MSCD200-12

Overview

The MSCD200-12 is a three-phase glass passivated rectifier diode module manufactured by Microsemi Corporation. It features a maximum repetitive reverse voltage (VRRM) of 1200 V and an average forward current (IFAV) rating of 200 A at a case temperature of 100°C. The device utilizes a D2 package with an aluminum oxide ceramic isolated metal baseplate for heat transfer. Key electrical parameters include a forward voltage of 1.3 V at 300 A and a junction-to-case thermal resistance of 0.21 °C/W per diode.

Feature Summary

• Three-phase rectification configuration
• Glass passivated chip technology
• Aluminum oxide ceramic isolated metal baseplate

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 indicating the 1200V rating, as the base part number covers multiple voltage variants. Confirm the package type matches the required mounting dimensions. Check for any RoHS compliance updates or end-of-life notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a robust three-phase rectification solution is required for high-current industrial applications. Ensure the cooling system can maintain the case temperature within limits to support the 200 A continuous current rating. Verify that the 1200 V blocking voltage aligns with the peak line voltages in the target circuit design.

Part Context

This module belongs to the MSxD200 series, which includes single-phase and three-phase variants with different voltage ratings ranging from 800 V to 1800 V. The D2 package provides a standardized footprint for mounting on heatsinks using M6 screws. The series is designed for heavy-duty power conversion environments requiring high surge current capability.

Replacement Considerations

Direct substitutes are not explicitly listed in the provided documentation. Evaluate other modules within the MSxD200 family or comparable three-phase bridge rectifiers with matching 200 A current and 1200 V voltage ratings. Ensure thermal resistance and mechanical mounting dimensions are compatible with the existing design.

FAQ

What is the maximum non-repetitive forward surge current?

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

How is thermal isolation achieved in this module?

Thermal isolation is achieved through an aluminum oxide ceramic isolated metal baseplate, providing an insulation voltage of 3000 V r.m.s.

What is the operating junction temperature range?

The operating junction temperature range is -40°C to +150°C.