Content last revised on November 3, 2025
Mitsubishi CM300DY-24H | Robust 1200V/300A Dual IGBT for High-Reliability Power Conversion
The Mitsubishi CM300DY-24H is not just another component; it's a cornerstone of industrial power electronics. This 1200V, 300A dual IGBT module has earned its reputation as a workhorse, delivering exceptional reliability and stable performance in some of the most demanding applications. Designed for engineers and system integrators who prioritize long-term operational integrity, the CM300DY-24H offers a perfectly balanced profile of efficiency, durability, and cost-effectiveness for high-power inverter and converter designs.
Engineering Excellence: A Closer Look at Core Technologies
The enduring success of the Mitsubishi CM300DY-24H lies in its sophisticated, field-proven internal architecture. Two key features stand out:
- CSTBT™ (Carrier Stored Trench-Gate Bipolar Transistor) Technology: This is Mitsubishi's signature innovation. By incorporating an additional carrier storage layer at the chip level, the module achieves a remarkably low on-state saturation voltage (Vce(sat)). Application Value: For you, this translates directly into lower conduction losses. Lower losses mean less waste heat, allowing for smaller, more cost-effective heatsinks and improving the overall energy efficiency of your system—a critical factor in motor drives and high-power supplies.
- Optimized Free-Wheeling Diode (FWD): Paired with the IGBT switches, the FWDs in this module are engineered for soft recovery characteristics. This controlled, less abrupt turn-off behavior significantly mitigates voltage overshoot and reduces high-frequency noise. Application Value: This simplifies your system design by reducing the need for complex snubber circuits and making electromagnetic compatibility (EMC) compliance easier and faster to achieve.
Where the CM300DY-24H Excels: Tailored for Demanding Industrial Systems
This module's specifications are not just numbers on a page; they deliver tangible benefits across multiple high-stakes applications:
- Industrial Motor Drives: In high-power variable frequency drives (VFDs), the low Vce(sat) of the Mitsubishi CM300DY-24H directly improves energy efficiency under heavy load conditions. Its renowned thermal ruggedness ensures it can withstand punishing load cycles, enhancing the lifespan and reliability of the entire drive system.
- Uninterruptible Power Supplies (UPS): For critical infrastructure, reliability is paramount. The module's robust construction and high surge current capability provide the stability needed to ensure a seamless transition to backup power, protecting sensitive data centers and medical equipment.
- Welding Equipment: Welding applications subject components to intense, high-frequency current pulses. The CM300DY-24H's excellent thermal management and controlled switching make it a prime candidate for building durable, precise, and highly reliable welding power sources.
- Renewable Energy Inverters: In solar or wind power conversion, efficiency and long-term reliability are key to maximizing return on investment. This IGBT module provides the robust power switching foundation needed for large-scale grid-tied inverters.
CM300DY-24H Key Parameters at a Glance
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (VCES) | 1200V |
| Collector Current (IC) | 300A |
| Collector-Emitter Saturation Voltage (VCE(sat)) (Max @ IC=300A) | 2.7V |
| Package Type | Standard H-Series Dual Module |
For a comprehensive overview of all electrical and thermal characteristics, please refer to the official CM300DY-24H Datasheet.
Choosing the Right Module: Proven Workhorse vs. Latest Technology?
Engineers often face a choice: select a time-tested, robust module or opt for the latest generation with the lowest switching losses. While newer modules may offer incremental efficiency gains, the Mitsubishi CM300DY-24H holds a unique position. It represents a pinnacle of proven, dependable technology. Its primary advantage is its predictable performance envelope and exceptional ruggedness, making it an ideal choice for upgrading existing systems or for new designs where long-term field reliability is the most critical design parameter. If your project demands uncompromising durability over absolute cutting-edge efficiency, this module remains an unparalleled choice.
For further assistance in your selection process or to explore our full range of power modules, feel free to Contact Us for a Quote. Our team can help you identify the perfect component for your specific application. You can also Explore More IGBT Modules in our catalog.
