{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1545CGY-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1545CGY-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1545CGY-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS1545CGY-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1545CGY-TR, Automotive Schottky Rectifier, 45 V Vr, 7.5 A per diode, Common Cathode, Fast Recovery ≤500 ns, AEC-Q101, D²PAK, Surface Mount.","salesMarkdown":"## Automotive Schottky in a D²PAK — what the ratings tell you It pairs two Schottky diodes in a common-cathode configuration inside a single D²PAK (TO-263) surface-mount package. This combination of ratings — 45 V blocking, 7.5 A per leg, 175°C junction — targets 12 V and 24 V automotive power-train and body-electronics applications where OR-ing, reverse-polarity protection, or center-tapped secondary rectification is needed. ## Common-cathode dual — board-area and thermal advantage The 1-pair common-cathode arrangement lets you handle two independent rectification paths in one package, cutting PCB area and placement cost versus two discrete Schottkys. In a center-tapped full-wave rectifier the common cathode becomes the positive output rail; in an OR-ing configuration each anode connects to a separate supply, with the shared cathode feeding the load. The 45 V maximum reverse voltage covers 12 V and 24 V automotive rails with healthy margin — a 24 V nominal bus sees transients up to 36 V, which this part absorbs. It does not suit a 48 V nominal system (typical telecom or mild-hybrid traction battery), where the steady-state bus sits above 50 V. The reverse leakage is specified at 100 µA at 45 V, typical for a Schottky of this voltage class; expect leakage to double or triple near the 175°C junction limit, so factor that into the quiescent budget if the diode is always reverse-biased. ## Active lifecycle — no LTB concern for new designs STMicroelectronics lists the STPS1545CGY-TR as Active. The base product number STPS1545 has been in production for years across multiple package variants, so the die and assembly line are mature. For a BOM that needs automotive-grade Schottkys, this part carries no imminent obsolescence risk.","metaTitle":"STPS1545CGY-TR Schottky Rectifier, 45V 7.5A, AEC-Q101, D²PAK","metaDescription":"STPS1545CGY-TR automotive Schottky rectifier: 45V Vr, 7.5A per diode, common cathode, 175°C junction, AEC-Q101.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Grade":"Automotive","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Surface Mount","Qualification":"AEC-Q101","Package / Case":"TO-263-3, D²Pak (2 Leads + Tab), TO-263AB","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS1545","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D²PAK","Current - Reverse Leakage @ Vr":"100 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"-40°C ~ 175°C","Voltage - Forward (Vf) (Max) @ If":"570 mV @ 7.5 A","Current - Average Rectified (Io) (per Diode)":"7.5A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9581","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/3f65bc44809b727973460a5079aacb03.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1545CGY-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the STPS1545CGY-TR used for?","answer":"This Schottky rectifier is designed for automotive power applications: OR-ing diodes in redundant supply rails, reverse-polarity protection, freewheeling diodes in solenoid and relay drivers, and secondary-side rectification in DC-DC converters up to 45 V. The 175°C junction rating suits under-hood environments and high-ambient industrial enclosures."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1545CGY-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1545CGY-TR 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}}