{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS40H100CW","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS40H100CW","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS40H100CW","factsUrl":"https://icboms.com/api/mcp/products/STPS40H100CW","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS40H100CW, Schottky Diode, 1 Pair Common Cathode, 100 V, 20 A per diode, 730 mV Vf at 20 A, TO-247-3 Through Hole, Fast Recovery ≤ 500 ns, 175°C Junction.","salesMarkdown":"## Dual Schottky for high-current rectification — TO-247-3 common-cathode pair The STPS40H100CW from STMicroelectronics is a dual Schottky rectifier with a common-cathode configuration, packing two 20 A diodes in a single TO-247-3 through-hole package. ## 100 V blocking with 10 µA leakage — fits 48 V and 60 V rails comfortably Rated for 100 V DC reverse maximum, the STPS40H100CW gives a 40 V margin on a 60 V rail and over 50 V on a 48 V telecom bus. Reverse leakage is specified at 10 µA at 100 V — a clean number for a 20 A Schottky, meaning standby losses stay low in OR-ing and reverse-polarity protection circuits. In a center-tap full-wave rectifier, the common-cathode pair lets you tie both anodes to the transformer secondary and pull the cathode common to the output rail, cutting the diode count and board area in half. ## Active lifecycle — no near-term obsolescence risk on this BOM line For a production BOM, this removes the sourcing uncertainty that comes with NRND or obsolete power diodes — no scramble for a drop-in replacement mid-program. ## Through-hole TO-247-3 — mechanical and thermal notes The TO-247-3 package is a through-hole, three-lead format with a large metal tab for heatsink attachment. The common-cathode output ties to the tab electrically, so the heatsink carries the output potential — insulating pad or thermal compound choice matters if the heatsink is chassis-grounded. The 175 °C junction rating allows high-temperature operation, but the tab-to-ambient thermal resistance will demand a finned heatsink or forced air for continuous 20 A per diode. MSL is typically Level 1 for these molded power packages; no bake needed before reflow if the bag seal is intact.","metaTitle":"STPS40H100CW Schottky Diode, 100V 40A, TO-247-3","metaDescription":"STPS40H100CW dual common-cathode Schottky rectifier: 100 V, 20 A per diode, 730 mV Vf at 20 A, 175°C Tj max. Active lifecycle. TO-247-3 through-hole.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Mfr":"STMicroelectronics","Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Package":"Tube","Diode Type":"Schottky","Mounting Type":"Through Hole","Package / Case":"TO-247-3","Product Status":"Active","lifecycle_stage":"eol_hot","Base Product Number":"STPS40","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"TO-247-3","Current - Reverse Leakage @ Vr":"10 µA @ 100 V","Voltage - DC Reverse (Vr) (Max)":"100 V","Operating Temperature - Junction":"175°C(Max)","Voltage - Forward (Vf) (Max) @ If":"730 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.0300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/e5c7a7b12e7a6ff7cea82e0c13797792.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS40H100CW/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STPS40H100CW?","answer":"The STPS40H100CW is the base product number for this dual common-cathode Schottky in TO-247-3. If a second source is required, compare the VF and thermal specs of other 100 V, 40 A dual Schottky diodes in the same package — Vishay, ON Semiconductor, and Diodes Inc offer similar functional equivalents, but pinout and tab potential should be verified before substitution."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS40H100CW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS40H100CW 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}}