{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS2045CR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS2045CR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS2045CR","factsUrl":"https://icboms.com/api/mcp/products/STPS2045CR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS2045CR, Schottky, 1 Pair Common Cathode, 45 V, 10 A per diode, 570 mV Vf @ 10 A, 100 µA @ 45 V reverse leakage, 175°C Tj, I2PAK (TO-262), Through Hole, Tube.","salesMarkdown":"The 570 mV forward voltage at 10 A is typical for a 45 V Schottky at this current density — low enough to keep conduction losses manageable in a 24 V or 36 V output supply, but not as low as a 30 V Schottky would be. The 100 µA reverse leakage at 45 V is a hot-temperature spec; expect it to rise with junction temperature, so budget derating if the heatsink runs above 100°C. ## Common-cathode pair in I2PAK — board-level fit One I2PAK (TO-262) package replaces two discrete TO-220 diodes, saving PCB area and reducing assembly cost. The through-hole I2PAK body has a metal tab that can be bolted to a heatsink or soldered to a copper plane — the tab is the common cathode, so no insulating pad is needed if the heatsink is at output potential. ## 175°C junction — high-temp environments Rated for a maximum junction temperature of 175°C, this rectifier is suited for under-hood automotive, industrial motor drives, and sealed power supplies where ambient temperatures push 85–105°C. The 175°C Tj ceiling gives thermal headroom for continuous 10 A per diode with a modest heatsink, but the reverse leakage at 45 V will double or triple near that limit — factor that into your worst-case dissipation calculation. STMicroelectronics lists the STPS2045CR as obsolete. It is no longer in factory production, so new-stock procurement runs through independent distribution and surplus channels. For a factory-active alternative, see the FAQ below.","metaTitle":"STPS2045CR Schottky Rectifier, 45 V 10 A Common Cathode","metaDescription":"STPS2045CR dual Schottky rectifier: 45 V, 10 A per diode, 570 mV Vf, 175°C Tj. Request quote for current pricing and availability.","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","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-262-3 Long Leads, I²Pak, TO-262AA","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS2045","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"I2PAK","Current - Reverse Leakage @ Vr":"100 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"570 mV @ 10 A","Current - Average Rectified (Io) (per Diode)":"10A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/f137ee87369b19fcadf8971988037d77.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS2045CR/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for STPS2045CR?","answer":"STMicroelectronics does not publish a direct factory replacement for the STPS2045CR. For new designs, consider a current-production 45 V dual Schottky in I2PAK from ST's portfolio, such as the STPS2045CT (TO-220) or a surface-mount equivalent like the STPS2045CG (D²PAK). Verify pinout and thermal performance before substituting. For existing BOMs, we can source the original STPS2045CR through independent channels."},{"question":"Where can I buy STPS2045CR?","answer":"We source the STPS2045CR through independent distribution and surplus inventory. Submit an RFQ for current availability and pricing — we confirm both at quote time. No minimum order quantity restrictions apply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS2045CR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS2045CR 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}}