Content last revised on February 8, 2026
2MBI75P-140: Engineering a High-Voltage Dual IGBT Module for Industrial Reliability
Introduction to a High-Reliability Power Component
Delivering Enhanced Voltage Margins for Demanding Power Systems
The 2MBI75P-140 is a dual IGBT module from Fuji Electric's P-Series, engineered to provide robust and reliable power switching in high-voltage industrial applications. This module delivers a distinct combination of high breakdown voltage and stable thermal performance. With core specifications of 1400V and 75A, it offers key benefits including a superior safety margin in 600V-class systems and dependable operation under challenging thermal loads. For engineers designing systems for unstable power grids or applications requiring extra protection against voltage transients, the 2MBI75P-140 provides a critical layer of design robustness. For systems operating on 600-690V AC lines that prioritize long-term reliability over switching frequency, this 1400V module is a strategically sound choice.
Key Parameter Overview
Decoding the Specifications for Robust System Design
The technical specifications of the 2MBI75P-140 are foundational to its performance in high-stress environments. The parameters below highlight its capacity for high-voltage handling and thermal stability, which are critical for designing reliable power conversion systems.
| Absolute Maximum Ratings (Tc = 25°C unless otherwise specified) | |
|---|---|
| Collector-Emitter Voltage (Vces) | 1400V |
| Gate-Emitter Voltage (Vges) | ±20V |
| Continuous Collector Current (Ic) | 75A (Tc = 80°C) |
| 1ms Collector Current Pulse (Icp) | 150A |
| Max Power Dissipation (Pc) | 480W |
| Operating Junction Temperature (Tj) | +150°C |
| Electrical Characteristics | |
| Collector-Emitter Saturation Voltage (Vce(sat)) | 2.8V (typ) / 3.4V (max) at Ic = 75A |
| Thermal Resistance (Rth(j-c)) - IGBT | 0.26 °C/W |
| Thermal Resistance (Rth(j-c)) - FWD | 0.48 °C/W |
Download the 2MBI75P-140 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
Enhancing Reliability in Industrial Motor Drives and Power Conversion
The 2MBI75P-140 is optimized for applications where voltage stability and long-term reliability are paramount. Its defining feature, the 1400V collector-emitter voltage rating, makes it an excellent component for power stages in systems connected to 600V and 690V AC industrial lines.
A primary application is in Variable Frequency Drives (VFDs) used for controlling large AC motors. In industrial facilities, voltage spikes and transients on the power grid are a common cause of semiconductor failure. Standard 1200V IGBTs may offer a sufficient margin in controlled environments, but the 2MBI75P-140 provides a significantly larger safety buffer. This enhanced voltage headroom reduces the risk of avalanche breakdown, directly contributing to higher equipment uptime and lower maintenance costs. The module's robust thermal design ensures it can handle the cyclical loads typical of motor control without compromising its operational lifespan. The integration of two IGBTs and two free-wheeling diodes in a half-bridge configuration simplifies the inverter design, making it a practical solution for compact and reliable industrial inverters and high-power Uninterruptible Power Supplies (UPS). For applications demanding higher current capacity within the standard 1200V class, the 2MBI200NB-120 offers a continuous current rating of 200A.
Technical Deep Dive
The Engineering Significance of a 1400V Vces Rating
While 1200V is a common standard for industrial IGBTs, the 1400V rating of the 2MBI75P-140 is a deliberate engineering choice aimed at enhancing system ruggedness. This higher blocking voltage directly impacts design margin and reliability. Think of the Vces rating like the height of a dam. A dam built to handle a 12-meter flood level (1200V) might be adequate for most years, but a dam built to withstand 14 meters (1400V) provides critical protection against the rare but catastrophic 100-year flood event—or, in this case, severe line voltage transients. This extra 200V margin allows designers to meet safety standards like IEC 61800-5-1 with greater confidence, especially in systems where the DC bus voltage can approach the limits of 1200V devices during regenerative braking or due to grid instability. This conservative approach simplifies the design of snubber circuits and reduces the dependency on external protection components, leading to a more streamlined and inherently robust power stage.
Frequently Asked Questions
Engineering Inquiries on the 2MBI75P-140
How does the 1400V Vces rating of the 2MBI75P-140 benefit a 690V AC motor drive design?
A 690V AC line can produce a DC bus voltage of nearly 1000V after rectification. The 1400V rating provides a 40% safety margin over this nominal DC voltage, offering robust protection against transient overvoltages caused by line fluctuations or inductive load switching, thereby significantly improving the drive's long-term reliability.
What is the primary benefit of the module's P-Series design?
Fuji Electric's P-Series is known for its high reliability and ruggedness. This is achieved through established manufacturing processes and design principles focused on durability, making it a trusted choice for industrial equipment with long service life requirements where proven performance is more critical than cutting-edge switching speeds.
For further technical evaluation or to discuss how the 2MBI75P-140 can be integrated into your next project, please contact our technical sales team for assistance.
