C157D

Scrs Overview

The C157D is a standard recovery silicon controlled rectifier (SCR) manufactured by Powerex Inc. It features a TO-83 package and supports a repetitive peak off-state voltage of 400 V. The device handles an average on-state current of 110 A and a maximum RMS on-state current of 110 A. Gate trigger parameters include a maximum gate trigger voltage of 5 V and a maximum gate trigger current of 150 mA. The component operates within a junction temperature range of -40°C to 125°C.

Scrs Feature Summary

• Standard recovery thyristor construction for efficient switching
• Robust TO-83 base-mounted package design
• High thermal stability across wide operating temperatures

Scrs Applications

• Industrial motor drives
• Power supply circuits
• Inverter systems

Scrs Procurement Notes

Verify the specific suffix designation against the manufacturer's official datasheet to ensure correct electrical characteristics and pinout configuration. Confirm RoHS compliance status and moisture sensitivity level requirements prior to integration into the final assembly process.

Scrs Selection Notes

Select this component based on the required 400 V blocking capability and 110 A continuous current handling. Ensure the application circuit provides adequate gate drive current exceeding 150 mA. Verify that the thermal management system can maintain the junction temperature below 125°C under full load conditions.

Scrs Part Context

This SCR belongs to the C-series lineup from Powerex Inc., designed for general-purpose power control applications. The TO-83 form factor allows for direct mounting onto heatsinks, facilitating effective heat dissipation in compact industrial electronic designs requiring reliable high-current switching.

Scrs Replacement Considerations

Cross-reference with other 400V 110A TO-83 SCRs from manufacturers like Littelfuse or Microsemi. Verify identical pin configurations and thermal resistance values before substitution.