Content last revised on November 22, 2025
7MBR150XNE120-50 | 1200V 150A PIM IGBT Module | Fuji Electric
Product Overview: Efficiency and Integration for Advanced Power Systems
Key Specifications and Engineering Advantages
The Fuji Electric 7MBR150XNE120-50 is a highly integrated Power Integrated Module (PIM) designed to optimize efficiency and power density in demanding power conversion applications. This module leverages Fuji's advanced 7th generation X-Series chip technology to deliver a robust, all-in-one power stage solution. Key specifications include: 1200V Collector-Emitter Voltage | 150A Collector Current | 1.55V typ. VCE(sat). The primary engineering benefits are significantly reduced conduction losses and a simplified system design architecture. By integrating a three-phase converter, inverter, and brake circuit, this 7-in-1 module directly addresses the challenge of building compact and reliable motor drives. For high-power motor drives requiring a complete and thermally efficient power stage, the 7MBR150XNE120-50 offers a strategically advantageous solution.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Performance
The technical specifications of the 7MBR150XNE120-50 are engineered to provide a balance of high performance and operational reliability. The parameters below, sourced from the official datasheet, are critical for system design and thermal modeling in applications such as servo drives and uninterruptible power supplies.
| Parameter | Symbol | Condition | Value |
|---|---|---|---|
| Collector-Emitter Voltage (Inverter) | VCES | - | 1200V |
| Collector Current (Inverter, DC) | IC | Tc = 100°C | 150A |
| Collector-Emitter Saturation Voltage (Inverter) | VCE(sat) | IC = 150A, Tj = 125°C | 1.55V (typ.) |
| Collector Power Dissipation (Inverter) | PC | 1 device | 780W |
| Repetitive Peak Reverse Voltage (Converter Diode) | VRRM | - | 1600V |
| Junction Temperature | Tj | - | 175°C |
| Isolation Voltage | Viso | AC, 1 minute | 2500Vrms |
Download the 7MBR150XNE120-50 datasheet for detailed specifications and performance curves.
Application Scenarios & Value
System-Level Benefits in Industrial Motor Control
The 7MBR150XNE120-50 is purpose-built for applications where efficiency, reliability, and space are critical design drivers. Its primary value is demonstrated in modern Variable Frequency Drives (VFDs) and AC servo drive amplifiers.
Consider the engineering challenge of designing a compact VFD for a 45-55 kW industrial motor. A key objective is to minimize the enclosure size, which is heavily dictated by the dimensions of the heatsink. The low VCE(sat) of 1.55V at a nominal 150A current directly reduces conduction losses. This reduction in wasted heat means a smaller, more cost-effective heatsink can be used while maintaining a safe operating junction temperature. This single parameter advantage translates directly into higher power density and a more competitive final product. Furthermore, the 7-in-1 PIM configuration consolidates the input rectifier, output inverter, and braking chopper into one component, drastically reducing PCB complexity, assembly time, and potential points of failure compared to a discrete solution. For systems with lower power requirements, the related 7MBR75VB120-50 offers a similar integrated topology with a 75A current rating.
Frequently Asked Questions (FAQ)
What is the primary benefit of the low VCE(sat) in the 7MBR150XNE120-50?The low collector-emitter saturation voltage (VCE(sat)) of 1.55V typ. at 150A directly minimizes power lost as heat during the on-state (conduction loss). This results in higher overall system efficiency and reduces the requirements for thermal management, allowing for smaller heatsinks and more compact system designs.
Does the 7MBR150XNE120-50 module include a built-in brake circuit?Yes. This is a 7-in-1 Power Integrated Module (PIM) that includes a full three-phase input rectifier bridge, a three-phase output inverter, and a brake chopper (IGBT plus a freewheeling diode). This high level of integration simplifies the design of motor drives that require dynamic braking capabilities.
What does the "X Series" designation signify for this Fuji Electric IGBT module?The "X Series" refers to Fuji Electric's 7th generation of IGBT chip technology. This technology is engineered to achieve an optimized trade-off between conduction losses (lower VCE(sat)) and switching losses, making it highly effective for applications like Variable Frequency Drives (VFDs) that operate across a wide range of speeds and loads.
What is the function of the integrated NTC thermistor?The built-in NTC (Negative Temperature Coefficient) thermistor provides a means for real-time temperature monitoring of the module's baseplate. This feedback is critical for implementing over-temperature protection in the control system, which helps prevent thermal damage and significantly enhances the long-term reliability of the power system.
Technical Deep Dive
An Analysis of 7th Generation X-Series Performance
The performance of the 7MBR150XNE120-50 is fundamentally rooted in the characteristics of its 7th generation "X-Series" silicon. Designing power semiconductors involves a critical trade-off: reducing on-state voltage drop (VCE(sat)) to minimize conduction losses often leads to an increase in the energy lost during turn-on and turn-off events (switching losses). The X-Series technology from Fuji Electric addresses this challenge by refining the chip structure to push this trade-off curve to a more advantageous position. This allows the module to achieve a very competitive VCE(sat) without excessively penalizing its switching speed. This optimization is crucial for motor drive applications that use Pulse Width Modulation (PWM), as it ensures high efficiency across both low-speed (conduction-loss dominant) and high-speed (switching-loss dominant) operating conditions.
Industry Insights & Strategic Advantage
Meeting Demands for Power Density and Energy Efficiency
The development of integrated power modules like the 7MBR150XNE120-50 is a direct response to key industry trends. Global initiatives for energy conservation and regulations mandating higher motor efficiency (such as IE3/IE4 standards) are compelling designers to create more efficient power conversion systems. The module's low conduction loss characteristic is a direct enabler for meeting these stringent efficiency targets. Simultaneously, there is a constant market pressure to reduce the physical footprint and cost of industrial equipment. By integrating the functionality of over a dozen discrete components into a single, thermally optimized package, this PIM provides a strategic advantage. It allows engineering teams to accelerate development cycles, simplify supply chains, and create more compact and reliable Motion Control Systems and UPS products.
Design and Application Guidance
A Strategic Approach to System Integration
Integrating the 7MBR150XNE120-50 provides a clear path to developing compact, efficient, and reliable power systems. Its 7-in-1 topology offers a significant reduction in component count and assembly complexity, which are key advantages in competitive markets. For design teams, this module represents an opportunity to shift focus from low-level component matching and layout to higher-level system performance and control logic optimization. By leveraging a pre-validated, highly integrated power stage, OEMs can accelerate time-to-market while delivering a product with superior thermal performance and a smaller physical footprint.
