Fuji 6RI75G-160 | Robust 1600V Power Integrated Module for Industrial Drives
The Fuji Electric 6RI75G-160 is an industry-proven Power Integrated Module (PIM) designed for high-reliability power conversion systems. As a six-pack IGBT module, it integrates a full three-phase inverter bridge into a single, compact package. Engineered for durability and stable performance, this module is a go-to component for engineers developing robust systems where high voltage capability is paramount.
- High Voltage Rating: With a collector-emitter voltage (VCES) of 1600V, it offers a substantial safety margin for applications running on high DC bus voltages, particularly those derived from 575V or 690V AC mains.
- Integrated Six-Pack Design: Simplifies the power stage layout by combining six IGBTs in a B6 bridge configuration. This reduces component count, minimizes stray inductance, and accelerates assembly time.
- Proven Reliability: Built with Fuji Electric's established technology, the 6RI75G-160 delivers the consistent and dependable performance required in demanding industrial environments.
- Optimized for Moderate Frequencies: Its characteristics are tailored for applications like motor control and power supplies, where extreme switching speeds are secondary to ruggedness and thermal stability.
Key Technical Specifications
This table provides a snapshot of the critical performance parameters for the Fuji 6RI75G-160. For comprehensive details and characteristic curves, you can download the full 6RI75G-160 datasheet.
| Parameter | Value |
|---|---|
| Max Collector-Emitter Voltage (VCES) | 1600V |
| Continuous Collector Current (IC) @ TC=80°C | 75A |
| Collector-Emitter Saturation Voltage (VCE(sat)) @ IC=75A | 3.5V (Max) |
| Max Power Dissipation (PC) per IGBT | 520W |
| Max Junction Temperature (Tj(max)) | 150°C |
| Thermal Resistance (Rth(j-c)) per IGBT | 0.24 °C/W |
Application Scenarios & Engineering Value
The unique combination of high voltage and an integrated topology makes the Fuji 6RI75G-160 an excellent choice for the core of many power conversion systems.
- High-Power Industrial Motor Drives: In heavy-duty applications like pumps, fans, and conveyors, this module forms the heart of a Variable Frequency Drive (VFD). The 1600V rating is ideal for 690V AC systems, providing the necessary headroom to handle voltage spikes and ensure long-term operational reliability.
- Uninterruptible Power Supplies (UPS): For commercial and industrial UPS systems, reliability is non-negotiable. The module's robust construction and stable thermal performance ensure that critical loads remain protected during power disturbances.
- General-Purpose Inverters & Power Converters: Its straightforward PIM design makes it a versatile building block for various applications, including welding power supplies and auxiliary power units where a complete three-phase bridge is needed. The integrated nature of these IGBT modules significantly streamlines the mechanical and electrical design.
Technical Deep Dive: A Philosophy of Robustness
While newer generation modules focus on minimizing VCE(sat), the 6RI75G-160 is a testament to a design philosophy prioritizing electrical ruggedness and simplicity. Its key strength lies in its ability to provide a stable, reliable power switch in challenging electrical environments.
The integrated PIM (Power Integrated Module) architecture is a significant advantage. By co-packaging the six IGBTs and their corresponding freewheeling diodes, Fuji Electric minimizes the parasitic inductances between switches that can cause voltage overshoots during fast switching events. This inherent design feature simplifies the snubber circuit requirements and improves the overall electromagnetic compatibility (EMC) of the end system.
Frequently Asked Questions (FAQ)
What is the optimal switching frequency for the 6RI75G-160?
This module is best suited for low-to-moderate frequency applications, typically in the range of 1 kHz to 8 kHz. While it can operate outside this range, its performance is optimized here. In this frequency band, the conduction losses (related to VCE(sat)) are a more significant part of the total power loss than switching losses, and the module's thermal design effectively manages this heat dissipation.
How does the PIM configuration benefit my design process?
The primary benefits are simplification and reliability. Instead of mounting and connecting six discrete IGBTs and six discrete diodes, you handle a single component. This reduces assembly time and potential points of failure. Furthermore, the layout is internally optimized for better thermal and electrical performance than a typical discrete solution, leading to a more compact and predictable power stage.
Is a negative gate voltage recommended for turn-off?
Yes, for maximum noise immunity and to prevent parasitic turn-on, applying a small negative gate voltage (e.g., -5V to -15V) during the off-state is recommended. This is standard practice for ensuring robust IGBT gate drive design, especially in noisy industrial environments. For specific gate drive parameters, it's essential to consult the official datasheet. If you have further questions on implementation, please contact our technical team for support.
