Fuji Electric 2DI75D-100 | Robust 1000V/75A Dual IGBT Module for High-Reliability Power Conversion
The Fuji Electric 2DI75D-100 is a workhorse dual IGBT module engineered for demanding power conversion applications where reliability and thermal stability are paramount. Designed with a conservative yet highly effective approach, this module provides a dependable foundation for systems requiring robust performance over long operational lifetimes. It represents a classic solution for designers who prioritize proven technology and durability in their power stages.
Core Features at a Glance
- High Voltage and Current Rating: With a Vces of 1000V and a continuous collector current (Ic) of 75A, it is well-suited for medium-power industrial applications.
- Dual IGBT Configuration: Features two IGBTs in a half-bridge configuration, simplifying the design of inverters and choppers by reducing component count and layout complexity.
- Low Conduction Loss: The module is optimized for a low VCE(sat), ensuring high efficiency in applications with significant conduction periods.
- Robust Thermal Design: Built in a standard, industry-recognized package, it facilitates effective thermal management, a critical factor for system longevity.
- Integrated Free-Wheeling Diodes (FWD): Each IGBT is paired with a fast, soft-recovery diode, essential for handling inductive loads in motor drives and switching power supplies.
Key Electrical and Thermal Specifications
For design engineers, precise parameters are critical. The table below outlines the essential performance characteristics of the 2DI75D-100 module. For a comprehensive list of parameters and operating curves, you can download the official Fuji Electric datasheet.
| Parameter | Value |
|---|---|
| Max Collector-Emitter Voltage (Vces) | 1000V |
| Continuous Collector Current (Ic) @ Tc=80°C | 75A |
| Collector-Emitter Saturation Voltage (VCE(sat)) Typ. | 2.3V (at Ic=75A) |
| Total Power Dissipation (Pc) | 520W |
| Operating Junction Temperature (Tj) | -40°C to +150°C |
| Isolation Voltage (Viso) | 2500V (AC, 1 minute) |
Core Application Arenas for the 2DI75D-100
The robust specifications of the Fuji Electric 2DI75D-100 make it a highly suitable component for a range of established industrial systems. Its value lies in its balance of performance, cost-effectiveness, and proven reliability.
- Industrial Motor Drives: In Variable Frequency Drives (VFDs) and AC servo drives for motors up to approximately 30 kW, this module's dual configuration forms a perfect half-bridge inverter leg. Its durability ensures long service life in challenging factory environments.
- Welding Power Supplies: The high current handling and robust thermal performance are ideal for the inverter stage of welding equipment, which experiences high-current pulses and demanding duty cycles. Understanding IGBT failure modes is crucial here, and this module's design provides a solid safety margin.
- Uninterruptible Power Supplies (UPS): For commercial and industrial UPS systems, reliability is non-negotiable. The 2DI75D-100 provides the stable switching performance needed for both the inverter and rectifier stages, ensuring clean and continuous power.
Technical Deep Dive: Engineering for Durability
While newer technologies focus on extreme switching speeds, the Fuji Electric 2DI75D-100 is a testament to the power of robust design. Its strength lies in its excellent thermal characteristics and electrical ruggedness. The module's internal layout and materials are chosen to minimize Thermal Resistance (Rth) from junction-to-case. This directly translates to a lower operating junction temperature for a given load, which is the single most important factor in extending the power cycling capability and overall lifetime of the module. For engineers designing systems that must operate reliably for a decade or more, this focus on thermal management is a more critical asset than chasing the highest possible switching frequency.
Engineer's FAQ for the 2DI75D-100
To assist with your design-in process, here are answers to common engineering questions about this module.
- What are the recommended gate drive conditions?A typical gate drive voltage of +15V for turn-on and -5V to -15V for turn-off is recommended. Using a negative gate voltage is crucial to prevent parasitic turn-on, especially in half-bridge configurations with high dv/dt rates. A dedicated gate driver IC with an isolated power supply is essential for reliable operation.
- Can these modules be paralleled for higher current?Yes, but it requires careful design. To ensure proper current sharing, designers must match the VCE(sat) of the modules as closely as possible and ensure symmetrical PCB layout for the gate drive signals and power connections. Using separate gate resistors for each module is mandatory to dampen oscillations.
- How do I verify the health of a 2DI75D-100 in the field?A basic health check can be performed with a multimeter. The most common test involves checking the diode function between the collector and emitter and ensuring there are no short circuits between the gate and the other terminals. For a step-by-step procedure, consult our practical guide to testing IGBT modules.
For detailed application support or to discuss sourcing for your next project, please contact our technical team.
