MSC2X31SDA170J

Overview

The MSC2X31SDA170J is a dual silicon carbide Schottky barrier diode module manufactured by Microchip Technology. It features two parallel-connected diodes within an isolated SOT-227 package, designed for high-voltage power applications. The device supports a maximum DC reverse voltage of 1700 V and a maximum DC forward current of 30 A at a case temperature of 100 °C. Key electrical characteristics include a typical forward voltage of 1.5 V at 30 A and 25 °C, with a maximum junction-to-case thermal resistance of 0.65 °C/W. The module operates across a wide temperature range from -55 °C to +175 °C.

Feature Summary

• Dual parallel configuration providing high current handling capability in a single isolated package
• Silicon carbide construction enabling zero reverse recovery charge for high-frequency efficiency
• Isolated mounting base rated for 2500 V RMS isolation voltage between terminals and heatsink
• Avalanche-energy rated design allowing robust operation under transient overvoltage conditions

Applications

• Power factor correction circuits
• Anti-parallel diodes in switch-mode power supplies and inverters
• Freewheeling diodes in motor controllers and converters
• Snubber and clamp diodes in high-voltage switching systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm pinout configuration. The 'J' suffix denotes the parallel configuration variant; ensure this matches the circuit topology requirements. Confirm RoHS compliance status and packaging details directly with authorized distributors or the manufacturer before procurement. Cross-reference the datasheet revision date to ensure access to the latest electrical specifications and mechanical drawings.

Selection Notes

Select this component when designing high-voltage systems requiring low switching losses and high thermal efficiency. The parallel internal structure suits applications needing higher current density than single-diode modules offer. Ensure the cooling solution can maintain the case temperature below 100 °C to sustain the full 30 A rating. Verify that the system voltage does not exceed the 1700 V reverse blocking capability under all operating transients.

Part Context

This device belongs to the MSC2X31/30SDA170J product line of dual SiC Schottky barrier diodes. It is part of Microsemi's (now Microchip) portfolio aimed at replacing silicon solutions in high-performance power electronics. The series includes variants with different internal configurations, such as anti-parallel arrangements, to address diverse circuit topologies in industrial and automotive power conversion.

Replacement Considerations

Direct functional substitutes within the same package and specification range are limited. Designers may consider other 1700V SiC modules from various manufacturers but must verify pin compatibility, thermal resistance, and isolation ratings. No specific alternative part numbers are officially confirmed as direct replacements in the provided documentation.