MSKD200-16

Overview

The Microsemi MSKD200-16 is a glass-passivated rectifier diode module featuring a common cathode configuration with two elements. It provides a maximum repetitive reverse voltage (VRRM) of 1600 V and supports an average forward current (IFAV) of 200 A at a case temperature of 100°C. The device exhibits a maximum non-repetitive peak surge current of 6800 A for 10 ms. Electrical characteristics include a forward voltage of 1.3 V at 300 A and a leakage current of ≤9 mA at rated voltage. Thermal resistance from junction to case is 0.21 °C/W per diode, with isolation voltage rated at 3000 V rms.

Feature Summary

• Glass passivation for enhanced chip protection
• Heat transfer through aluminum oxide ceramic isolated metal baseplate
• Common cathode dual element configuration

Applications

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

Procurement Notes

Verify the specific part number suffix against official Microsemi documentation to confirm exact electrical ratings and pinout compatibility. Ensure that thermal management designs account for the specified junction-to-case thermal resistance values under actual operating conditions. Confirm compliance with relevant industry standards and environmental regulations prior to integration into final assemblies.

Selection Notes

Select this component for high-voltage rectification applications requiring robust surge handling capabilities. The common cathode arrangement simplifies circuit topology for three-phase or single-phase configurations. Evaluate thermal dissipation requirements based on the specified power dissipation curves and derating factors to ensure reliable operation within the stated temperature range.

Part Context

This module belongs to the MSKD200 series, which includes variants with different voltage ratings such as 800V, 1200V, and 1800V. All series members share similar physical dimensions (Case D2) and thermal characteristics but differ in blocking voltage specifications. The series is designed for general-purpose industrial power conversion environments.

Replacement Considerations

Direct substitutes may include other 200A, 1600V common cathode diode modules from Microsemi or compatible manufacturers offering identical Case D2 footprints. Verify equivalent thermal resistance and insulation voltage ratings when considering cross-brand replacements.

FAQ

What is the maximum non-repetitive peak forward surge current?

The maximum non-repetitive peak forward surge current is 6800 A for a duration of 10 ms at a junction temperature of 45°C.

How is heat transferred in this module?

Heat is transferred through an aluminum oxide ceramic isolated metal baseplate, providing both thermal conductivity and electrical isolation.

What is the isolation voltage rating?

The isolation voltage is rated at 3000 V rms at 50 Hz for one minute between terminals and the heatsink.