DGS4-025A

Single Diodes Overview

The DGS 4-025A is a Gallium Arsenide Schottky rectifier featuring a single diode configuration in a TO-220 package. It supports a repetitive peak reverse voltage of 250 V and an average forward current of 5.4 A at 25°C case temperature. The device exhibits a low junction capacitance of 6.4 pF, ensuring minimal reverse recovery effects. Maximum ratings include a junction temperature range from -55°C to +175°C and a total power dissipation of 8 W at 25°C.

Single Diodes Feature Summary

• Utilizes GaAs technology for very high switching speed and low junction capacity
• Features soft turn-off behavior with low reverse current peaks
• Demonstrates temperature-independent switching characteristics
• Epoxy casing meets UL 94V-0 flammability standards

Single Diodes Applications

• MHz switched mode power supplies (SMPs)
• High frequency converters
• Resonant converters

Single Diodes Procurement Notes

Verify the specific package variant against the datasheet outlines, as the DGS series includes both TO-220 and TO-252 configurations. Confirm that the application environment remains within the specified thermal limits, particularly regarding the 8 W power dissipation rating at 25°C case temperature. Ensure mounting torque adheres to the 0.4...0.6 Nm specification for the TO-220 package to maintain reliable thermal contact.

Single Diodes Selection Notes

Select this component for designs requiring ultra-fast switching and minimal reverse recovery charge. The low junction capacitance makes it suitable for high-frequency operation where standard silicon rectifiers would exhibit excessive losses. Consider the thermal management requirements carefully, as the power dissipation is limited to 8 W at 25°C case temperature, necessitating adequate heatsinking for higher ambient conditions.

Single Diodes Part Context

This part belongs to the IXYS DGS series of Gallium Arsenide Schottky rectifiers. The series includes variants such as the DGS 3-025AS and DGSK 8-025A, which share similar electrical characteristics but differ in packaging and pinout configurations. These devices are designed to replace traditional silicon rectifiers in applications demanding superior high-frequency performance and reduced switching losses.

Single Diodes Replacement Considerations

Direct substitutes within the same family include the DGS 3-025AS and DGSK 8-025A. Verify pin compatibility and package dimensions when swapping between the TO-220 and TO-252 options. Cross-brand replacements should match the 250 V reverse voltage and 5.4 A current ratings while maintaining comparable junction capacitance values.