MEK250-12DA

Overview

The MEK250-12DA is a Fast Recovery Epitaxial Diode (FRED) module manufactured by IXYS. It features a 1200 V repetitive peak reverse voltage and supports an average forward current of 260 A at a case temperature of 150°C with a duty cycle of 0.5. The device exhibits a typical reverse recovery time of 450 ns. It utilizes a DCB ceramic base plate for thermal management and provides an isolation voltage of 3600 Vrms.

Feature Summary

• Planar passivated chips integrated on a DCB ceramic base plate
• Soft recovery behavior to minimize switching noise
• Short recovery time for reduced switching losses
• High isolation voltage rating

Applications

• Antiparallel diode for high frequency switching devices
• Free wheeling diode in converters and motor control circuits
• Inductive heating and melting systems
• Uninterruptible power supplies (UPS)
• Ultrasonic cleaners and welders

Procurement Notes

Verify the specific suffix against official datasheets, as variations may exist within the MEA/MEK/MEE series. Confirm compliance with RoHS directives and UL registration E72873 during sourcing. Ensure mounting torque specifications are strictly followed to maintain thermal performance and mechanical integrity. Validate component authenticity through authorized distribution channels.

Selection Notes

Select this module for applications requiring robust soft recovery characteristics and low voltage peaks. The design reduces the need for extensive protection circuits and minimizes electromagnetic interference. Evaluate thermal resistance parameters relative to the specific heatsink configuration to ensure junction temperatures remain within safe operating limits under continuous load conditions.

Part Context

This component belongs to the MEA/MEK/MEE 250 series of fast recovery epitaxial diode modules from IXYS. These modules are engineered for high-power industrial environments, offering standardized packaging with a DCB ceramic base plate. The series is designed to handle significant current loads while maintaining efficient thermal dissipation and reliable operation in demanding power conversion topologies.

Replacement Considerations

Direct substitutes include the MEA250-12DA and MEE250-12DA from the same manufacturer family. Verify pinout compatibility and thermal interface dimensions before substitution. Ensure the alternative part meets or exceeds the required 1200 V blocking voltage and 260 A current handling capabilities.