Mitsubishi CM1500HC-66R IGBT Module

Mitsubishi Electric CM1500HC-66R | High-Reliability 3.3kV High-Voltage IGBT Module

Product Overview

The Mitsubishi Electric CM1500HC-66R is a high-performance, high-voltage IGBT (HVIGBT) module engineered for the most demanding high-power conversion systems. With a formidable 3300V blocking voltage and a 1500A continuous collector current rating, this module provides a robust and efficient switching solution for applications such as medium-voltage industrial motor drives, traction systems, and grid-level power transmission. The CM1500HC-66R is designed not just for high power, but for exceptional reliability and thermal performance, enabling designers to build more compact, efficient, and durable power electronics.

Core Product Features In-Depth

• 7th Generation CSTBT™ III Technology

  • Technical Principle: At the heart of the CM1500HC-66R lies Mitsubishi's proprietary 7th generation Carrier Stored Trench-gate Bipolar Transistor (CSTBT™) technology. This advanced silicon design optimizes the carrier concentration within the drift layer, achieving a superior trade-off between the collector-emitter saturation voltage (Vce(sat)) and turn-off switching losses (Eoff). This effectively breaks the traditional performance barrier seen in standard IGBTs.
  • Application Value: For system designers, this translates directly into lower power dissipation. The reduced Vce(sat) minimizes conduction losses during on-state operation, while the optimized switching characteristics reduce energy loss during transitions. The result is higher overall inverter efficiency, a significant reduction in waste heat, and the ability to use smaller, more cost-effective heatsink solutions, ultimately improving the system's power density.

• Integrated RFC (Relaxed Field of Cathode) Diode

  • Technical Principle: This module incorporates an advanced freewheeling diode (FWD) featuring RFC technology. This design ensures a "soft" reverse recovery characteristic, which means the diode current falls smoothly without inducing high-frequency oscillations or significant voltage overshoot during turn-off. It effectively dampens the switching transients inherent in high-power circuits.
  • Application Value: A major pain point in high-power inverter design is managing electromagnetic interference (EMI) and preventing destructive voltage spikes. The soft-recovery FWD in the Mitsubishi CM1500HC-66R significantly mitigates these issues at the source, simplifying the system's EMC filtering design, reducing the need for external snubber circuits, and enhancing the overall reliability and longevity of the power stage.

Typical Application Scenarios & Value Proposition

• Medium-Voltage Industrial Motor Drives: In large-scale manufacturing and processing plants, the CM1500HC-66R's low conduction losses directly reduce the operational energy costs of multi-megawatt motors. Its high thermal cycling capability ensures long service life under demanding start-stop and variable load conditions, minimizing downtime.
• Traction & Railway Propulsion: The module's high power density and robust, low-inductance packaging are critical for transportation applications where space and weight are at a premium. Its high reliability ensures safe and consistent operation in the harsh vibrational and thermal environments of modern railway systems.
• HVDC Power Transmission & FACTS: For grid-tied applications like High-Voltage Direct Current (HVDC) converters and Flexible AC Transmission Systems (FACTS), reliability is non-negotiable. The 3.3kV rating and stable performance of the CM1500HC-66R provide the foundation for robust and efficient grid management and power distribution infrastructure.
• High-Power Renewable Energy Inverters: In large-scale wind turbine or solar farm inverters, maximizing energy yield is the primary goal. The superior efficiency of the CSTBT™ III technology ensures that more of the generated renewable energy is successfully converted and delivered to the grid, improving the plant's overall return on investment. If you are working on similar high-power designs, feel free to explore our full range of IGBT modules.

Key Technical Specifications

For a comprehensive list of parameters, download the full datasheet: CM1500HC-66R Datasheet

Product Comparison & Selection Guide

When evaluating solutions for a 3.3kV application, designers might compare the Mitsubishi CM1500HC-66R against similar high-voltage modules from other manufacturers or the approach of connecting two 1700V IGBTs in series. Compared to competitor modules, the CM1500HC-66R's primary advantage often lies in its CSTBT™ technology, which provides exceptionally low Vce(sat) for applications where conduction losses dominate. While other modules might offer slightly faster switching speeds, they often do so at the cost of higher on-state voltage.

Compared to a series-connected 1700V solution, the single CM1500HC-66R module offers vastly superior design simplicity and reliability. It eliminates the need for complex voltage balancing networks and precisely matched gate drives, reducing component count, potential points of failure, and engineering complexity. For new high-reliability designs, a single, dedicated 3.3kV module is almost always the superior choice. To discuss your specific application needs and get a competitive quote, please contact our technical team.