{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS3L40S","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS3L40S","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS3L40S","factsUrl":"https://icboms.com/api/mcp/products/STPS3L40S","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS3L40S Schottky diode, 40 V reverse voltage, 3 A average rectified current, fast recovery ≤500 ns, 500 mV forward drop at 3 A, DO-214AB SMC package, surface mount.","salesMarkdown":"## 3 A Schottky in an SMC body — the footprint trade-off The STPS3L40S is an STMicroelectronics Schottky rectifier rated 40 V reverse voltage and 3 A average rectified current, in the SMC package. The SMC footprint is larger than the SMA or SMB typically used for 3 A Schottkys, which gives the designer more copper area for heat sinking without needing a separate heatsink. The recovery time is listed as ≤500 ns at >200 mA. For a Schottky diode the recovery is majority-carrier dominated, so the stored charge is minimal — the 500 ns ceiling is conservative. In a 100 kHz boost or flyback converter the reverse recovery loss is negligible, and the diode does not force a dead-time penalty. The base product number STPS3 covers a family of 3 A Schottkys; the L40 variant is the 40 V grade in the SMC package.","metaTitle":"STPS3L40S Schottky Diode 40V 3A SMC Active","metaDescription":"STPS3L40S Schottky diode, 40V reverse, 3A average rectified current. Fast recovery ≤500ns. 500mV forward drop at 3A. SMC package. Active, 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)","Diode Type":"Schottky","Mounting Type":"Surface Mount","Package / Case":"DO-214AB, SMC","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS3","Capacitance @ Vr, F":"-","Supplier Device Package":"SMC","Current - Reverse Leakage @ Vr":"100 µA @ 40 V","Voltage - DC Reverse (Vr) (Max)":"40 V","Current - Average Rectified (Io)":"3A","Operating Temperature - Junction":"150°C(Max)","Voltage - Forward (Vf) (Max) @ If":"500 mV @ 3 A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.8800","priceTiers":[{"qty":1,"price":"$0.88000","currency":"USD"},{"qty":10,"price":"$0.77500","currency":"USD"},{"qty":100,"price":"$0.59390","currency":"USD"},{"qty":500,"price":"$0.46952","currency":"USD"},{"qty":1000,"price":"$0.38395","currency":"USD"},{"qty":2500,"price":"$0.38395","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/acccd42e355b5ecc3a702018132063f2.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS3L40S/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS3L40S","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS3L40S 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}}