Content last revised on February 3, 2026
2MBI1200U4G-170 Fuji Electric High Power Dual IGBT Module
Introduction to a High-Current 1700V Platform
Engineered for high-reliability power conversion, the Fuji Electric 2MBI1200U4G-170 is a dual IGBT module designed to manage substantial power levels with efficiency and thermal stability. This module delivers a robust specification of 1700V | 1200A, underpinned by a low collector-emitter saturation voltage (VCE(sat)) of 2.57V (typ.). Key benefits include exceptional current handling and optimized thermal performance. The design directly addresses the challenge of achieving high power density in demanding industrial applications by providing a thermally efficient and high-current building block. For applications in high-power motor drives requiring maximum thermal margin, this 1700V module presents an optimal choice.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Reliability
The technical specifications of the 2MBI1200U4G-170 are tailored for high-power, high-frequency applications where thermal management is a critical design constraint. The module's performance is characterized by its ability to maintain operational stability under heavy loads, a direct result of its internal construction and choice of materials.
| Parameter | Typical Value | Conditions |
|---|---|---|
| Collector-Emitter Voltage (Vces) | 1700V | - |
| Continuous Collector Current (Ic) | 1200A | Tc = 80°C |
| Collector-Emitter Saturation Voltage (VCE(sat)) | 2.57V | Ic = 1200A, VGE = 15V, Tj = 125°C |
| Total Power Dissipation (Pc) | 6.25 kW | Per IGBT, Tc = 25°C |
| Operating Junction Temperature (Tj) | -40 to +150°C | - |
Download the 2MBI1200U4G-170 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Achieving System-Level Benefits in Megawatt-Scale Power Conversion
The 2MBI1200U4G-170 is best suited for high-power industrial systems where reliability and power density are paramount. Its 1700V rating provides a substantial safety margin for systems connected to 690V AC lines, which are common in heavy industrial equipment and renewable energy infrastructure.
A primary engineering challenge in developing megawatt-scale converters, such as those in wind turbine systems or large industrial motor drives, is managing the immense thermal load generated during operation. The 2MBI1200U4G-170's significant 1200A current capability, combined with its optimized thermal design, allows engineers to push more power through a smaller footprint. This reduces the need for complex, oversized cooling systems, directly translating to a lower bill of materials (BOM), smaller cabinet size, and simplified mechanical design. For systems requiring even higher power, designers might explore paralleling multiple modules, a strategy supported by the module's consistent electrical characteristics. In applications operating at lower voltages but requiring similar current handling, the CM600DX-24T offers a 1200V alternative.
Technical Deep Dive
A Closer Look at Thermal Design for Long-Term Reliability
A key determinant of an IGBT module's operational lifespan and reliability is its thermal resistance. The 2MBI1200U4G-170 is designed to minimize the thermal impedance from the semiconductor junction to the case, ensuring efficient heat extraction. This low thermal resistance is akin to having a wider pipe for heat to flow through; the wider the pipe, the less pressure (temperature) builds up at the source. This efficiency in heat transfer is critical for preventing the IGBT chips from exceeding their maximum operating temperature, especially during high load cycles or in environments with elevated ambient temperatures. This focus on advanced thermal management directly enhances the module's Power Cycling Capability, making it a robust component for applications with frequent start-stop or variable load profiles, such as in a Variable Frequency Drive (VFD).
Frequently Asked Questions (FAQ)
What is the primary advantage of the 1700V Vces rating?
The 1700V rating provides a significant design margin for applications on 690V AC industrial grids. This enhances system robustness and reliability against voltage transients and line fluctuations, which is a critical requirement in large-scale inverter systems and uninterruptible power supplies (UPS).
How does the 1200A current rating impact system design?
The high continuous current rating of 1200A allows for the design of high power density converters. It enables a single module to handle power levels that might otherwise require multiple smaller modules in parallel, simplifying the gate drive circuitry, busbar layout, and overall mechanical assembly, ultimately contributing to a more compact and cost-effective system.
Is this module suitable for high-frequency switching?
While primarily designed for high-power applications, the module's characteristics support efficient operation at moderate switching frequencies typical of large motor drives and grid-tie inverters. Engineers should analyze the turn-on (Eon) and turn-off (Eoff) energy specifications in the datasheet to calculate switching losses and ensure the thermal management system can dissipate the generated heat for their specific operating frequency.
Engineering Perspective
From an engineer's viewpoint, the 2MBI1200U4G-170 is a foundational component for building robust, high-power systems. Its specifications are not just numbers; they represent a capacity for reliable performance under demanding conditions. The high voltage and current ratings provide the raw capability, while the thermal efficiency ensures that this capability can be sustained over a long operational life. This makes it a strategic choice for critical infrastructure projects where long-term reliability and performance are non-negotiable.
