Mitsubishi CM150DY-12H IGBT Module

CM150DY-12H | 600V 150A Dual IGBT Module for Industrial Drives

Content last revised on October 21, 2025.

The Mitsubishi CM150DY-12H is a 600V/150A dual IGBT module engineered for high thermal efficiency and operational reliability in industrial motor drives and power conversion systems. It integrates two IGBTs in a half-bridge configuration, delivering a robust solution for power switching. Key specifications include: 600V | 150A | VCE(sat) of 2.7V (max). This module provides two primary engineering benefits: low conduction losses and proven operational reliability. The design directly addresses the need for dependable power stages in demanding industrial environments. Best fit for mid-power (30-75kW) variable frequency drives requiring a balance of performance and long-term thermal stability.

Key Parameter Overview

Decoding the Specs for Enhanced Thermal Reliability

The electrical and thermal characteristics of the CM150DY-12H are optimized for reliability in medium-frequency power conversion applications. Below is a summary of its performance-defining parameters, with key indicators for thermal and electrical stability highlighted.

Download the CM150DY-12H datasheet for detailed specifications and performance curves.

Application Scenarios & Value

System-Level Benefits in Industrial Motion Control

The CM150DY-12H is engineered for core industrial applications where operational uptime and predictable performance are paramount. Its primary value is demonstrated in systems such as Variable Frequency Drives (VFDs), motion/servo controllers, and uninterruptible power supplies (UPS).

Consider its use in the inverter stage of a 50kW VFD controlling a conveyor belt system in a logistics facility. The key challenge is managing heat generated during continuous operation. The module's low VCE(sat) directly translates to lower conduction losses—a primary source of waste heat. This is analogous to reducing friction in a mechanical system; less energy is wasted as heat, and more is delivered to the load. This efficiency simplifies the thermal management design, potentially allowing for a smaller heatsink and reducing overall system size and cost. For applications demanding higher current handling in a similar configuration, the CM300DY-12H offers double the current capacity.

The module's robust construction and 2500Vrms isolation ensure electrical safety and resilience against voltage transients common in industrial environments, contributing to the long-term reliability of the entire drive system. What is the benefit of its isolated baseplate? It simplifies mounting and improves thermal transfer to the heatsink.

Technical Deep Dive

A Closer Look at Thermal Design and Reliability

The long-term reliability of a power module is fundamentally linked to its thermal design. The CM150DY-12H features an architecture focused on effective heat dissipation. The thermal resistance from junction to case, Rth(j-c), is a critical parameter that defines how efficiently heat generated within the IGBT chip can be transferred to the heatsink. With a value of 0.21 °C/W for the IGBT, this module provides a low-resistance path for thermal energy. Think of Rth(j-c) as the size of a bottleneck in a pipe; a lower value means a wider bottleneck, allowing more heat to flow out easily, thus keeping the junction temperature lower under load.

This efficient thermal path, combined with a maximum junction temperature of 150°C, provides engineers with a solid thermal margin. This is crucial for systems that experience power cycling, as it helps mitigate thermally induced stress on the internal components, directly contributing to a longer operational lifespan. For engineers designing systems where reliability is a key metric, understanding and leveraging these thermal characteristics is essential. For further reading on module selection, see this practical guide to voltage, current, and thermal management.

Frequently Asked Questions (FAQ)

How does the low VCE(sat) of the CM150DY-12H benefit my design?

A low Collector-Emitter Saturation Voltage (VCE(sat)) of 2.7V (max) at the nominal 150A current reduces the power lost as heat during the on-state (conduction losses). This leads to higher overall inverter efficiency and reduces the thermal load on the heatsink, allowing for more compact and cost-effective thermal management solutions.

What is the significance of the 2500Vrms isolation voltage?

The 2500Vrms isolation voltage provides a robust barrier between the live electrical circuits and the module's baseplate, which is typically mounted to a grounded heatsink. This ensures safety for personnel and protects control-side electronics from high voltage potential, a critical requirement for compliance in industrial equipment design according to standards like IEC 61800-5-1.

Is this module suitable for high-frequency switching applications above 20kHz?

The CM150DY-12H, as part of the Mitsubishi H-Series, is optimized for low to medium switching frequencies, typically found in AC motor drives and UPS systems (up to ~15-20kHz). While it can operate at higher frequencies, its switching losses would increase, potentially requiring significant derating or more complex thermal management. For applications requiring higher frequencies, a different series of IGBTs specifically designed for fast switching may be more appropriate.

From a strategic perspective, the CM150DY-12H represents a workhorse component for mainstream industrial power conversion. Its design prioritizes a proven balance of electrical performance, thermal stability, and ruggedness, providing a reliable and cost-effective foundation for systems where long-term dependability is the primary engineering goal.