{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1H100AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1H100AY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1H100AY","factsUrl":"https://icboms.com/api/mcp/products/STPS1H100AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1H100AY, Q Automotive series, Schottky diode, 100 V reverse, 1 A forward, 770 mV Vf at 1 A, 4 µA leakage at 100 V, 175°C junction, DO-214AC (SMA), surface mount.","salesMarkdown":"## 100 V / 1 A Schottky — the automotive under-hood rectifier The STPS1H100AY is a 100 V, 1 A Schottky rectifier from STMicroelectronics' Q Automotive series. It is designed for high-temperature automotive environments, with a junction temperature rating of 175°C that exceeds the standard 150°C limit for Schottky diodes. The 770 mV forward voltage at 1 A keeps conduction losses manageable in a DO-214AC (SMA) surface-mount package. ## 175°C junction — the under-hood margin Standard Schottky diodes typically top out at 150°C, so the extra 25°C headroom is what makes this part suitable for engine-bay or transmission-mounted rectification where ambient temperatures push past 125°C. The reverse leakage at 100 V is 4 µA at room temperature — expect that to rise with junction temperature, but the 175°C rating means the part is characterised for the full automotive temperature sweep. ## Q Automotive series — AEC-Q101 compliance The Q Automotive series designation means this diode is qualified to AEC-Q101, the automotive stress-test qualification for discrete semiconductors. That qualification covers extended temperature cycling, high-temperature reverse bias, and humidity testing — the standard for any part going into a safety- or emissions-related automotive ECU.","metaTitle":"STPS1H100AY Schottky Diode, 100 V 1 A, SMA, Q Automotive","metaDescription":"STPS1H100AY Schottky rectifier, 100 V reverse, 1 A forward, 770 mV Vf at 1 A, 175°C Tj, SMA package. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"Q","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"Q Automotive","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS1","Capacitance @ Vr, F":"-","Supplier Device Package":"SMA (DO-214AC)","Current - Reverse Leakage @ Vr":"4 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Current - Average Rectified (Io)":"1A","Operating Temperature - Junction":"-40°C~175°C","Voltage - Forward (Vf) (Max) @ If":"770 mV @ 1 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5100","priceTiers":[{"qty":1,"price":"$0.51000","currency":"USD"},{"qty":10,"price":"$0.43800","currency":"USD"},{"qty":100,"price":"$0.30440","currency":"USD"},{"qty":500,"price":"$0.23762","currency":"USD"},{"qty":1000,"price":"$0.19315","currency":"USD"},{"qty":2000,"price":"$0.17266","currency":"USD"},{"qty":5000,"price":"$0.16388","currency":"USD"},{"qty":10000,"price":"$0.15218","currency":"USD"},{"qty":25000,"price":"$0.14866","currency":"USD"},{"qty":50000,"price":"$0.14488","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/4019e6fdb0d6d727055c78f8cacc6d75.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1H100AY/alternatives.json"},"ai":{"faq":[{"question":"Is STPS1H100AY automotive qualified?","answer":"Yes — the Q Automotive series designation indicates AEC-Q101 qualification, making it suitable for automotive under-hood environments."},{"question":"What is the reverse leakage current of STPS1H100AY?","answer":"The reverse leakage current is 4 µA at 100 V reverse voltage."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1H100AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1H100AY 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}}