MSCD200-08

Overview

The MSCD200-08 is a three-phase glass passivated rectifier diode module manufactured by Microsemi Corporation. It features an 800V repetitive peak reverse voltage (VRRM) and supports a maximum average forward current of 200A at a case temperature of 100°C. The device withstands a non-repetitive surge current of 6800A for 10ms. Electrical characteristics include a forward voltage of 1.3V at 300A and a maximum reverse leakage current of 9mA. Thermal resistance from junction to case is 0.21°C/W per diode, with a junction temperature range of -40°C to 150°C.

Feature Summary

• Utilizes glass passivated chip technology for enhanced reliability
• Provides heat transfer through an aluminum oxide ceramic isolated metal baseplate
• Offers high blocking voltage ratings ranging from 800V to 1800V across the series

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 suffix code to confirm the exact voltage rating, as the base part number covers multiple variants. Confirm that the required thermal interface material matches the D2 package outline dimensions. Ensure the mounting torque specifications for M6 terminals and heatsink are strictly adhered to during installation to maintain electrical isolation and thermal performance integrity.

Selection Notes

Select this module when a robust three-phase rectification solution is required for high-power industrial drives. The 800V rating suits standard medium-voltage AC lines. Consider the 0.21°C/W junction-to-case thermal resistance for heatsink design calculations. Verify that the system can accommodate the 160g module weight and the specific D2 package footprint constraints within the enclosure layout.

Part Context

This component belongs to the MSKD200, MSAD200, and MSCD200 family of glass passivated rectifier diode modules. These devices are designed for high-current applications requiring reliable operation in harsh environments. The family shares common mechanical and thermal characteristics while differing primarily in their voltage blocking capabilities, allowing for flexible selection based on circuit requirements.

Replacement Considerations

Direct substitutes within the same family include MSCD200-12, MSCD200-16, and MSCD200-18, which offer higher voltage ratings but share identical current and thermal specifications. Ensure any replacement maintains the D2 package form factor and mounting hole pattern for compatibility with existing hardware.

FAQ

What is the maximum non-repetitive surge current capability?

The MSCD200-08 can withstand a non-repetitive surge current of 6800A for a duration of 10ms at a junction temperature of 45°C.

How is electrical isolation achieved in this module?

Electrical isolation is provided through an aluminum oxide ceramic insulated metal baseplate, supporting an isolation voltage of 3000Vrms for one minute at 50Hz.

What is the thermal resistance from junction to case?

The thermal resistance from junction to case (Rth(j-c)) is 0.21°C/W per diode within the module.