MSKD200-18

Overview

The MSKD200-18 is a glass passivated rectifier diode module manufactured by Microsemi Corporation. It features a one-pair common cathode configuration housed in a D2 base-mount package. The device supports a maximum repetitive reverse voltage (VRRM) of 1800 V and an average forward current (IFAV) of 200 A at a case temperature of 100°C. Key electrical parameters include a forward voltage of 1.3 V at 300 A and a maximum reverse leakage current of 9 mA at 1800 V. Thermal resistance from junction to case is 0.21 °C/W per diode, with a non-repetitive surge current rating of 6800 A.

Feature Summary

• Utilizes an aluminum oxide ceramic isolated metal baseplate for efficient heat transfer
• Features glass passivated chips for enhanced reliability
• Provides high insulation voltage capability between terminals and heatsink

Applications

• Non-controllable rectifiers for AC/AC converters
• Line rectifiers for transistorized AC motor controllers
• Field supply for DC motors

Procurement Notes

Verify component authenticity through authorized channels as the part status is End-of-Life. Confirm that the specific ordering suffix matches the required voltage and current ratings. Ensure thermal interface materials are compatible with the D2 package outline. Check for RoHS compliance status if required by the target application environment. Validate datasheet revision against the manufacturing date code.

Selection Notes

Select this module when high blocking voltage and robust surge handling are required in industrial power applications. The D2 package facilitates direct mounting to heatsinks for effective thermal management. Consider the 0.21 °C/W junction-to-case thermal resistance for heat sink sizing calculations. Ensure the operating junction temperature remains within the specified -40°C to 150°C range during continuous operation.

Part Context

This component belongs to the MSKD200 series of glass passivated rectifier diode modules. The series includes variants with different voltage ratings such as 800V, 1200V, and 1600V. All models share the same 200A current rating and D2 package form factor. The series is designed for general purpose high-power rectification in demanding environments.

Replacement Considerations

Public confirmed substitute part numbers: None identified.