Content last revised on February 9, 2026
CM800HA-24H Mitsubishi Electric 1200V 800A Single IGBT Module
The CM800HA-24H, a cornerstone of the Mitsubishi Electric H-Series, is a high-power IGBT Module designed for demanding industrial switching applications. With a robust 1200V collector-emitter voltage and a continuous collector current rating of 800A, this module provides the heavy-duty power density required for megawatt-scale conversion. It serves as a reliable solution for engineers seeking to balance high current handling with the proven stability of 4th-generation trench technology. For 400V grid systems prioritizing thermal margin and longevity, this 1200V module stands as the optimal choice for high-capacity power stages.
Top Specs: 1200V | 800A | 4300W Max Dissipation
Key Benefits: Optimized for low saturation voltage; Insulated baseplate for simplified heat sink mounting.
Does the CM800HA-24H support high-frequency operation in large-scale UPS? While optimized for efficiency at standard industrial frequencies, its low VCE(sat) of 2.1V significantly reduces conduction losses in high-duty-cycle environments like data center power backups.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Reliability
Understanding the electrical boundaries of the CM800HA-24H is essential for system-level protection and cooling design. The following technical specifications are derived from official Mitsubishi Electric documentation to assist in precise engineering calculations.
| Characteristic | Symbol | Value (Unit) |
|---|---|---|
| Collector-Emitter Voltage | VCES | 1200V |
| Collector Current (DC) | IC | 800A |
| Max Collector Power Dissipation | PC | 4300W |
| Collector-Emitter Saturation Voltage | VCE(sat) | 2.1V (Typ.) |
| Isolation Voltage | Viso | 2500V (AC 1 min) |
| Junction Temperature Range | Tj | -40 to +150°C |
Download the CM800HA-24H datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Achieving System-Level Benefits in High-Capacity Power Conversion
The CM800HA-24H is primarily utilized in Variable Frequency Drive (VFD) systems and large-scale renewable energy inverters. Engineers often face the challenge of managing immense heat when switching currents as high as 800A. The thermal resistance of this module is specifically tuned to facilitate efficient heat transfer to the cooling medium, whether using forced air or liquid-cooled cold plates. By utilizing a single-element HA-package, designers can more easily parallel multiple units to reach higher power levels, such as those found in wind turbine converters or heavy-duty traction drives.
In a high-fidelity engineering scenario, consider a 500kW UPS system for a Tier 4 data center. The primary challenge is maintaining Safe Operating Area (SOA) compliance during sudden load steps. The CM800HA-24H provides a robust Short-Circuit Withstand Time, allowing the protection circuitry sufficient time to react, thus preventing catastrophic failure. For systems requiring slightly lower current handling in a similar footprint, the CM400HA-24H offers a 400A alternative, whereas the CM1000HA-24H provides an upgrade path for even higher current densities.
This module also excels in Welding Power Supply applications and induction heating, where repetitive thermal cycling can lead to solder fatigue. The Mitsubishi H-series construction utilizes advanced bonding techniques to enhance power cycling capability, ensuring a longer service life in harsh industrial environments. For further insights on how these components integrate into larger systems, refer to our guide on IGBT modules in high-efficiency power systems.
Industry Insights & Strategic Advantage
Strategic Reliability in the Era of Grid Modernization
As the global power infrastructure shifts toward decentralized renewable energy, the demand for high-reliability IGBT Module technology has intensified. The CM800HA-24H represents a strategic choice for manufacturers building grid-tie inverters that must comply with strict harmonic standards and availability requirements. Its 1200V rating provides a necessary safety buffer for 480V and 600V AC lines, protecting the silicon against transient overvoltage events common in industrial grids.
Think of the current flow in the CM800HA-24H like a massive municipal water main compared to a household pipe. Just as a water main must handle high pressure and volume without bursting, this module handles 800A while maintaining a low VCE(sat), which is the electrical "pressure drop" across the device. Minimizing this drop is critical for reducing waste heat. Furthermore, the industry is increasingly focused on Thermal Management as the primary bottleneck for power density. Utilizing modules with predictable thermal characteristics allows for more compact cabinet designs without compromising long-term reliability. For more information on testing these high-power components in the field, see our practical guide to IGBT testing.
Frequently Asked Questions
How does the VCE(sat) of 2.1V affect the overall efficiency of an 800A inverter?
The saturation voltage directly determines conduction losses ($P = V_{CE(sat)} times I_C$). At 800A, a typical 2.1V drop results in roughly 1.68kW of heat per module during conduction. Lowering this value is the most effective way to improve efficiency in high-duty-cycle applications.
What are the recommended Gate Drive requirements for the CM800HA-24H?
Given the high gate capacitance associated with an 800A die, a high-peak-current Gate Drive is required to ensure rapid switching and minimize Switching Loss. It is generally recommended to use a driver capable of delivering at least +/- 8A to +/- 15A peak current, depending on the desired switching speed ($dv/dt$).
Can the CM800HA-24H be used in 690V AC line applications?
Generally, 690V AC systems exhibit peak voltages and transients that exceed the 1200V rating of this module. For 690V lines, engineers typically look toward 1700V rated modules to ensure adequate voltage headroom according to standard industrial derating factors.
What is the benefit of the isolated baseplate in this HA-package?
The internal isolation allows multiple CM800HA-24H modules to be mounted on a single common heat sink without the need for external insulating pads. This reduces Thermal Resistance between the junction and the ambient air, significantly improving the cooling efficiency of the entire system.
As a specialized distributor, we provide comprehensive technical data to empower your procurement and engineering teams. For detailed integration support, consult the official Mitsubishi Electric technical manuals to ensure compliance with Safe Operating Area requirements and optimal thermal performance in your specific hardware environment.
