{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS340UY","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS340UY","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS340UY","factsUrl":"https://icboms.com/api/mcp/products/STPS340UY","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS340UY, Schottky diode, 40 V reverse, 3 A forward, 630 mV Vf at 3 A, AEC-Q101, DO-214AA SMB, -40°C to 150°C junction.","salesMarkdown":"## Schottky rectifier for 3 A automotive and industrial rails The STPS340UY is a 40 V, 3 A Schottky rectifier from STMicroelectronics, qualified to AEC-Q101 for automotive use. Forward voltage is 630 mV max at 3 A. Reverse leakage is 20 µA at 40 V. ## AEC-Q101 qualification and junction temperature ceiling AEC-Q101 qualification covers automotive stress tests. ## Package and footprint — SMB thermal management The copper pad area under the cathode tab sets junction-to-ambient thermal resistance. The fast recovery characteristic (≤ 500 ns at > 200 mA) is inherent to the Schottky barrier — no reverse-recovery charge to manage, which simplifies the switching loop in DC-DC converters and freewheeling clamps.","metaTitle":"STPS340UY Schottky Diode 40V 3A AEC-Q101 SMB","metaDescription":"STPS340UY Schottky rectifier, 40V reverse, 3A forward, 630mV Vf at 3A. AEC-Q101 qualified, -40°C to 150°C junction.","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":"Automotive, AEC-Q101","Package":"Tape & Reel (TR); Cut Tape (CT)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-214AA, SMB","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS340","Capacitance @ Vr, F":"-","Supplier Device Package":"SMB","Current - Reverse Leakage @ Vr":"20 µA @ 40 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Current - Average Rectified (Io)":"3A","Operating Temperature - Junction":"-40°C~150°C","Voltage - Forward (Vf) (Max) @ If":"630 mV @ 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","priceTiers":[{"qty":1,"price":"$0.93000","currency":"USD"},{"qty":10,"price":"$0.80200","currency":"USD"},{"qty":100,"price":"$0.55540","currency":"USD"},{"qty":500,"price":"$0.46406","currency":"USD"},{"qty":1000,"price":"$0.39495","currency":"USD"},{"qty":2500,"price":"$0.35175","currency":"USD"},{"qty":5000,"price":"$0.33324","currency":"USD"},{"qty":12500,"price":"$0.30856","currency":"USD"},{"qty":25000,"price":"$0.30550","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/715b7df5ec5f46cc5f19c21671d0d448.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS340UY/alternatives.json"},"ai":{"faq":[{"question":"Is STPS340UY AEC-Q101 qualified?","answer":"Yes, the series is listed as Automotive, AEC-Q101. This qualifies the part for automotive-grade applications including under-hood and chassis-domain ECUs."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS340UY","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS340UY 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}}