{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS3045CW","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS3045CW","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS3045CW","factsUrl":"https://icboms.com/api/mcp/products/STPS3045CW","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS3045CW Schottky rectifier, 45 V reverse voltage, 15 A average rectified current per diode, 570 mV forward voltage at 15 A, 1 pair common cathode, TO-247-3 through-hole package.","salesMarkdown":"## Common-cathode Schottky pair for 45 V rails The 570 mV forward voltage at 15 A sets the conduction loss that drives the heatsink selection. The TO-247-3 through-hole package handles the thermal mass for continuous operation up to 200°C junction temperature. ## Conduction loss and heatsink sizing At 15 A forward current the typical Vf is 570 mV, which means each diode dissipates about 8.6 W in conduction alone. For a 30 A total load (15 A per leg) the pair dissipates ~17 W — the TO-247 tab needs a heatsink with a thermal resistance low enough to keep the junction below 200°C at the expected ambient. The 200 µA reverse leakage at 45 V is a secondary contributor to self-heating, but it rises with temperature and should be factored into the thermal budget at high ambients. ## Package and mounting note The common-cathode configuration means the two cathodes are internally tied to the tab — the tab is electrically live at the cathode potential, so an insulating pad or thermal interface material is required if the heatsink is grounded.","metaTitle":"STPS3045CW Schottky Diode, 45V 15A Common Cathode TO-247-3","metaDescription":"STPS3045CW Schottky rectifier, 45V Vr, 15A per diode, 570mV Vf at 15A, common cathode pair in TO-247-3. Active production.","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":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-247-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS3045","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-247-3","Current - Reverse Leakage @ Vr":"200 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"200°C (Max)","Voltage - Forward (Vf) (Max) @ If":"570 mV @ 15 A","Current - Average Rectified (Io) (per Diode)":"15A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.6500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/2c9bd8aea83ec028bac6e660e8b4f4ea.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS3045CW/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STPS3045CW in this component family?","answer":"The STPS3045CW is part of the STPS3045 base number family. The STPS3045C variant shares the same 45 V / 15 A per diode ratings but differs in package — the STPS3045C typically comes in a TO-220AB package. The TO-247-3 package of the STPS3045CW offers a larger tab area for better thermal dissipation than the TO-220AB."},{"question":"What is STPS3045CW's listed speed on this component line?","answer":"The STPS3045CW is listed as a Fast Recovery Schottky diode with a recovery time of ≤ 500 ns at forward current > 200 mA. This is typical for a Schottky barrier device — the fast recovery characteristic is inherent to the Schottky junction and suits high-frequency rectification and freewheeling diode applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS3045CW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS3045CW 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}}