2MBI200VH-120-50 Fuji Electric 1200V 200A IGBT Module

Content last revised on August 1, 2026

Fuji Electric 2MBI200VH-120-50 V-Series IGBT Module

The Fuji Electric 2MBI200VH-120-50 is a dual-pack power semiconductor module rated at 1200V and 200A. Developed with V-Series trench gate technology, it delivers a low collector-emitter saturation voltage (VCE(sat)) of 1.95V. This module provides a robust solution for demanding power conversion applications by combining high-speed switching with a low thermal resistance of 0.135 °C/W.

Application Scenarios & Value

Optimizing High-Power Inverters and Motor Drives for Thermal Footprint

For 1200V motor drives prioritizing tight thermal margins and high-speed switching, this 200A module provides the optimal balance of loss reduction. Engineers often face the critical challenge of managing transient current surges during startup in industrial conveyor systems or heavy machinery. The 2MBI200VH-120-50 addresses this by offering a pulse collector current rating of 400A and a robust reverse bias safe operating area (RBSOA). In application scenarios like Variable Frequency Drives (VFD) and AC/DC servo amplifiers, minimizing switching transients is essential for maintaining electromagnetic compatibility under gate drive and thermal management regulations. By maintaining an operating junction temperature of up to 150°C, this module prevents unexpected thermal shutdown under cyclic heavy loads.

For systems that require even higher current capability within the same voltage class, design engineers can evaluate the related 2MBI300VH-120-50, which offers a higher nominal rating of 300A. In contrast, this 200A module remains a highly efficient, cost-effective standard for mid-range industrial welding power supplies and Uninterruptible Power Supply (UPS) systems.

Technical & Design Deep Dive

Understanding Conduction and Switching Losses in High-Frequency Configurations

At the silicon level, the 2MBI200VH-120-50 utilizes Fuji Electric's V-Series trench-gate field-stop technology. This configuration behaves like a highly optimized highway: rather than forcing charge carriers through a narrow bottleneck, the trench structure allows them to flow with minimal resistance, significantly lowering the conduction loss. This is reflected in the low typical collector-emitter saturation voltage (VCE(sat)) of 1.95V at the terminals at Tj=25°C.

To conceptualize VCE(sat), think of the IGBT as a pressure-sensitive water valve. A standard planar IGBT requires significant pressure (voltage) to fully open, resulting in wasted energy (heat) at the valve. The V-Series trench structure acts like a balanced, low-friction valve that opens wider with less control effort, preserving system pressure and reducing energy wastage.

Furthermore, the thermal resistance (Rth(j-c)) of 0.135 °C/W acts as a wide thermal drain. If we compare heat generation to water entering a sink, a high thermal resistance is like a narrow drain pipe that causes heat to pool on the silicon die. A low Rth(j-c) of 0.135 °C/W behaves like a wide, unobstructed drain, allowing heat to rapidly escape to the copper baseplate and the heatsink. What is the primary benefit of its low Rth(j-c)? It minimizes thermal resistance, allowing compact heatsink designs.

For designers laying out the gate drive circuit, the internal gate resistance (Rg(int)) is 3.8 Ω. Understanding this parameter is vital for preventing parasitic turn-on and managing switching speed (ton = 0.60 µs, toff = 0.80 µs). How does the V-Series technology improve efficiency? By reducing collector-emitter saturation voltage to lower conduction losses. This balanced switching profile helps manage voltage overshoot during turn-off without requiring oversized snubber circuits.

Key Parameter Overview

Specifying Absolute Maximum Ratings and Electrical Performance

Download the 2MBI200VH-120-50 datasheet for detailed specifications and performance curves.

Frequently Asked Questions

Engineering Considerations for System Design and Layout

How does the Rth(j-c) of 0.135 °C/W impact the selection of thermal interface materials and heatsink footprint?
A low Rth(j-c) of 0.135 °C/W reduces the thermal barrier between the silicon and the baseplate. This allows engineers to use standard thermal grease rather than high-cost phase-change materials, while still keeping the junction temperature well within the safe operational limit, ultimately scaling down the required heatsink volume.

What are the benefits of the VCE(sat) terminal rating of 1.95V in high-duty cycle applications?
At 1.95V typical saturation voltage, conduction losses are minimized compared to older generation modules. In continuous-duty applications like servo drive amplifiers, this lower loss profile prevents localized thermal build-up and improves overall efficiency under full load conditions.

How does the 150°C operating junction temperature (Tjop) handle startup surges in VFD systems?
While the absolute maximum junction temperature (Tj) is 175°C, the module is rated for continuous switching up to 150°C Tjop. This 25°C buffer provides critical thermal headroom during brief, high-current startup phases of heavy motors, preventing over-temperature tripping without requiring component oversizing.

Why is the internal gate resistance rated at 3.8 Ω, and how does it affect gate drive design?
The internal gate resistance (Rg(int)) of 3.8 Ω helps damp high-frequency gate oscillations during switching. Design engineers must factor this value when choosing the external gate resistor to optimize turn-on (ton = 0.60 µs) and turn-off speeds, balancing dv/dt control with minimal switching losses.

Aligning with the global shift toward higher efficiency classes and compact industrial automation footprints, integrating high-reliability modules like the 2MBI200VH-120-50 enables long-term system stability. By focusing on thermal path optimization and minimizing conduction overheads, designers ensure their power stages comply with evolving international energy standards while maintaining a competitive total cost of ownership.