Comparative Review: 7MBR35VP120-50 vs BSM50GB120DN2 IGBT Modules – Which IGBT is Right for Your Power Electronics?

When it comes to designing high-efficiency, reliable power conversion systems, the choice of IGBT module is crucial. For industrial engineers and procurement managers, selecting between widely used modules like the 7MBR35VP120-50 by FUJI and the BSM50GB120DN2 by Infineon can have a significant impact on project success. This in-depth comparison explores their key parameters, unique advantages, and ideal applications to help you make the best decision for your system requirements.

Understanding IGBT Modules: Core Concepts and Market Demands

Insulated Gate Bipolar Transistor (IGBT) modules serve as the backbone of modern inverter systems, enabling high-efficiency switching at medium to high voltages and currents. As industrial automation, renewable energy, and servo drive solutions become more demanding, end-users require IGBTs with improved thermal management, compact footprints, and robust reliability. Both the FUJI 7MBR35VP120-50 and Infineon BSM50GB120DN2 are representative products in the 1200V IGBT market segment, but they differ in several important aspects.

Technical Specifications: Head-to-Head Parameters

¹: Exact value depends on circuit conditions.

Unique Features and Competitive Advantages

7MBR35VP120-50 (FUJI)

• Compact PIM Design: The Power Integrated Module format saves board space and simplifies assembly, optimizing for dense installations or retrofits.
• Integrated Dynamic Brake Circuit: Enhances safety for inverter and motor drive systems by efficiently dissipating regenerative energy.
• Low VCE(sat): Enables reduced switching losses and improved efficiency in continuous operations.
• Reliable PCB Mounting: Streamlines production workflows for high-mix or compact control panels.

BSM50GB120DN2 (Infineon)

• Higher Current Capability: With a 50A continuous rating, this module is a better fit for applications demanding higher output power.
• Dual/ Half-Bridge Configuration: Provides flexibility for designers targeting inverter topologies and modular drive systems.
• Superior Power Dissipation: The 400W rating ensures robust thermal handling, supporting longer duty cycles in confined spaces.
• Industry-Proven Reliability: Infineon’s modules are known for strict quality controls and are widely used in industrial power supplies and drives.

Refer to this IGBT Module application guide for more details on selection criteria.

Application Suitability: Inverter, Drive, and UPS Scenarios

Both modules are suitable for 1200V-class industrial applications, but subtle technical distinctions make them preferable in different contexts:

7MBR35VP120-50 Ideal Applications

• Motor Drive Inverters: Well-suited for AC/ DC servo drive amplifier systems where footprint and efficiency are paramount.
• Uninterruptible Power Supply (UPS): The compact design simplifies system integration for critical backup power solutions.
• Automated Process Equipment: Integration potential for PC board applications streamlines mass production setups.

BSM50GB120DN2 Ideal Applications

• High-Power Inverters: Suitable for medium-to-high current inverter systems in manufacturing or renewables.
• Industrial Power Supplies: Leverages high dissipation for sustained operation under demanding conditions.
• Servo Drives and Automation: The half-bridge format supports scalable multi-phase drive architectures.

Gain deeper insight into IGBT application strategies via our IGBT Modules Selection Guide.

Thermal Performance, Assembly Considerations, and Reliability

Both modules are rated for up to 150°C junction temperature, providing robust thermal resilience in cyclic or continuous-duty applications. The 7MBR35VP120-50’s lower rated power dissipation and PCB mounting are optimal for applications with tight thermal budgets and modular design needs. The BSM50GB120DN2, on the other hand, supports screw mounting for improved thermal interface with heatsinks, accommodating higher current loads and minimizing junction-to-case thermal resistance for heavily tasked industrial systems.

Market Trends and Supplier Insights

According to recent industry reports, the IGBT module market continues to shift toward higher density, integrated, and application-specific modules. Energy-efficient inverters, advanced automation, and renewable energy solutions all rely on the unique strengths of both FUJI and Infineon’s offerings. Ensure you evaluate not only technical fit but also supply chain resilience and lifecycle support when making a component choice. For more current market dynamics and technical analysis, visit our power electronics blog.

Conclusion: How to Choose Your Ideal IGBT Module?

In summary, the 7MBR35VP120-50 excels in compact inverter, UPS, and PCB-based drive applications, with its unique PIM format and lower VCE(sat) focusing on efficiency and board integration. The BSM50GB120DN2 stands out for higher current handling, robust half-bridge architecture, and superior power dissipation, targeting heavy-duty industrial or automation needs. Your choice should be based on balancing system requirements, thermal management, installation method, and overall reliability expectations.

For individual project consultations or a deeper dive into specific features of these or additional IGBT Modules, access our technical resources or speak to an expert today.