{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40SM60CT","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40SM60CT","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40SM60CT","factsUrl":"https://icboms.com/api/mcp/products/STPS40SM60CT","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40SM60CT, Schottky diode, 60V Vr, 20A Io per diode, 625mV Vf, Fast Recovery =< 500ns, common cathode, TO-220-3, Tube.","salesMarkdown":"## 60 V, 20 A Schottky — dual common-cathode in TO-220 The STPS40SM60CT is a Schottky rectifier from STMicroelectronics, configured as a pair of common-cathode diodes in a single TO-220-3 through-hole package. The reverse voltage rating is 60 V, and the reverse leakage at that voltage is 90 µA. The fast-recovery classification (≤ 500 ns, > 200 mA) suits it for switching power supplies, freewheeling diodes, and polarity-protection OR-ing stages where Schottky's low Vf and fast turn-off reduce losses. ## 625 mV forward drop — the conduction-loss number that matters At 20 A per diode the forward voltage is 625 mV, which is typical for a 60 V Schottky in this current class. That figure directly sets the I²R conduction loss in a high-current rail — at 20 A each diode dissipates about 12.5 W. The common-cathode layout means the two anodes share the heatsink tab, simplifying thermal management in a center-tapped secondary or dual-output rectifier. ## NRND — plan the last-time-buy or evaluate an alternate For new designs, a pin-compatible alternative in the same STPS40 family should be evaluated — the TO-220-3 footprint and common-cathode configuration are shared across the series.","metaTitle":"ST STPS40SM60CT Schottky Diode, 60V 20A, TO-220-3","metaDescription":"STPS40SM60CT Schottky rectifier, 60V 20A per diode, 625mV Vf, common cathode TO-220-3. Request quote for availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"NRND","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Technology":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-220-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-220","Current - Reverse Leakage @ Vr":"90 µA @ 60 V","Voltage - DC Reverse (Vr) (Max)":"60 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"625 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.0253","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40SM60CT/alternatives.json"},"ai":{"faq":[{"question":"Is STPS40SM60CT obsolete or NRND?","answer":"It is not fully obsolete but is not intended for new projects — existing production can still be supported through independent distribution."},{"question":"What is a suitable replacement for STPS40SM60CT?","answer":"A pin-compatible alternative within the STPS40 series, such as the STPS40L60CT (lower Vf variant) or STPS40H100CT (higher voltage), may fit depending on the voltage and efficiency requirements. Both share the TO-220-3 common-cathode footprint. Verify the forward voltage and reverse voltage ratings against your design."},{"question":"Does STPS40SM60CT have a common cathode configuration?","answer":"Yes, the two diodes share a common cathode — the cathode is the center pin (tab) and the anodes are the outer pins. This is the standard pinout for a dual Schottky in TO-220-3."},{"question":"What is STPS40SM60CT's listed speed?","answer":"It is classified as Fast Recovery =< 500 ns, > 200 mA (Io), which is typical for a Schottky — the actual switching speed is much faster than the recovery classification suggests, well under 100 ns in practice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40SM60CT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40SM60CT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}