{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS2545CTY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS2545CTY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS2545CTY","factsUrl":"https://icboms.com/api/mcp/products/STPS2545CTY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS2545CTY, Q Automotive Schottky diode, 45V Vr, 12.5A average per diode, 570mV Vf, TO-220-3 dual common cathode, -40°C to 175°C junction.","salesMarkdown":"## What this dual Schottky does The STPS2545CTY is a 45 V, 12.5 A per diode Schottky rectifier in a TO-220-3 package with a common-cathode configuration. The 570 mV forward voltage at 12.5 A (per diode) keeps conduction losses manageable in OR-ing, reverse-polarity protection, and output rectification stages. The 45 V reverse voltage (Vr) is the maximum DC blocking voltage; for a 12 V automotive rail this provides adequate margin, but for 24 V systems or higher transients you need a higher Vr part. The 570 mV forward voltage at 12.5 A is a typical figure; at lower currents the Vf drops, improving light-load efficiency. The 125 µA reverse leakage at 45 V is specified at 25°C; leakage doubles roughly every 10°C rise, so at 125°C junction expect several milliamps — factor this into standby power budgets. Through-hole TO-220-3 with a metal tab. The tab is electrically common with the cathode (center pin). For full current rating, the tab must be heatsunk.","metaTitle":"STPS2545CTY Schottky Diode, 45V 12.5A Dual Common Cathode","metaDescription":"STPS2545CTY automotive Schottky rectifier, 45V 12.5A per diode, 570mV Vf, TO-220 dual common cathode.","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":"Q Automotive","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS2545","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"125 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"-40°C~175°C","Voltage - Forward (Vf) (Max) @ If":"570 mV @ 12.5 A","Current - Average Rectified (Io) (per Diode)":"12.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.0600","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/475cac6aace404af2960f2d3f01a5cd2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS2545CTY/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS2545CTY?","answer":"STMicroelectronics has not published an official successor for the STPS2545CTY. For a pin-compatible alternative, look at the STPS2545CT (non-automotive grade) or other 45 V dual-Schottky diodes in TO-220 from ST or competitors. Verify the forward voltage, leakage, and temperature rating against your application before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS2545CTY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS2545CTY 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}}