DGSK20-025A

Diode Arrays Overview

The DGSK20-025A is a dual common cathode Schottky rectifier manufactured by IXYS Semiconductor. It utilizes Gallium Arsenide (GaAs) technology to achieve high-speed switching capabilities with low forward voltage drop and minimal reverse leakage current. The device is housed in a TO-220AB flange mount package, providing robust thermal dissipation for power applications. Key electrical ratings include an average forward current of 18 A per element and a repetitive peak reverse voltage of 250 V. The junction capacitance is specified at 26 pF, contributing to its efficiency in high-frequency rectification circuits.

Diode Arrays Feature Summary

• Utilizes Gallium Arsenide material for superior high-speed performance compared to silicon alternatives
• Features a common cathode configuration integrating two elements within a single package
• Designed with a flange mount structure to facilitate efficient heat transfer and thermal management

Diode Arrays Applications

• High-frequency DC-DC converters
• Free-wheeling rectification in inductive load circuits
• General purpose rectification requiring fast recovery characteristics

Diode Arrays Procurement Notes

Verify the specific manufacturer source, as Littelfuse has acquired IXYS Semiconductor. Confirm that the component retains original IXYS specifications and markings. Ensure the part number matches the exact suffix for the 250V rating. Check for RoHS compliance status relative to the manufacturing date code. Validate package integrity upon receipt.

Diode Arrays Selection Notes

Select this component when high-speed rectification is required in power supplies operating above standard silicon limits. The GaAs construction offers lower forward voltage than comparable silicon Schottky diodes, reducing conduction losses. The TO-220AB package allows for direct heatsink mounting. Consider the 18 A current rating against the expected load profile and thermal environment.

Diode Arrays Part Context

This component belongs to the DGS/DGSK series of Gallium Arsenide Schottky rectifiers from IXYS. These devices are engineered for applications demanding faster switching speeds and lower noise than traditional silicon rectifiers. The series typically includes variants with different voltage ratings and current capacities, all sharing the same fundamental GaAs technology and package options.

Diode Arrays Replacement Considerations

Direct substitutes may include other GaAs Schottky diodes with matching 18 A and 250 V ratings in a TO-220AB package. Verify pinout compatibility, specifically the common cathode arrangement. Ensure thermal resistance characteristics are equivalent to maintain system reliability.