Fuji Electric 6MBI450VM-170-50 | Robust 1700V V-Series IGBT for High-Power Conversion
The Fuji Electric 6MBI450VM-170-50 is a high-performance 1700V, 450A six-pack IGBT module from the acclaimed V-Series. Engineered specifically for high-reliability and high-power density applications, this module provides the robustness required for next-generation power converters operating at elevated DC bus voltages. It integrates advanced silicon technology and a durable package design, making it a cornerstone component for demanding industrial and renewable energy systems.
Technical Deep Dive: The V-Series Advantage
The performance of the 6MBI450VM-170-50 is rooted in Fuji Electric's sophisticated V-Series technology. This isn't just an incremental update; it's a fundamental redesign of the silicon for superior performance.
- Advanced Trench Gate & Field-Stop (FS) Structure: At the core of this module is an optimized Trench Gate and Field-Stop IGBT chip. This combination achieves an exceptionally low collector-emitter saturation voltage (VCE(sat)). For a design engineer, this directly translates to lower conduction losses, reducing the thermal load on the heatsink and improving overall system efficiency. This is particularly critical in applications with high load currents, such as large motor drives.
- Soft & Fast Recovery Free-Wheeling Diode (FWD): The integrated FWD is engineered for soft recovery characteristics. This controlled recovery behavior significantly reduces voltage overshoot and ringing during switching transients. The primary benefit is a reduction in electromagnetic interference (EMI), which simplifies the design and cost of peripheral snubber circuits and filtering components.
- Enhanced Thermal Cycling Capability: The V-Series modules feature an improved package construction with enhanced solder and wire bonding technology. This delivers superior thermal cycling and power cycling capability, ensuring long-term operational life even in applications with frequent temperature fluctuations, a common scenario in wind to grid conversion systems.
Application Focus: Where the 6MBI450VM-170-50 Excels
The unique combination of a 1700V rating, high current handling, and robust construction makes the Fuji Electric 6MBI450VM-170-50 ideal for several high-stakes applications:
- Renewable Energy Inverters (Wind & Solar): In large-scale wind and solar power plants, operating at higher DC link voltages (e.g., 1000V to 1100V) minimizes cable losses. The 1700V blocking voltage of this module provides the necessary safety margin and reliability for these systems, ensuring maximum energy harvest and grid stability.
- Medium Voltage Drives (MVDs): For industrial motor drives in the megawatt class, this module enables the design of more efficient and compact three-phase inverters. Its low thermal resistance and high power density allow for smaller system footprints without compromising performance or reliability.
- High-Power Uninterruptible Power Supplies (UPS): In data centers and critical industrial facilities, UPS systems must be unfailingly reliable. The module's high short-circuit withstand time and robust SOA (Safe Operating Area) provide the resilience needed to handle fault conditions and ensure continuous, clean power.
Key Parameter Overview
The following table highlights the critical electrical and thermal specifications for system designers. For a comprehensive list of characteristics, please Download the Fuji Electric 6MBI450VM-170-50 Datasheet.
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage (Vces) | 1700 V |
| Continuous Collector Current (Ic) at Tc=80°C | 450 A |
| Collector-Emitter Saturation Voltage (Vce(sat)) at Ic=450A, Tj=125°C | 2.20 V (Typ.) / 2.70 V (Max.) |
| Maximum Junction Temperature (Tjmax) | 175 °C |
| Short-Circuit Withstand Time (tsc) | ≥ 10 µs |
| Package Type | MBI |
Engineer's FAQ
Here are answers to common questions our engineering team receives about this type of module.
- What is the primary benefit of a 1700V rating in a 3-phase inverter design? A 1700V rating provides a substantial safety margin for systems with a DC bus voltage up to 1200V. This is significantly higher than the ~600-800V bus typical for 1200V IGBTs. Operating at a higher voltage allows for lower current to deliver the same amount of power (P = V * I), which reduces I²R losses in cabling and busbars, leading to a more efficient overall system.
- How critical is the thermal resistance (Rth(j-c)) for my design? The thermal resistance from junction-to-case is a pivotal parameter that defines how effectively heat can be removed from the active silicon. A lower Rth(j-c), as seen in this module, means the junction temperature will be lower for a given power loss. This allows designers to either push more power through the device, reduce the size and cost of the required heatsink, or improve the system's long-term reliability by operating at a lower temperature. Understanding this is key to unlocking an IGBT's full thermal performance.
Strategic Value in Modern Power Electronics
The shift towards higher efficiency standards and increased power density is relentless. The Fuji Electric 6MBI450VM-170-50 is not merely a component; it is a strategic enabler for this transition. By facilitating the move to higher DC bus voltages, it allows engineers to build power conversion systems that are more efficient, more reliable, and more compact. Whether you are designing the next generation of wind turbines or high-power industrial machinery, leveraging the advanced capabilities of these V-Series IGBT modules offers a distinct competitive advantage. For detailed application support or to discuss your specific design challenges, please contact our technical team.
