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                                                       1200V 800A SiC Power Module Selection Guide for EV Inverters and Energy Storage Systems

1 Introduction

With the development of 800V electric vehicle platforms, energy storage PCS, and industrial high-power inverters, 1200V SiC Power Modules have become core components for high-efficiency power electronic systems.

Compared to traditional IGBT modules, SiC MOSFETs offer:

• Higher blocking voltage

• Lower switching losses

• Higher switching frequency

• Higher power density

• Lower system cooling requirements

Major global SiC module suppliers include:

• Infineon Technologies

• ROHM Semiconductor

• Wolfspeed

• onsemi

Meanwhile, Chinese manufacturer RUILIN SEMI, responding to customer requests, has also launched a 1200V 800A SiC power module for high-power inverter systems. Performance comparison with international giants:

2 Typical Applications of 1200V SiC Modules

1200V SiC modules are primarily used in the following systems:

• EV Traction Inverter: Power requirements for 800V electric vehicle platforms typically range from 150 kW to 500 kW.

• Energy Storage PCS: Typical PCS power ratings: 250 kW, 500 kW, 1 MW.

• Industrial Motor Drive: Power range from 100 kW to 800 kW.

• Solar / Wind Inverter: High efficiency (>98%).

  
  

3 Key Selection Parameters

4 1200V SiC Module Market Comparison

Below is a comparison of current mainstream SiC modules:

It can be seen that:
800A class SiC modules are still relatively rare, belonging to high-power platform products.

5 RUILIN SEMI 1200V 800A SiC Module Overview

The RL800N1200A SiC Power Module launched by RUILIN features the following:

• High Current Capability: Rated current of 800A, suitable for heavy-duty EV, high-power PCS, and industrial inverters.

• High Efficiency: SiC MOSFET technology enables lower switching loss and higher switching frequency, achieving system efficiency of 98%+.

• High Temperature Operation: Maximum junction temperature of 175°C, providing higher reliability and simpler cooling design.

6 System Power Capability

Under 800V DC bus conditions, the approximate system power is:

Therefore, the 800A SiC module is more suitable for:

• Electric trucks

• Hydrogen trucks

• Large energy storage PCS

  
  

7 Package Structure

Common packages for 1200V SiC modules:

• Half Bridge: Advantages: flexible inverter design, easy paralleling.

• Six Pack: Advantages: compact inverter system.

RUILIN SEMI adopts a High Current HPD (HybridPACK Drive) module structure, suitable for high-power inverter design.

8 Advantages of High Current SiC Modules

High current modules offer the following benefits:

• Higher Power Density: Reduces the number of modules required.

• Lower System Cost: Reduces busbars, cooling components, and gate drivers.

• Simplified Inverter Design: More compact system.

9 Conclusion

With the development of 800V electric vehicles and energy storage systems, 1200V SiC Power Modules are becoming mainstream power devices.

Compared to traditional 600A modules:

The RUILIN SEMI RL800N1200A offers higher current capability and higher system power.

It is suitable for:

• EV traction inverters

• Energy storage PCS

• Industrial high-power drives

High-current SiC modules will become an important solution for next-generation high-power electronic systems. Richpower Technology, as its key distributor, is dedicated to promoting excellent industry products to customers, providing mature and stable products and technical solutions, creating value for both the manufacturer and the customers. If you are interested in learning more, please contact our sales staff.