{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40M120CTN","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40M120CTN","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40M120CTN","factsUrl":"https://icboms.com/api/mcp/products/STPS40M120CTN","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40M120CTN, Schottky diode, 120 V DC reverse, 20 A average rectified per diode, common-cathode pair, fast recovery ≤ 500 ns, TO-220-3 through-hole, tube.","salesMarkdown":"## 120 V, 20 A common-cathode Schottky — what you get The junction operates up to 150 °C maximum. Forward voltage drop is 790 mV maximum at 20 A per diode, and reverse leakage is 370 µA at the rated 120 V. The fast-recovery characteristic (≤ 500 ns, > 200 mA) suits it for switching power supplies and output rectification stages where recovery time matters for efficiency and thermal budget. STMicroelectronics lists the STPS40M120CTN as obsolete.","metaTitle":"STPS40M120CTN Schottky Diode, 120V 20A TO-220, Obsolete","metaDescription":"STPS40M120CTN 120V 20A fast-recovery Schottky diode in TO-220-3 common-cathode pair.","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-220-3","Product Status":"Obsolete","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"370 µA @ 120 V","Voltage - DC Reverse (Vr) (Max)":"120 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"790 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8b664572142b547b215f74d70b73a155.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40M120CTN/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy STPS40M120CTN?","answer":"Submit an RFQ for current availability and pricing — no stock or price figures are published here."},{"question":"Is STPS40M120CTN obsolete?","answer":"Yes, STMicroelectronics has marked the STPS40M120CTN as obsolete. No official replacement is listed; procurement should plan for surplus or alternate-sourcing."},{"question":"What is the replacement for STPS40M120CTN?","answer":"No direct replacement is cited in the official record. A functional substitute would need to match the 120 V reverse voltage, 20 A per-diode current, common-cathode configuration, and fast-recovery Schottky technology in a TO-220 package. Evaluate alternatives from the same or other manufacturers against your switching frequency and thermal requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40M120CTN","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40M120CTN 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}}