MDI400-12E4

Overview

The MDI400-12E4 is a single-phase IGBT module from IXYS, rated for 1200 V collector-emitter voltage and 420 A continuous collector current at 25°C case temperature. It integrates NPT3 IGBTs with HiPerFRED free-wheeling diodes in a low-inductive package designed for phase-leg and chopper topologies. The module features a typical saturation voltage of 2.2 V and includes an optional NTC temperature sensor for case monitoring. Electrical characteristics include a maximum switching frequency capability supported by fast reverse recovery times and positive temperature coefficients for safe parallel operation.

Feature Summary

• NPT3 IGBT technology providing low saturation voltage and positive temperature coefficient
• HiPerFRED free-wheeling diodes featuring fast and soft reverse recovery characteristics
• Low inductive current path design with screw connections for high-current main terminals
• Kelvin emitter terminal configuration to facilitate easy gate drive connection

Applications

• AC and DC motor drives
• Power supplies with power factor correction and recuperation capability
• Uninterruptible power supplies (UPS)

Procurement Notes

Verify the specific ordering suffix against the manufacturer's datasheet to confirm the presence of the NTC sensor, as indicated by the '(T)' designation in related part numbers within the same family. Ensure that auxiliary connectors are non-interchangeable types compatible with the specified pinout. Confirm mounting torque specifications for both the module base and terminals during assembly to maintain thermal interface integrity.

Selection Notes

Select this component for applications requiring high current density and robust short-circuit withstand capability up to 10 µs. Consider the thermal resistance values when designing heatsinking solutions, noting the difference between junction-case and junction-heatsink paths. Evaluate the gate charge requirements against the available driver strength to ensure optimal switching performance within the specified temperature range.

Part Context

This module belongs to the IXYS IGBT module series utilizing NPT3 technology. It is functionally similar to the MII400-12E4 and MID400-12E4(T), differing primarily in internal topology configuration such as phase-leg versus chopper arrangements. The product line emphasizes reliability in traction and industrial inverter applications through its isolated ceramic base plate construction.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.