{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1150RL","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1150RL","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1150RL","factsUrl":"https://icboms.com/api/mcp/products/STPS1150RL","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1150RL Schottky diode, 150V DC reverse, 1A average rectified, 820mV forward drop at 1A, 1µA leakage at 150V, 175°C junction max, DO-41 axial package, through-hole mount.","salesMarkdown":"## 150 V, 1 A Schottky in a DO-41 axial — the power-stage clamp diode The STPS1150RL is a 150 V, 1 A Schottky rectifier from STMicroelectronics in the through-hole DO-41 axial package. It is designed for low-voltage power-supply output rectification, freewheeling diodes in DC-DC converters, and reverse-polarity protection where the 150 V blocking voltage gives headroom above a 48 V or 72 V bus. ## Forward drop and leakage — the thermal budget drivers At 1 A forward current the maximum forward voltage is 820 mV — this sets the conduction loss at 820 mW at rated load. The reverse leakage is specified at 1 µA at 150 V, which keeps off-state dissipation negligible at room temperature, but Schottky leakage doubles roughly every 10°C rise, so at 125°C junction the leakage current can dominate the thermal budget if the heatsinking is marginal. ## 175°C junction — high-temp margin for cramped enclosures The maximum junction temperature is 175°C, which gives a wider safety margin than the common 150°C Schottky limit. This matters when the diode is mounted in a sealed power supply or motor-drive enclosure where ambient air temperature inside the box can reach 85°C or more. The 175°C rating means the derating curve starts higher, so the same heatsink can carry more current at elevated ambient. ## DO-41 axial — through-hole rework and board fit The DO-41 (DO-204AL) axial-lead package is a through-hole legacy format. It is easy to hand-solder, inspect, and rework — useful for prototype builds, low-volume production, or repair scenarios where an SMD diode would need hot-air rework. The trade-off is board area: the axial body and formed leads take more PCB real estate than an SMB or SMA SMD package. No official second-source or cross-reference is listed in the STMicroelectronics documentation, but the 150 V, 1 A Schottky in DO-41 is a common specification — any equivalent would need to match the 150 V blocking voltage, 1 A average current, and DO-41 footprint.","metaTitle":"STPS1150RL Schottky Diode, 150V 1A DO-41","metaDescription":"STPS1150RL Schottky rectifier, 150V reverse, 1A average, 820mV forward drop at 1A. DO-41 axial package. Active lifecycle, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"DO-204AL, DO-41, Axial","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS1150","Capacitance @ Vr, F":"-","Supplier Device Package":"DO-41","Current - Reverse Leakage @ Vr":"1 µA @ 150 V","Voltage - DC Reverse (Vr) (Max)":"150 V","Current - Average Rectified (Io)":"1A","Operating Temperature - Junction":"175°C (Max)","Voltage - Forward (Vf) (Max) @ If":"820 mV @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","priceTiers":[{"qty":1,"price":"$0.59000","currency":"USD"},{"qty":10,"price":"$0.50300","currency":"USD"},{"qty":100,"price":"$0.34950","currency":"USD"},{"qty":500,"price":"$0.27290","currency":"USD"},{"qty":1000,"price":"$0.22181","currency":"USD"},{"qty":2000,"price":"$0.19829","currency":"USD"},{"qty":5000,"price":"$0.18820","currency":"USD"},{"qty":10000,"price":"$0.17476","currency":"USD"},{"qty":25000,"price":"$0.17073","currency":"USD"},{"qty":50000,"price":"$0.16638","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6cc6d4f9c06dbfceea56944f1ab2d6bd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1150RL/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to the STPS1150RL?","answer":"No official cross-reference or second-source is listed in the STMicroelectronics documentation for the STPS1150RL. Any alternative would need to match the 150 V reverse voltage, 1 A average current, and DO-41 axial package. Confirm the forward voltage and leakage specs against your circuit's thermal budget before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1150RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1150RL 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}}