C440D

Scrs Overview

The Powerex C440D is a Silicon Controlled Rectifier (SCR) designed for high-power phase control applications. It features a disk button package with ceramic metal-sealed cofired construction, supporting operation up to 125°C. The device provides a maximum repetitive peak off-state voltage of 400V and an RMS on-state current of 1099A. Key electrical characteristics include a gate trigger voltage of 5V, a holding current of 100mA, and a circuit commutated turn-off time of 20µs.

Scrs Feature Summary

• High thermal stability enabled by ceramic metal-sealed cofired packaging
• Fast circuit commutation capability suitable for demanding switching environments
• Robust surge current handling with non-repetitive peak forward current of 12000A

Scrs Applications

• Industrial motor drives and variable frequency drives
• High-power DC power supplies and rectifiers
• Resistive load control systems

Scrs Procurement Notes

Verify the specific suffix code against official datasheets to confirm exact ratings and pinout configurations. Ensure compatibility with mounting hardware for the disk button form factor. Confirm thermal interface requirements for the specified operating temperature range. Validate that the gate drive circuitry meets the 5V trigger voltage specification.

Scrs Selection Notes

Select this component when high RMS current capacity and fast turn-off times are required in a compact disk package. Consider the 400V voltage rating relative to system line voltages. Evaluate the thermal management needs given the 125°C maximum junction temperature limit. Compare the 1099A RMS current against peak load demands to ensure adequate safety margins.

Scrs Part Context

This SCR belongs to Powerex's high-power discrete semiconductor lineup, utilizing robust disk button technology. It is engineered for industrial environments requiring reliable phase control. The device integrates silicon die into a hermetically sealed structure for durability. It serves as a core switching element in heavy-duty power conversion architectures.

Scrs Replacement Considerations

Cross-reference with other Powerex disk SCRs sharing the T82 package outline. Verify matching voltage and current ratings before substitution. Check for identical gate trigger parameters to ensure circuit compatibility.