Content last revised on March 3, 2026
CM1000HA-24E
The CM1000HA-24E is a high-power 1200V | 1000A single IGBT Module designed for megawatt-class industrial power conversion. Featuring Mitsubishi 6th Generation technology, it delivers Vce(sat) as low as 2.1V to minimize conduction losses in heavy-duty applications. This module is the definitive solution for 800V DC bus systems requiring maximum thermal margin and current handling. For systems prioritizing thermal stability in high-power density environments, the CM1000HA-24E is the optimal choice.
Application Scenarios & Value
Achieving System-Level Reliability in Megawatt Power Conversion
Engineers often face the daunting challenge of managing extreme thermal stress during high-current peaks in Variable Frequency Drive (VFD) and Solar Inverter designs. In a 500kW motor drive system, the CM1000HA-24E provides the necessary current headroom to handle heavy startup torques without triggering over-temperature faults. By utilizing its 1000A continuous collector current rating, designers can reduce the number of paralleled devices, simplifying Gate Drive complexity and minimizing parasitic inductance in the DC bus layout.
In renewable energy sectors, specifically large-scale wind turbine converters, the Power Cycling Capability of this module ensures long-term operation under fluctuating load conditions. For projects requiring slightly lower current handling within the same voltage class, the CM600HA-24H offers a compatible 600V alternative. Effectively managing heat in these systems is critical; understanding why Rth matters can significantly influence the selection of heatsinks and cooling methods for the CM1000HA-24E.
Technical Deep Dive
Optimizing Heat Dissipation through the HA-Package Thermal Path
The engineering excellence of the CM1000HA-24E lies in its specialized HA package. Think of the thermal path in a standard power module like a narrow, congested suburban road; in contrast, the CM1000HA-24E package functions like a multi-lane superhighway, allowing heat to flow from the silicon junction to the baseplate with minimal resistance. This is quantified by its remarkably low Rth(j-c) of 0.025 K/W, which allows the module to maintain a lower junction temperature even when switching 1000A loads.
Furthermore, the 6th Generation IGBT chip inside utilizes a refined trench gate structure that reduces the Miller Capacitance. This leads to faster switching transitions and a significant reduction in Switching Loss. To prevent catastrophic failures in these high-energy environments, engineers must implement robust protection strategies, as detailed in our guide on IGBT failure analysis. The integration of a Kelvin Emitter terminal further improves signal integrity by isolating the gate drive loop from the high-current power path, preventing erratic switching caused by di/dt induced voltage drops.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Reliability
| Characteristic | Symbol | Rating / Condition |
|---|---|---|
| Collector-Emitter Voltage | Vces | 1200V |
| Collector Current (DC) | Ic | 1000A (at Tc=60°C) |
| Saturation Voltage | Vce(sat) | 2.1V (Typ. at Ic=1000A) |
| Gate-Emitter Voltage | Vges | ±20V |
| Thermal Resistance | Rth(j-c) | 0.025 K/W (IGBT part) |
| Isolation Voltage | Viso | 2500V AC (1 min) |
Download the CM1000HA-24E datasheet for detailed specifications and performance curves.
FAQ
How does the Rth(j-c) of 0.025 K/W directly impact heatsink selection for the CM1000HA-24E?
A lower Rth(j-c) means the temperature delta between the junction and case is minimized. For the CM1000HA-24E, this allows engineers to use smaller, more cost-effective liquid-cooling cold plates while still maintaining the junction temperature well below the 150°C limit during peak 1000A operation.
What is the primary benefit of the single-switch (1-in-1) configuration in high-current designs?
The single-switch configuration of the CM1000HA-24E provides maximum flexibility for building custom bridge topologies. It allows for optimized busbar routing to minimize stray inductance, which is critical for reducing voltage overshoots during high-speed switching transitions at 1200V.
Does the CM1000HA-24E require a negative gate voltage for reliable turn-off?
Yes, it is standard practice for high-current modules like the CM1000HA-24E to use a Negative Gate Voltage (typically -5V to -15V). This prevents accidental turn-on caused by the Miller Effect during high dv/dt events, ensuring the device remains securely off when the complementary switch in a half-bridge is active.
What mounting torque is recommended for the main power terminals?
For the CM1000HA-24E, the power terminals typically require a torque of 7~10 N·m. Precise torque is essential to ensure low contact resistance and to prevent mechanical stress on the internal ultrasonic wire bonds, which can be a point of failure if handled incorrectly.
Can the CM1000HA-24E be used in 690V AC line applications?
Yes, its 1200V rating provides a sufficient safety margin for 690V AC line rectified buses (typically ~975V DC). However, designers must carefully evaluate the Snubber Circuit to manage inductive voltage spikes and ensure the module stays within its RBSOA (Reverse Bias Safe Operating Area).
Strategic alignment with the Mitsubishi 6th Gen platform allows the CM1000HA-24E to remain a cornerstone of industrial power design. Its combination of 1000A capacity and ultra-low thermal resistance supports the global shift toward higher efficiency and higher power density in the grid-scale energy transition.