SD940-T

Single Diodes Overview

The SD940-T is a high current Schottky barrier rectifier manufactured by Diodes Incorporated. It features a DO-201AD case and offers a peak repetitive reverse voltage of 40 V with a maximum average forward current of 9.0 A at a case temperature of 120°C. The device exhibits a low forward voltage drop, typically ranging from 0.42 V to 0.57 V depending on the junction temperature and forward current conditions. It supports a maximum peak one-cycle surge current of 340 A and operates within a temperature range of -65°C to +150°C.

Single Diodes Feature Summary

• High current capability combined with low forward voltage drop for improved efficiency
• Guard ring structure designed to provide transient protection
• High surge capacity suitable for handling temporary overcurrent events

Single Diodes Applications

• General purpose rectification in power supply circuits
• Freewheeling diode applications in inductive load switching
• DC-DC converter output rectification

Single Diodes Procurement Notes

Verify the specific ordering suffix to confirm packaging configuration. The standard tape and reel variant contains 1200 units per 13-inch reel. Confirm RoHS compliance status and lead finish specifications against current manufacturing revisions before finalizing procurement orders.

Single Diodes Selection Notes

Select this component when a robust Schottky rectifier with high surge tolerance is required. Ensure the operating case temperature does not exceed 120°C for the rated 9.0 A current. Consider derating requirements if utilizing capacitance loads or higher ambient temperatures.

Single Diodes Part Context

This part belongs to the SD930/SD940/SD945 series of high current Schottky barrier rectifiers. All variants share identical mechanical dimensions and thermal characteristics, differing only in their maximum repetitive reverse voltage ratings. The series utilizes a molded plastic DO-201AD case with tin-plated leads.

Single Diodes Replacement Considerations

Direct substitutes include the SD930-T and SD945-T from the same manufacturer family. Verify that alternative components match the 40 V reverse voltage rating and 9.0 A forward current capability.