Content last revised on February 16, 2026
Fuji Electric 2MBI400VE-170-50: Elevating Efficiency in 1700V High-Power Systems
The 2MBI400VE-170-50, a high-performance IGBT Module from Fuji Electric, is designed to optimize power density in 1700V applications through superior high-frequency switching and enhanced thermal stability. Providing a robust 400A collector current rating, this dual-pack module addresses the critical engineering challenge of minimizing switching losses in high-voltage environments without compromising on ruggedness. This module is primarily utilized in systems where thermal margins are tight and reliability is paramount, such as in wind power inverters and large-scale industrial motor drives.
1700V | 400A | Vce(sat) 2.30V (typ.)
Key benefits include significantly reduced turn-off energy (Eoff) and a high short-circuit withstand time, facilitating safer operation under fault conditions. For engineers prioritizing long-term reliability in 690V AC line applications, the 2MBI400VE-170-50 offers the necessary voltage overhead to manage transient surges effectively.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Reliability
The following table summarizes the absolute maximum ratings and essential electrical characteristics for the 2MBI400VE-170-50. These figures are crucial for calculating the safe operating area (SOA) and selecting appropriate cooling solutions.
| Characteristic | Symbol | Value (Units) | Engineering Impact |
|---|---|---|---|
| Collector-Emitter Voltage | Vces | 1700V | High safety margin for 690V systems |
| Collector Current (DC) | Ic | 400A | Supports high-power industrial loads |
| Saturation Voltage (Tj=125°C) | Vce(sat) | 2.70V | Determines conduction loss at peak load |
| Operating Junction Temp. | Tj | -40 to +150°C | Flexibility in harsh thermal environments |
| Isolation Voltage | Viso | 3400V AC | Ensures safety and standard compliance |
Download the 2MBI400VE-170-50 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Maximizing Performance in High-Voltage Renewable and Industrial Systems
Engineers often face the dilemma of choosing between switching speed and durability. For Variable Frequency Drives (VFD) operating on industrial grids, the 2MBI400VE-170-50 provides an ideal balance. Its 1700V rating is specifically tailored for 690V AC inputs, where 1200V modules often lack sufficient headroom for voltage spikes caused by parasitic inductance.
In the renewable energy sector, specifically wind-to-grid conversion, the module’s low Eoff translates directly to higher efficiency at the system level. By reducing heat generation during the switching phase, designers can often specify smaller heat sinks or reduce airflow requirements, leading to a lower Total Cost of Ownership (TCO). For systems requiring even higher power handling in similar topologies, the 2MBI600VE-120-50 provides a 1200V alternative with 600A capacity.
Technical Deep Dive
Engineering Insights into the VE-Series Switching Dynamics
The 2MBI400VE-170-50 utilizes Fuji Electric's V-series technology, which focuses on fine-tuning the trade-off between turn-on energy and recovery softness. The soft-switching characteristic is particularly valuable as it reduces Electromagnetic Interference (EMI), a common headache in dense power electronics cabinets.
To visualize the performance, consider the switching speed of the VE-series as akin to a professional sprinter’s start—explosive speed without losing balance. It minimizes the "tail current" that typically plagues high-voltage IGBTs, preventing the cumulative heat buildup that leads to thermal runaway. Furthermore, the thermal resistance (Rth(j-c)) is optimized through a specialized copper baseplate design, ensuring that heat is evacuated from the silicon dies as efficiently as possible. This structural integrity is explored further in our guide on Mastering IGBT Thermal Management.
FAQ
How does the 1700V Vces rating affect the gate drive design compared to 1200V modules?
While the gate threshold voltage remains similar, 1700V modules like the 2MBI400VE-170-50 require higher insulation coordination in the gate driver and more robust active clamping to protect against the higher dV/dt rates seen in 1700V switching environments.
What is the primary benefit of the VE-series "V-Series" chip technology?
The primary benefit is the reduction in switching losses and the improvement in Vce(sat) temperature dependency. This ensures that as the module heats up during operation, the increase in conduction losses is minimized, maintaining high efficiency across the entire load range.
Can the 2MBI400VE-170-50 be used in parallel for higher current requirements?
Yes, but successful IGBT paralleling requires careful attention to the Vce(sat) matching and symmetric busbar layout to prevent current imbalance, which could lead to premature failure of one module.
Strategically, the 2MBI400VE-170-50 represents a critical building block for the next generation of green energy infrastructure. By providing a reliable 1700V platform, Fuji Electric enables engineers to design converters that meet stringent global efficiency standards while ensuring the 20-year operational lifespan expected in heavy industrial and utility-scale installations.
