{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS20L45CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS20L45CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS20L45CT","factsUrl":"https://icboms.com/api/mcp/products/STPS20L45CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS20L45CT, Schottky diode array, 1 pair common cathode, 45 V DC reverse, 10 A average rectified per diode, 550 mV forward drop at 10 A, TO-220-3 through-hole package.","salesMarkdown":"## Schottky pair for 45 V rails — what the ratings mean The STPS20L45CT is a dual Schottky rectifier in a common-cathode configuration, rated for 45 V reverse voltage and 10 A average forward current per diode. The 550 mV forward drop at 10 A sets the conduction loss floor — at full load each diode dissipates roughly 5.5 W, so the TO-220 package's junction-to-case thermal path must be kept below 150 °C junction maximum. STMicroelectronics lists the STPS20L45CT as obsolete. Through-hole TO-220-3 package, supplied in tube. The common-cathode pinout simplifies PCB layout for center-tapped full-wave rectifiers and OR-ing diode arrays — the two anodes are separate, the cathode tab is shared. The metal tab carries the cathode potential and must be electrically isolated or connected to the common cathode rail.","metaTitle":"STPS20L45CT Schottky Diode Array, 45V 10A per Diode, TO-220","metaDescription":"STPS20L45CT Schottky diode array, 45V reverse, 10A average per diode, 550 mV forward drop.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","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-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS20","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"200 µA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"550 mV @ 10 A","Current - Average Rectified (Io) (per Diode)":"10A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.7100","priceTiers":[{"qty":1,"price":"$1.81000","currency":"USD"},{"qty":10,"price":"$1.62300","currency":"USD"},{"qty":100,"price":"$1.30430","currency":"USD"},{"qty":500,"price":"$1.07164","currency":"USD"},{"qty":1000,"price":"$1.00152","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/66bba1c5bdcc0956eaaaf0505df34afc.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS20L45CT/alternatives.json"},"ai":{"faq":[{"question":"Is STPS20L45CT obsolete?","answer":"Yes, STMicroelectronics lists the STPS20L45CT as obsolete. No official successor part number has been published. For existing designs, the part can be sourced through the surplus and broker channel."},{"question":"What is the replacement or equivalent for STPS20L45CT?","answer":"No official replacement or cross-reference is recorded. A form-fit-function substitute would need to match the 45 V reverse rating, 10 A per diode average current, common-cathode configuration, and TO-220-3 package. Verify the forward voltage and thermal characteristics against the original design's margin."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS20L45CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS20L45CT 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}}