CMA50E1600QB

Scrs Overview

The CMA50E1600QB is a Silicon Controlled Rectifier (SCR) manufactured by IXYS, designed for phase control applications. It features a rated repetitive off-state voltage (VDRM) of 1600 V and an RMS on-state current (IT(RMS)) of 79 A. The device exhibits a forward voltage drop (VF) of 1.23 V at rated current. Gate triggering requirements include a maximum gate trigger voltage (VGT) of 1.4 V and a gate trigger current (IGT) of 80 mA. The component operates within a junction temperature range from -40 °C to +150 °C and utilizes an I4-PAC-5 through-hole package.

Scrs Feature Summary

• High-voltage blocking capability suitable for demanding power conversion environments
• Robust thermal performance with a maximum operating junction temperature of 150 °C
• Low forward voltage conduction characteristics for efficient power handling
• Standardized through-hole mounting configuration for reliable mechanical integration

Scrs Applications

• Industrial motor drive systems requiring high-power phase control
• Solid-state relay circuits for heavy-duty switching applications
• Power supply units utilizing SCR-based rectification or regulation

Scrs Procurement Notes

Verify the specific suffix 'QB' against official IXYS documentation to confirm exact pinout, marking, and compliance status. Distributor listings may vary in accuracy regarding package details. Ensure the requested part matches the verified datasheet specifications before finalizing procurement orders to avoid functional mismatches.

Scrs Selection Notes

Select this component when a 1600 V rating and 79 A continuous current capacity are required in a through-hole form factor. Compare gate sensitivity requirements against the 80 mA trigger current specification. Evaluate thermal management needs given the 150 °C maximum junction temperature limit and the specific thermal resistance characteristics of the I4-PAC-5 package.

Scrs Part Context

This SCR belongs to the CMA series of phase control thyristors from IXYS. The series is characterized by high reliability and robust construction for industrial power electronics. The CMA50E1600QB shares core electrical parameters with other variants in the family, differing primarily in packaging or specific manufacturing batch identifiers defined by the manufacturer.

Scrs Replacement Considerations

Cross-reference with CMA50P1600FC for identical electrical ratings in a similar through-hole package. Verify that any substitute maintains the same VDRM, IT(RMS), and package dimensions to ensure compatibility with existing PCB layouts and thermal designs.