TRG be used for AC phase control?","answer":"Yes, the 800 V off-state voltage and 12 A RMS rating make it suitable for 230 VAC and 400 VAC phase-control circuits such as motor speed controllers and lighting dimmers."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TYN812TRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TYN812TRG 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}}