Content last revised on January 4, 2026
Infineon BSM50GP120 IGBT Module | Robust 1200V Six-Pack for Industrial Drives
The Infineon BSM50GP120 is a workhorse IGBT module engineered for reliability in demanding three-phase power conversion applications. As a highly integrated 6-pack IGBT module, it simplifies the design of compact and efficient inverters. The Infineon BSM50GP120 is a 1200V, 50A Six-Pack IGBT module featuring robust Non-Punch-Through (NPT) technology. Designed for low-to-medium frequency (<20kHz) industrial drives, it offers a high short-circuit capability (10µs) and low EMI, making it a drop-in solution for AC motor inverters and UPS systems.).
Technical Deep Dive: The Engineering Behind the BSM50GP120
- Non-Punch-Through (NPT) IGBT Technology: At the heart of the BSM50GP120 lies its NPT technology. Unlike more recent Field-Stop designs, NPT structures feature a wider base region, which translates to exceptional ruggedness and a superior Safe Operating Area (SOA). A key benefit is the positive temperature coefficient of its saturation voltage (Vce(sat)). This characteristic ensures natural current sharing when paralleling modules, preventing thermal runaway and enhancing system stability without complex balancing circuits. For a deeper look into the evolution of these technologies, see this IGBT technology comparison.
- Integrated, Matched Freewheeling Diodes (FWD): Each IGBT within the module is paired with a co-packaged freewheeling diode. These diodes are not generic additions; they are specifically selected for soft recovery characteristics. This minimizes voltage overshoots and reduces electromagnetic interference (EMI), simplifying the design of snubber circuits and EMI filters, ultimately lowering system cost and accelerating development time for your three-phase IGBT inverter.
Solving Real-World Challenges Across Applications
The true value of the BSM50GP120 is demonstrated in how its features address specific industry pain points:
- AC Motor Drives: In industrial automation, motor drives frequently encounter high-inrush currents and inductive load switching. The module's robust NPT design provides the durability needed to handle these stressful conditions, leading to longer operational life and reduced maintenance downtime in conveyor systems, pumps, and fans.
- Uninterruptible Power Supplies (UPS): For data centers and critical facilities, reliability is non-negotiable. The BSM50GP120's proven performance and stable thermal behavior ensure a clean and immediate power transfer during outages, safeguarding sensitive equipment from damage.
- Welding Equipment: Welding applications demand components that can withstand high-current pulses and harsh thermal cycles. This module's excellent thermal management and rugged construction make it an ideal choice for high-power welding inverters, delivering consistent output and long-term durability.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 1200 V |
| Continuous Collector Current (Ic @ 25°C) | 75 A |
| Continuous Collector Current (Ic @ 80°C) | 50 A |
| Collector-Emitter Saturation Voltage (Vce(sat) @ 50A, 25°C) | 2.5 V (Typ.) / 3.2 V (Max.) |
| Gate-Emitter Voltage (Vges) | ±20 V |
| Package Type | 34mm Standard Module |
| Datasheet | [BSM50GP120 Datasheet] |
Selection Guidance: BSM50GP120 vs. Modern Alternatives
When selecting a power module, it's crucial to match the technology to the application. While modern Trench Field-Stop (TFS) IGBTs offer lower conduction losses and higher switching speeds, the BSM50GP120 holds a distinct advantage in specific scenarios. If your primary requirements are extreme ruggedness, proven reliability for low-to-medium frequency applications (typically <20 kHz), or a cost-effective drop-in replacement for legacy systems, its NPT architecture is often the superior choice. For new designs targeting maximum efficiency at high frequencies, exploring newer generation modules might be more suitable. For a broad selection, you can explore more IGBT modules on our site.
Frequently Asked Questions (FAQ)
- Is the BSM50GP120 suitable for new high-frequency designs like solar inverters?
While reliable, its NPT technology is optimized for lower switching frequencies (under 20 kHz), where its ruggedness shines. For high-frequency applications where minimizing switching losses is critical, a module based on Trench-Stop or SiC technology would be a better fit. - How does the isolated baseplate benefit my design?
The integrated isolated baseplate simplifies thermal management by allowing the module to be mounted directly to a common heatsink without requiring additional insulating layers. This improves thermal transfer efficiency and reduces assembly complexity.
Whether you're repairing mission-critical industrial equipment or designing new systems that demand proven reliability over cutting-edge speed, the Infineon BSM50GP120 offers a balanced and robust solution. For pricing and availability, please contact us for a quote and our technical team will assist you with your project needs.
