{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH8L06DIRG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH8L06DIRG","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH8L06DIRG","factsUrl":"https://icboms.com/api/mcp/products/STTH8L06DIRG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH8L06DIRG, Fast Recovery Diode, Standard, 600 V, 8 A, 105 ns trr, 1.3 Vf @ 8 A, Through Hole, TO-220-2 Insulated, TO-220AC, Tube","salesMarkdown":"## 600 V / 8 A fast recovery in a TO-220AC insulated tab The STTH8L06DIRG is a standard fast-recovery diode from STMicroelectronics, rated for 600 V reverse voltage and 8 A average forward current. Its 105 ns reverse recovery time places it in the fast-recovery class — suitable for continuous-conduction-mode PFC boost stages, output rectification in 400 V bus SMPS, and motor-drive snubber circuits where the recovery charge must be low enough to keep the switching transistor within its SOA. The 105 ns reverse recovery time is the key parametric that differentiates this part from a standard 50/60 Hz rectifier. At a switching frequency of 50–100 kHz, the stored charge in the diode must be swept out fast enough to avoid cross-conduction during the dead-time of the half-bridge. A 105 ns trr at 8 A forward current means the recovery peak is sharp enough that a simple RC snubber across the diode (typically 10–47 Ω in series with 470 pF–2.2 nF) can damp the ringing without excessive dissipation. ## Obsolete — sourcing through the independent channel STMicroelectronics lists the STTH8L06DIRG as obsolete. ## Thermal and mounting — the insulated tab advantage The TO-220AC insulated package (ST's 'DIRG' suffix) has a fully isolated tab, so the heatsink can be grounded or shared across multiple devices without an insulating pad. The junction is rated for 175°C maximum, which gives headroom in a 85°C ambient industrial enclosure if the heatsink is sized for a junction-to-ambient thermal resistance below about 12°C/W at 8 A average. The forward voltage drop is 1.3 V at 8 A, so conduction loss at rated current is about 10.4 W — the heatsink must keep the junction below 175°C at that dissipation.","metaTitle":"STTH8L06DIRG Fast Recovery Diode, 600V 8A, 105ns trr","metaDescription":"STTH8L06DIRG is an obsolete STMicroelectronics 600V 8A fast recovery diode with 105ns trr in TO-220AC insulated package.","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","Diode Type":"Standard","Mounting Type":"Through Hole","Package / Case":"TO-220-2 Insulated, TO-220AC","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH8L06","Capacitance @ Vr, F":"-","Supplier Device Package":"TO-220AC ins","Reverse Recovery Time (trr)":"105 ns","Current - Reverse Leakage @ Vr":"8 µA @ 600 V","Voltage - DC Reverse (Vr) (Max)":"600 V","Current - Average Rectified (Io)":"8A","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"1.3 V @ 8 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3d6afcec464063b77469c315ef691025.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STTH8L06DIRG/alternatives.json"},"ai":{"faq":[{"question":"What is the reverse recovery time of STTH8L06DIRG?","answer":"The reverse recovery time (trr) is 105 ns, measured at the rated forward current and recovery conditions typical for fast-recovery diodes in this voltage class."},{"question":"Does STTH8L06DIRG have a RoHS compliant version?","answer":"The 'DIRG' suffix on the STTH8L06DIRG indicates a RoHS-compliant, halogen-free version of the STTH8L06 in the TO-220AC insulated package. The base product number is STTH8L06."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH8L06DIRG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH8L06DIRG 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}}