IGBT Modules: QM300HA-H and PM400HSA120

QM300HA-H Overview

The QM300HA-H is an insulated-gate bipolar transistor (IGBT) module designed for high-power applications. This module is manufactured by Mitsubishi Electric and is widely recognized for its robustness and efficiency in switching applications.

Key Specifications:

• Voltage Rating: 600V
• Current Rating: 300A
• Switching Frequency: Up to 20kHz
• Package Type: Module with insulated base
• Features: This module includes built-in free-wheel diodes and is designed to provide low conduction losses and high-speed switching capabilities.

PM400HSA120 Overview

The PM400HSA120 is another high-performance IGBT module, also manufactured by Mitsubishi Electric.

Key Specifications:

• Voltage Rating: 1200V
• Current Rating: 400A
• Switching Frequency: Up to 20kHz
• Package Type: Mini Dual Flat Package
• Features: The PM400HSA120 includes complete output power circuits, gate drive circuits, and protection logic for short circuits, over-current, over-temperature, and under-voltage conditions. ​

Comparison and Potential for Substitution

Key Differences

1. Voltage and Current Ratings:
   • QM300HA-H: 600V, 300A
   • PM400HSA120: 1200V, 400A
2. Package Type:
   • QM300HA-H: Standard module with insulated base.
   • PM400HSA120: Mini Dual Flat Package designed for efficient thermal dissipation.
3. Features:
   • Both modules offer robust protection features, The PM400HSA120 includes integrated gate drive and protection logic circuits.
4. Applications:
   • While both modules are suited for high-power applications, the PM400HSA120’s higher voltage and current ratings make it more suitable for demanding applications requiring higher power handling.

Interchangeability

The QM300HA-H and PM400HSA120 are not directly interchangeable due to their different voltage and current ratings and package types. The PM400HSA120 can handle higher power applications compared to the QM300HA-H. Therefore, substituting one for the other without considering these differences could result in suboptimal performance or potential damage to the system.

In summary, while both the QM300HA-H and PM400HSA120 are excellent choices for high-power applications, their specific characteristics make them suitable for different use cases.

For more details on these modules, you can visit their respective product pages on Shunlongwei Co., Ltd.:

• QM300HA-H
• PM400HSA120