{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"STPS41L45CG-TR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"STPS41L45CG-TR","canonicalUrl":"https://icboms.com/stmicroelectronics/STPS41L45CG-TR","factsUrl":"https://icboms.com/api/mcp/products/STPS41L45CG-TR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics STPS41L45CG-TR Schottky rectifier, 45 V reverse voltage, 20 A average rectified current per diode, 530 mV forward voltage at 20 A, dual common-cathode configuration, D2PAK surface-mount package.","salesMarkdown":"## What this Schottky pair delivers on the rail The STPS41L45CG-TR from STMicroelectronics is a dual Schottky rectifier in a common-cathode configuration, housed in a D2PAK (TO-263) surface-mount package. Each diode handles 20 A of average rectified current with a forward voltage drop of 530 mV at that current, keeping conduction losses manageable in power supply output stages and OR-ing circuits. At 20 A per diode, the 530 mV forward drop produces about 10.6 W of dissipation per diode. In a common-cathode pair running 40 A total, that is over 21 W in the package. Without adequate thermal management, the part will hit thermal shutdown or exceed the junction rating under sustained full load. ## D2PAK rework and mounting notes The D2PAK (TO-263-3) is a surface-mount package with a large exposed tab on the bottom. It reflows well with a standard lead-free profile, but the tab's thermal mass means the hot-air station needs a few extra seconds to get the solder fully liquid. The package has a clear orientation notch. For BOM planning, this is a low-risk line item — no last-time-buy pressure, no forced redesign to a substitute.","metaTitle":"STPS41L45CG-TR Schottky Rectifier","metaDescription":"STPS41L45CG-TR Schottky diode, 45V Vr, 20A per diode, 530mV Vf at 20A. Dual common-cathode in D2PAK. Active product, available to order. Request quote.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Speed":"Fast Recovery =< 500ns, > 200mA (Io)","Series":"-","Packaging":"Tape & Reel (TR) Cut Tape (CT)","Technology":"Schottky","Part Status":"Active","Manufacturer":"STMicroelectronics","Mounting Type":"Surface Mount","Package / Case":"TO-263-3, D2PAK (2 Leads + Tab), TO-263AB","lifecycle_stage":"eol_hot","Base Product Number":"STPS41","Diode Configuration":"1 Pair Common Cathode","Supplier Device Package":"D2PAK","Current - Reverse Leakage @ Vr":"1.2 mA @ 45 V","Voltage - DC Reverse (Vr) (Max)":"45 V","Operating Temperature - Junction":"150°C (Max)","Voltage - Forward (Vf) (Max) @ If":"530 mV @ 20 A","Current - Average Rectified (Io) (per Diode)":"20A"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.3000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/0c235df68083a034c5fba120a39889cd.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/STPS41L45CG-TR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to STPS41L45CG-TR?","answer":"The STPS41L45CG (non-tape-and-reel variant) is the same die in the same D2PAK package — the -TR suffix indicates Tape & Reel packaging only. For a functional equivalent from another manufacturer, look for a 45 V, 20 A dual common-cathode Schottky in D2PAK, but verify the forward voltage and reverse leakage match your thermal and efficiency targets."},{"question":"Does STPS41L45CG-TR require a heatsink?","answer":"At 20 A per diode, the 530 mV forward drop generates about 10.6 W per diode. Whether a heatsink is needed depends on the PCB copper area, ambient temperature, and allowable junction temperature rise to the 150°C maximum. In many designs, the D2PAK's tab soldered to a large copper pour on the PCB is sufficient; sustained full load may call for an additional heatsink attached to the tab."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/STPS41L45CG-TR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/STPS41L45CG-TR 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}}