CM150DX-24S Mitsubishi Electric 1200V 150A IGBT Module

Content last revised on March 13, 2026

CM150DX-24S Mitsubishi Electric 1200V 150A Dual IGBT Module

The CM150DX-24S represents a cornerstone in high-efficiency power conversion, specifically designed by Mitsubishi Electric for demanding industrial environments. As a dual IGBT module utilizing the advanced CSTBT™ (Carrier Stored Trench-Gate Bipolar Transistor) technology, it delivers an optimized balance between low conduction losses and high-speed switching capabilities. This module is an essential building block for engineers developing robust inverter stages where thermal reliability and power density are non-negotiable requirements.

UVP: Optimized Thermal Precision and Switching Efficiency for High-Density Power Systems.

Core Specifications: 1200V | 150A | Vce(sat) 1.8V (Typ.)

• Loss Reduction: Optimized CSTBT™ architecture reduces collector-emitter saturation voltage, lowering overall power dissipation.
• Integrated Sensing: Features an internal NTC thermistor for precise temperature monitoring and system-level thermal protection.

The primary benefit of the integrated NTC thermistor in the CM150DX-24S is that it allows for real-time junction temperature feedback, enabling proactive thermal management and eliminating the need for external temperature sensors. For Variable Frequency Drive (VFD) systems prioritizing thermal margin and longevity, this 1200V module is the optimal choice.

Key Parameter Overview

Decoding the Specs for Enhanced System Reliability

The technical performance of the CM150DX-24S is defined by its 6th Generation technology, which addresses the critical trade-off between switching speed and durability. The parameters below reflect the standardized ratings provided by the Mitsubishi Electric official technical documentation.

Download the CM150DX-24S datasheet for detailed specifications and performance curves.

Application Scenarios & Value

Maximizing Uptime in Industrial Motion and Energy Conversion

Engineers often face the challenge of managing heat in compact enclosures without sacrificing peak current performance. The CM150DX-24S solves this by offering a low Rth(j-c) of 0.13 K/W, which ensures efficient heat transfer from the silicon junction to the heatsink. This makes it particularly effective in Servo Drive applications where rapid load changes generate significant thermal stress.

• Renewable Energy Systems: Ideal for Solar Inverters and wind converters where high Vces of 1200V is required to handle DC bus fluctuations while maintaining peak efficiency.
• Uninterruptible Power Supplies (UPS): The low switching loss characteristics contribute to higher energy efficiency ratings and smaller cooling footprints in data center power protection.
• Industrial Drives: Specifically suited for Variable Frequency Drive (VFD) designs that must comply with IEC 61800-3 standards regarding efficiency and electromagnetic compatibility.

For systems requiring higher current handling capacity within the same voltage class, the related CM200DY-24H offers 200A capability. If your design prioritizes ultra-high power density in a similar NX-series package, consider the CM450DX-24T which features 7th Generation technology for even lower losses.

Technical Deep Dive

The Physics of Efficiency: CSTBT™ and Thermal Feedback

The CM150DX-24S utilizes Mitsubishi Electric's proprietary CSTBT™ technology. To visualize how this works, consider a high-performance water valve: conventional trench designs might restrict flow at high pressures, but CSTBT™ acts as a valve with an optimized internal channel that allows the same amount of current to pass with significantly less resistance (lower Vce(sat)). This physical structure reduces energy lost as heat during the conduction phase.

Furthermore, the NX-series package is designed for mechanical robustness. The internal layout minimizes parasitic inductance, which is critical for suppressing voltage spikes during high-frequency switching. By keeping the stray inductance low, engineers can reduce the complexity of the Snubber Circuit required to protect the module. This integration approach aligns with the industry's shift toward System Integration & Design Simplification, reducing total cost of ownership (TCO) by decreasing the external component count.

From a Thermal Management perspective, the direct copper bonding (DCB) substrate used in the CM150DX-24S provides superior electrical isolation while maintaining excellent thermal conductivity. This ensures that even during high-current Regenerative Braking cycles, the module remains within its Safe Operating Area (SOA).

Technical FAQ

How does the integrated NTC thermistor improve long-term system reliability?
The thermistor provides direct feedback on the baseplate temperature. By integrating this into the Gate Drive protection logic, the system can automatically derate the output current or trigger an alarm before the junction temperature exceeds its maximum rating, effectively preventing IGBT failure due to thermal overload.

What is the impact of the 1.8V Vce(sat) on heatsink design?
A lower Vce(sat) directly translates to lower conduction losses (P = Vce(sat) x Ic). For the CM150DX-24S, this means less thermal energy is dissipated in the module at a given current, allowing for smaller heatsink dimensions or higher operating ambient temperatures compared to older generation modules with higher saturation voltages.

Is the CM150DX-24S compatible with 690V AC line systems?
While a 1200V rating provides a safety margin for 400V-480V systems, 690V AC systems typically require 1700V modules due to the higher DC bus voltages (often exceeding 1000V). For 690V applications, engineers should verify if the peak voltage under all conditions remains within the Vces limits or opt for a higher-rated component.

As a specialized distributor, we provide comprehensive technical data to empower your engineering decisions. For more detailed insights into power electronics, explore our guide on analyzing IGBT modules or our deep dive into power semiconductor selection.