CRRC Corporation Limited IGBT Modules

CRRC offers three main voltage series: 3300V Series for high-voltage applications like railway traction and HVDC transmission with current ratings up to 1200A

1700V Series for medium-voltage industrial and renewable energy applications with current ratings up to 600A

1200V Series for standard industrial applications like motor drives and UPS with current ratings up to 300A. The voltage rating should be selected based on your DC bus voltage with 1.5-2x safety margin.

Select the voltage series based on your application's DC bus voltage and power requirements.

CRRC IGBT modules for railway applications feature: High voltage ratings (3300V) suitable for 25kV AC traction systems

High current capability (800A-1200A) for high-power traction inverters

Excellent thermal performance with low thermal resistance

Wide operating temperature range (-40°C to +125°C)

High reliability for continuous operation

Compliance with railway standards (EN 50155, IEC 61287)

Robust packaging to withstand vibration and shock.

CRRC IGBT modules are specifically designed for demanding railway applications.

To determine the required current rating: Calculate the RMS current based on your load power and voltage

Add overload margin (typically 150% for 1 minute)

Apply temperature derating factor for high ambient temperatures

Include safety margin (30-50%) for reliable operation

Consider switching frequency impact on current capability. For example, a 500kW traction inverter at 1500V DC would require approximately 400A RMS current, suggesting a 600A or 800A module with appropriate margin.

Contact our FAE team for detailed current rating calculations for your specific application.

Thermal management requirements depend on power dissipation: Calculate total losses (conduction + switching) under worst-case conditions

Determine required thermal resistance: Rth(j-a) = (Tj_max - Ta) / P_loss

Select heatsink with adequate thermal performance considering airflow

Use high-quality thermal interface material (thermal grease or phase change)

Ensure proper mounting torque for good thermal contact

Consider liquid cooling for high-power applications (>500kW). Typical junction-to-case thermal resistance is 0.08-0.15 K/W depending on module size.

Refer to our thermal management application note or contact FAE for thermal design support.

Yes, CRRC IGBT modules can be paralleled for higher current applications. Key considerations for parallel operation: Use modules from the same production batch for matched characteristics

Implement symmetrical layout with equal busbar inductance

Use common emitter configuration with individual gate resistors

Consider active current balancing for high-power applications

Monitor current sharing during commissioning. Parallel operation is commonly used in high-power traction inverters and renewable energy converters.

Contact our FAE team for detailed guidelines on parallel IGBT module design.