{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS2L40AF","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS2L40AF","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS2L40AF","factsUrl":"https://icboms.com/api/mcp/products/STPS2L40AF","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS2L40AF, Schottky Diode, 40 V reverse, 2 A forward, 430 mV Vf at 2 A, SMAflat surface-mount package, Fast Recovery ≤ 500 ns, ROHS3 compliant.","salesMarkdown":"## Schottky rectifier for low-voltage rail protection The STPS2L40AF is a 40 V, 2 A Schottky barrier rectifier in the SMAflat surface-mount package. It is designed for low forward voltage drop and fast switching, making it a fit for output rectification and freewheeling diodes in low-voltage power supplies, DC-DC converters, and polarity-protection circuits. ## Forward voltage and conduction loss At the rated 2 A forward current, the maximum forward voltage is 430 mV. The low Vf keeps junction temperature rise manageable in the SMAflat footprint, provided the board copper area is sized for the thermal dissipation. The SMAflat (DO-221AC) package is a surface-mount, leadless variant with flat leads — shorter than a standard SMA, which reduces the parasitic inductance in high-frequency switching nodes. The low profile suits tight-height enclosures, but the exposed pad area is smaller than a standard SMA, so the PCB land pattern should follow the recommended footprint to avoid overheating at sustained 2 A.","metaTitle":"STPS2L40AF Schottky Diode, 40V 2A, SMAflat Package","metaDescription":"STPS2L40AF Schottky rectifier: 40V reverse, 2A forward, 430 mV Vf at 2A. SMAflat surface-mount package. Active production, 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":"Surface Mount","Package / Case":"DO-221AC, SMA Flat Leads","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS2","Capacitance @ Vr, F":"-","Supplier Device Package":"SMAflat","Current - Reverse Leakage @ Vr":"220 µA @ 40 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Current - Average Rectified (Io)":"2A","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"430 mV @ 2 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4900","priceTiers":[{"qty":1,"price":"$0.49000","currency":"USD"},{"qty":10,"price":"$0.42200","currency":"USD"},{"qty":100,"price":"$0.29330","currency":"USD"},{"qty":500,"price":"$0.22902","currency":"USD"},{"qty":1000,"price":"$0.18615","currency":"USD"},{"qty":2000,"price":"$0.16641","currency":"USD"},{"qty":5000,"price":"$0.15794","currency":"USD"},{"qty":10000,"price":"$0.14666","currency":"USD"},{"qty":30000,"price":"$0.14328","currency":"USD"},{"qty":50000,"price":"$0.13963","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/728cce1d2c77ddde9d8e882ab5fc4c9b.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS2L40AF/alternatives.json"},"ai":{"faq":[{"question":"Is STPS2L40AF RoHS compliant and lead-free?","answer":"Yes, it is ROHS3 compliant, meeting the latest RoHS directive without exemptions for lead content."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS2L40AF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS2L40AF 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}}