CM400HA-34H

Overview

The CM400HA-34H is a single IGBTMOD™ H-Series power module manufactured by Powerex, Inc. It features one N-channel IGBT transistor and an integrated reverse-connected super-fast recovery free-wheel diode (FWDi). The device is rated for a collector-emitter voltage (V_CES) of 1700 Volts and a continuous collector current (I_C) of 400 Amperes at Tc=80°C. Peak collector current reaches 800 Amperes. Key electrical parameters include a typical V_CE(sat) of 2.7V at 400A/15V, a gate threshold voltage (V_GE(th)) of 6.0V, and a total gate charge (Q_G) of 2900nC. Thermal resistance from junction to case is 0.030°C/W for the IGBT and 0.060°C/W for the FWDi.

Feature Summary

• Single configuration with integrated discrete super-fast recovery free-wheel diode
• Isolated baseplate design for simplified system assembly and thermal management
• Optimized for high-frequency switching applications between 20kHz and 25kHz
• Low drive power requirements combined with low saturation voltage

Applications

• AC Motor Control systems
• Auxiliary Inverters for Traction drives
• Uninterruptible Power Supplies (UPS)
• Welding Power Supplies
• Laser Power Supplies

Procurement Notes

Verify the manufacturer origin as Powerex, Inc., distinct from Mitsubishi Electric despite shared naming conventions in some markets. Confirm the specific ordering suffix '34H' corresponds to the 1700V rating and H-Series generation. Request the official datasheet to validate absolute maximum ratings and thermal characteristics before integration.

Selection Notes

Select this component for high-voltage, high-current single-phase switching topologies requiring fast recovery diodes. Ensure the cooling solution accommodates the specified thermal resistance values. Verify that the gate drive circuit provides the recommended ±15V swing to achieve optimal switching performance and minimize losses within the 1700V blocking capability.

Part Context

This module belongs to the IGBTMOD™ H-Series lineup designed for robust industrial switching. It integrates a single IGBT die with a complementary anti-parallel diode on an electrically isolated copper baseplate. The package utilizes M8 terminal screws for collector/emitter connections and M4 screws for gate terminals, facilitating secure mounting in high-power converter assemblies.

Replacement Considerations

Direct replacement requires matching the 1700V/400A rating and single-phase topology. Verify pinout compatibility and thermal interface dimensions. Note that switching characteristics may vary between generations; adjust gate resistors and snubber circuits accordingly when substituting.