Content last revised on February 25, 2026
Infineon FS100R12KT3 EconoPACK™ 3 IGBT Module Technical Analysis
The Infineon FS100R12KT3 represents a cornerstone in industrial power conversion, utilizing the TRENCHSTOP™ IGBT3 technology to achieve a balance between low conduction losses and high switching performance. As a sixpack configuration housed in the industry-standard EconoPACK™ 3 package, this 1200V, 100A module is engineered to address the rigorous thermal and electrical demands of modern inverter systems.
For engineers prioritizing system-level efficiency, the FS100R12KT3 offers a Unique Value Proposition by optimizing power density through its specialized Trench/Fieldstop structure, which significantly reduces the saturation voltage compared to legacy planar designs. 1200V | 100A | Ptot 500W. Enhanced thermal stability and low switching losses. This module significantly improves inverter efficiency by minimizing heat dissipation during high-frequency operation. For industrial drive designs requiring a compact, integrated 6-pack solution with precise thermal monitoring, the FS100R12KT3 is the optimal choice.
Application Scenarios & Value
Achieving System-Level Benefits in Industrial Motor Drives
Engineers often face the challenge of managing thermal overhead in compact variable frequency drives (VFDs) where space is at a premium. The FS100R12KT3 addresses this through its integrated NTC Temperature Sensor, which allows for real-time monitoring of the module’s baseplate temperature. This feature is critical for implementing predictive maintenance and ensuring the Safe Operating Area is never breached during peak load conditions, such as motor startup surges in conveyor systems.
In high-performance servo drives, the low VCE(sat) of approximately 1.70V (at 25°C) ensures that conduction losses remain manageable even at full 100A collector current. This allows for the use of smaller heatsinks, effectively reducing the total cost of ownership (TCO) for the end system. While this module is ideal for 100A rated applications, for systems requiring higher current handling, the related FS150R12KT4 offers a 150A rating in a similar footprint. Conversely, for lower power requirements, the FS75R12KT3 provides a 75A alternative.
Technical Deep Dive
Decoding the Impact of TRENCHSTOP™ 3 Technology on Power Density
The technical core of the FS100R12KT3 is the 3rd generation Trench/Fieldstop architecture. Unlike older planar IGBTs that suffer from high tail currents during turn-off, the Fieldstop layer allows for a thinner wafer design, which drastically reduces the stored charge. This leads to a substantial reduction in Switching Loss (Eoff), enabling the module to operate at higher carrier frequencies without the risk of thermal runaway. In engineering terms, this technology functions like a high-speed highway with optimized exits; the charge carriers are "swept out" of the device much faster, preventing the energy overlap that typically generates heat.
Furthermore, the EmCon High Efficiency Diode integrated into the FS100R12KT3 is tuned specifically to match the IGBT's switching characteristics. This reduces the Reverse Recovery Current (Irr), which not only lowers losses but also minimizes electromagnetic interference (EMI) in UPS and Solar Inverter applications. For a broader understanding of how these technologies fit into system design, engineers can refer to our resource on the backbone of high-efficiency power systems. Additional insights into optimizing these 1200V modules can be found in our guide on Vcesat and switching loss optimization.
Key Parameter Overview
Specifications and Engineering Value Interpretation
| Technical Metric | Value (Typical/Max) | Engineering Significance |
|---|---|---|
| Collector-Emitter Voltage (VCES) | 1200V | Suitable for 400V–480V AC line voltage systems with safety margin. |
| DC Collector Current (IC) | 100A (at TC = 80°C) | Continuous current capability for medium-power industrial loads. |
| VCE(sat) (Collector-Emitter Saturation) | 1.70V (Typical) | Lower conduction losses, leading to improved overall efficiency. |
| Total Power Dissipation (Ptot) | 500W (per IGBT) | Defines the thermal ceiling for heatsink and cooling design. |
| NTC Resistance (R25) | 5kΩ | Standardized value for integration with gate driver protection circuits. |
Download the FS100R12KT3 datasheet for detailed specifications and performance curves.
Frequently Asked Questions
How does the VCE(sat) temperature coefficient of the FS100R12KT3 affect parallel operation?
The FS100R12KT3 features a positive temperature coefficient for its saturation voltage. As the module heats up, its VCE(sat) increases slightly. This is an essential safety feature for engineers, as it naturally encourages current sharing when multiple modules or chips are paralleled, preventing one device from "hogging" current and failing due to localized overheating.
What is the primary benefit of the integrated NTC thermistor in this EconoPACK™ 3 module?
The NTC thermistor provides accurate temperature feedback from the module’s baseplate. By integrating this into the system's controller, engineers can implement derating strategies that protect the FS100R12KT3 during over-ambient temperature conditions, significantly increasing long-term system reliability in harsh industrial environments.
Can the FS100R12KT3 be used in high-frequency induction heating applications?
While the TRENCHSTOP™ IGBT3 is highly efficient, it is optimized for standard industrial switching frequencies (typically up to 20kHz). For induction heating or ultra-fast switching above 30kHz, engineers should evaluate the specific switching energy (Eon/Eoff) curves in the datasheet to ensure thermal limits are not exceeded. Detailed selection strategies can be explored in our guide on decoding IGBT datasheets.
Is the EconoPACK™ 3 package designed for vibration-prone environments?
Yes, the EconoPACK™ 3 package used for the FS100R12KT3 is recognized for its mechanical robustness. Its low-profile design and secure mounting points provide excellent resistance to mechanical stress and vibration, making it a reliable choice for motor drives located on factory floors or within heavy machinery.
As the global focus shifts toward carbon neutrality and enhanced energy efficiency, the selection of power semiconductors like the FS100R12KT3 becomes a strategic decision. This module not only meets the current requirements for industrial automation but also aligns with the evolving standards for IEC 61800-3 compliance in motor drive systems. By leveraging the proven reliability of the Infineon EconoPACK™ series, manufacturers can build robust, future-proof power stages for the next generation of industrial infrastructure.
