{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STTH30R03CG","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STTH30R03CG","canonicalUrl":"https://icboms.com/stmicroelectronics/STTH30R03CG","factsUrl":"https://icboms.com/api/mcp/products/STTH30R03CG","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STTH30R03CG, Fast Recovery Diode, 300 V Vr, 15 A Io per diode, 35 ns trr, 1.9 Vf at 15 A, 20 µA leakage at 300 V, 1 Pair Common Cathode, D2PAK, Tube.","salesMarkdown":"## Fast-recovery dual diode in a D2PAK The STMicroelectronics STTH30R03CG is a 300 V, 15 A average-rated fast-recovery diode pair in a common-cathode configuration, housed in a surface-mount D2PAK (TO-263AB) package. It delivers a 35 ns reverse recovery time, placing it in the class of ultrafast diodes suited for continuous-current rectification in switch-mode power supplies and PFC stages. The 1.9 V forward voltage at 15 A per diode and 20 µA reverse leakage at 300 V define the conduction and blocking losses for the thermal budget. Availability is limited to surplus and broker-channel inventory — sealed reels or factory tubes with consistent date codes, not repackaged returns. The junction temperature rating of 175 °C confirms it was designed for high-reliability power applications, so verify the date-code spread and original packaging when sourcing. The 35 ns reverse recovery time is the key parameter for a fast-recovery diode. It determines how quickly the diode switches off when the voltage reverses, directly affecting switching losses and EMI in a hard-switched converter. A 35 ns trr at 15 A is fast enough for continuous-current-mode (CCM) boost PFC and secondary-side rectification in the 50–150 kHz range. Slower diodes would increase the turn-off loss and require larger snubbers.","metaTitle":"STTH30R03CG Fast Recovery Diode, 300 V 15 A Common Cathode","metaDescription":"STTH30R03CG is an obsolete STMicroelectronics fast-recovery diode pair rated 300 V, 15 A per diode, 35 ns trr in D2PAK.","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":"Surface Mount","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STTH30","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D2PAK","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":"1.9 V @ 15 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.2700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2a18db4148269116f31a1ac6d3e64276.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is STTH30R03CG obsolete?","answer":"Yes, the STTH30R03CG is listed as obsolete. It is no longer manufactured by STMicroelectronics."},{"question":"What is the replacement for STTH30R03CG?","answer":"For a pin-compatible alternative, look for a common-cathode ultrafast diode in D2PAK rated at 300 V and 15 A per diode with a 35 ns or faster trr. Cross-reference searches against the STTH30R03CY (different package variant) or other ST ultrafast series may yield a fit, but verify footprint and thermal pad compatibility before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STTH30R03CG","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STTH30R03CG 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}}