Content last revised on January 9, 2026
Mitsubishi CM400HA-24A IGBT Module | Robust High-Power Switching for Demanding Applications
The Mitsubishi Electric CM400HA-24A is a high-performance IGBT module engineered for reliability in the most strenuous power conversion systems. As a cornerstone of the proven H-Series, this 1200V / 400A single IGBT module delivers exceptional durability and efficiency, making it a premier choice for designers of high-power inverters, industrial motor drives, and uninterruptible power supplies (UPS).
Technical Deep Dive: The Engineering Behind the CM400HA-24A
Two core attributes set the CM400HA-24A apart: its optimized power loss characteristics and its robust physical construction. These are not just datasheet figures; they translate directly into tangible system-level benefits.
- Optimized for Low Conduction Loss: The module leverages Mitsubishi's advanced trench-gate and emitter design to achieve a remarkably low collector-emitter saturation voltage (Vce(sat)). This directly minimizes power dissipated as heat during on-state operation. For a 400A device, this efficiency gain is substantial, allowing for smaller heatsinks, reduced cooling system requirements, and ultimately, lower operational energy costs.
- Superior Thermal Cycle Durability: The CM400HA-24A features a high-reliability construction with an isolated baseplate. This design ensures excellent thermal conductivity away from the silicon die while minimizing the mechanical stress caused by thermal expansion mismatches during power cycling. This superior IGBT thermal management is critical for extending the service life of equipment that operates under heavy, cyclical loads, such as motor controllers and welding machines.
Application Scenarios & Value Proposition
The technical strengths of the Mitsubishi CM400HA-24A solve specific challenges across various high-power applications:
- Industrial Motor Drives: In large AC motor controls, the module's robustness effortlessly handles high inrush currents during startup. Its low Vce(sat) contributes to higher overall drive efficiency, reducing energy consumption in factory automation and processing plants.
- Uninterruptible Power Supplies (UPS): For data centers and critical facilities, UPS reliability is non-negotiable. The thermal stability of the CM400HA-24A ensures it can sustain full load operation during extended power outages without succumbing to thermal stress, safeguarding critical infrastructure.
- High-Power DC-DC Converters: In applications like battery charging systems or renewable energy converters, the module's combination of fast switching and low losses enables higher frequency operation, which can lead to smaller and lighter magnetic components and improved power density.
- Welding & Induction Heating: These applications impose severe, repetitive current pulses. The module's rugged internal structure and excellent thermal cycling capability ensure it can withstand this harsh operating environment, delivering precise power control and long-term equipment reliability.
Key Technical Parameters
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 1200 V |
| Collector Current (Ic) | 400 A |
| Collector-Emitter Saturation Voltage (Vce(sat)) (Typ. @ Ic=400A, Tj=125°C) | 1.75 V |
| Maximum Junction Temperature (Tjmax) | 150 °C |
| Isolation Voltage (Visol) (AC, 1 min.) | 2500 Vrms |
| Package | H-Series Standard Module |
For complete specifications, please contact us for the official datasheet.
Frequently Asked Questions (FAQ)
- What is the primary advantage of a single IGBT configuration like the CM400HA-24A?
A single IGBT configuration offers maximum design flexibility. It allows engineers to create custom topologies such as choppers, phase-legs for multi-level inverters, or parallel configurations for very high-current applications, providing more control than integrated multi-switch modules. - How critical is the gate driver for this module?
Extremely critical. A properly designed gate driver circuit is essential to achieve the specified switching performance and ensure protection. We recommend a drive voltage of +15V/-10V and a gate resistor value carefully selected to balance switching speed with EMI control. - Is this module suitable for new designs or mainly for replacement?
Both. While the CM400HA-24A is a trusted component for maintaining existing industrial equipment, its proven reliability and robust performance make it an excellent, low-risk choice for new designs in industrial power electronics where long-term dependability is the priority.
When your design demands a high-power IGBT module that balances efficiency with uncompromising reliability, the Mitsubishi CM400HA-24A is an exemplary choice. To further explore solutions for your power conversion needs, browse our full catalog of IGBT Modules or reach out to our technical team for personalized support.
