{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS1150AY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS1150AY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS1150AY","factsUrl":"https://icboms.com/api/mcp/products/STPS1150AY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS1150AY, Q-Series Automotive Schottky Diode, 150 V, 1 A, Fast Recovery ≤ 500 ns, 820 mV Vf at 1 A, 1 µA leakage at 150 V, 175°C Tj, DO-214AC (SMA), Surface Mount.","salesMarkdown":"## Automotive-grade Schottky for 150 V, 1 A rectification The STPS1150AY is an automotive-grade Schottky rectifier from STMicroelectronics' Q-Series, rated for 150 V reverse voltage and 1 A average forward current. It is housed in a DO-214AC (SMA) surface-mount package and qualified for use in automotive environments — the AEC-Q grade is the primary differentiator from the standard STPS1150. The 150 V blocking voltage gives headroom for 48 V board nets and 12 V systems with load-dump transients. The 1 A average rating covers typical low-power rectification, freewheeling, and polarity protection roles. Forward voltage is 820 mV maximum at 1 A — this sets the conduction loss at 0.82 W, which the SMA package can dissipate with adequate copper area on the PCB. Reverse leakage is specified at 1 µA at 150 V, a low figure that suits battery-backed circuits and high-impedance sense lines. The junction temperature rating of 175°C maximum allows the part to operate in under-hood or other high-ambient locations without derating the current prematurely.","metaTitle":"STPS1150AY Schottky Diode, 150 V, 1 A, Automotive Grade, SMA","metaDescription":"STPS1150AY Schottky diode, 150 V reverse voltage, 1 A forward current, automotive grade, 175°C junction temp, SMA package.","metaKeywords":null},"attributes":{"series":"Q","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Grade":"Automotive","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"Q","Package":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-214AC, SMA","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS1150","Capacitance @ Vr, F":"-","Supplier Device Package":"SMA","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":"$0.7100","priceTiers":[{"qty":1,"price":"$0.71000","currency":"USD"},{"qty":10,"price":"$0.61700","currency":"USD"},{"qty":100,"price":"$0.42750","currency":"USD"},{"qty":500,"price":"$0.35716","currency":"USD"},{"qty":1000,"price":"$0.30397","currency":"USD"},{"qty":2000,"price":"$0.27073","currency":"USD"},{"qty":5000,"price":"$0.25647","currency":"USD"},{"qty":10000,"price":"$0.23748","currency":"USD"},{"qty":25000,"price":"$0.23512","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/94b1ca754ebdd9fd6902ae53db8e531a.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS1150AY/alternatives.json"},"ai":{"faq":[{"question":"Is the STPS1150AY automotive qualified?","answer":"Yes, the STPS1150AY carries an Automotive grade designation, making it suitable for use in automotive applications where AEC-Q101 or similar qualification is required."},{"question":"What is the difference between the STPS1150AY and the standard STPS1150?","answer":"The primary difference is the Automotive grade on the STPS1150AY versus the commercial/industrial grade on the standard STPS1150. The electrical ratings — 150 V, 1 A, 820 mV Vf, 1 µA leakage — are otherwise identical between the two variants."},{"question":"Is the STPS1150AY RoHS compliant?","answer":"Yes, the STPS1150AY is listed as ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS1150AY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS1150AY 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}}