Description:

The Mitsubishi CM800HB‑66H is a high‑voltage bipolar transistor (HBT) power module used in industrial power electronics for high‑current switching and efficient energy handling. Commonly installed in variable frequency drives (VFDs), inverter systems, welding equipment, and industrial power converters, it enables robust power switching and high‑speed operation. Maintenance teams, power electronics integrators, and OEMs use this module for replacements, upgrades, and custom power systems where high voltage and high current handling are required for reliable performance.

Applications:

This Mitsubishi bipolar power transistor module is used in industrial systems that require high‑power switching and voltage conversion. Typical applications include three‑phase VFDs/inverters for motor drives, high‑power welding machines, UPS systems, renewable energy inverters, and industrial power supplies where efficient switching devices reduce losses, improve performance, and support high‑load operation with thermal stability.

Technical Specifications:

• Manufacturer Part Number (MPN): CM800HB‑66H
• Product Type: High Voltage Bipolar Transistor Power Module
• Transistor Type: Bipolar power switching device
• Rated Voltage: ~600–660 V class (model series)
• Rated Current: High current handling (typically 800 A class)
• Package Type: Power module (industrial high‑power package)
• Switching Speed: Designed for high‑frequency switching
• Conduction Loss: Engineered for low conduction losses
• Mounting Type: Heatsink mountable power module
• Thermal Resistance: Low thermal resistance for high‑power dissipation
• Operating Temperature: ‑40 °C to 150 °C (junction rating)
• Storage Temperature: ‑55 °C to 175 °C
• Protection Features: Overheat/overload protection via external design

Common Replacements:

• Mitsubishi CM800HB‑66F (variant)
• Infineon FF800R06ME4 (800 A, 600 V IGBT module)
• Semikron SKM800GB066D’ee END