Mitsubishi CM150TX-24S | 1200V/150A IGBT Module Engineered for High-Efficiency Power Conversion
The Mitsubishi CM150TX-24S is a high-performance IGBT module designed for engineers who require a robust and efficient solution for medium to high-power switching applications. As a cornerstone of Mitsubishi's S-Series, this module encapsulates decades of power semiconductor expertise, delivering an optimal balance of low conduction losses, superior thermal performance, and proven reliability for demanding industrial environments.
Product Highlights Overview
The CM150TX-24S is engineered to solve critical design challenges in modern power electronics. Its value proposition is built on several key features:
- Exceptional Energy Efficiency: Leveraging Mitsubishi's advanced 6th generation CSTBT™ (Carrier Stored Trench-gate Bipolar Transistor) technology, this module achieves a very low collector-emitter saturation voltage (VCE(sat)), directly translating to reduced conduction losses and lower operating temperatures.
- Robust and Reliable Operation: Housed in a standard industrial package, the module is designed for longevity. Its comprehensive Safe Operating Area (SOA) and short-circuit withstand time provide the resilience needed for applications like motor startups and grid-tied inverters.
- Simplified Thermal Management: The module features an AlN (Aluminum Nitride) ceramic insulator, which offers superior thermal conductivity compared to standard Alumina (Al2O3). This ensures efficient heat transfer from the silicon die to the heatsink, simplifying system cooling design and enhancing long-term reliability.
- Integrated Half-Bridge Configuration: The 2-in-1 (half-bridge) topology is ideal for building compact and efficient three-phase inverter bridges, reducing component count and simplifying PCB layout.
Technical Deep Dive: CSTBT™ and Thermal Performance
At the heart of the Mitsubishi CM150TX-24S is the proprietary Mitsubishi CSTBT™ technology. Unlike conventional trench IGBTs, this structure introduces a carrier-stored layer beneath the n-drift region. This engineering innovation allows for a dramatic reduction in on-state voltage by optimizing carrier concentration, without a significant trade-off in switching speed. For the design engineer, this means the VCE(sat) is a low 1.70V (typical) at its nominal 150A rating. This directly minimizes power dissipation (P_cond = VCE(sat) * Ic), a critical factor in achieving higher efficiency standards like IE3/IE4 in motor drives.
Furthermore, the integrated free-wheeling diode (FWD) is co-packaged and optimized for soft recovery characteristics. A "soft" recovery reduces voltage overshoots and high-frequency ringing during turn-off, which in turn lowers electromagnetic interference (EMI). This can lead to smaller, less expensive snubber circuits and EMI filters, saving both board space and cost.
Key Technical Specifications: Mitsubishi CM150TX-24S
| Parameter | Symbol | Value |
|---|---|---|
| Collector-Emitter Voltage | VCES | 1200V |
| Collector Current (DC) | IC | 150A |
| Collector-Emitter Saturation Voltage (Tj=125°C) | VCE(sat) | 1.70V (typ.) / 2.15V (max.) |
| Maximum Junction Temperature | Tj(max) | 150°C |
| Short-Circuit Withstand Time | tsc | 10µs |
| Thermal Resistance (Junction to Case, per IGBT) | Rth(j-c)C | 0.14 °C/W (max.) |
For a comprehensive breakdown of all parameters and characteristic curves, you can download the official CM150TX-24S datasheet here.
Core Application Areas and Engineering Advantages
The robust feature set of the CM150TX-24S makes it an ideal choice for a range of demanding applications:
- Industrial Motor Drives: In variable frequency drives (VFDs), its low total power loss (conduction + switching) allows for more compact and reliable systems, while its ruggedness handles the high-current demands of AC motor control.
- Renewable Energy Inverters: For solar and wind power conversion, every percentage point of efficiency matters. The module's low VCE(sat) maximizes energy harvest, and its proven reliability ensures long operational life in the field. This component is a workhorse in systems focused on the power of control IGBTs at the heart of wind-to-grid conversion.
- Uninterruptible Power Supplies (UPS): In mission-critical UPS systems, reliability is paramount. The CM150TX-24S provides the stable, efficient power switching required to protect sensitive loads, operating with high efficiency in both online and battery modes.
- Welding Power Supplies: The module’s ability to handle high pulse currents and its fast, controlled switching make it suitable for advanced welding applications that require precise energy delivery.
For engineers seeking to maximize the performance and longevity of their power systems, understanding common failure modes is crucial. To avoid issues, review our in-depth guide on IGBT failure analysis for practical prevention strategies.
