Content last revised on August 5, 2026
FS100R12N2T4P EconoPACK™ 2 IGBT Module
The FS100R12N2T4P utilizes pre-applied thermal interface material to eliminate manual grease application and optimize thermal dissipation in industrial motor drives. This module is part of the high-performance family designed by Infineon FS100R12N2T4P.
Key Specifications: 1200V | 100A | EconoPACK™ 2 housing.
Key Benefits:
- Minimizes thermal interface resistance.
- Increases power cycling lifetime.
By replacing manual paste with a screen-printed phase-change compound, this module avoids local hot spots and pump-out failures. For 1200V industrial drives prioritizing automated assembly and high thermal reliability, the FS100R12N2T4P is the optimal choice.
Application Scenarios & Value
Optimizing Thermal Pathways in Variable-Speed Inverters
Engineers often face the challenge of manual thermal grease application, which frequently leads to uneven thickness, air bubbles, and subsequent thermal degradation. The FS100R12N2T4P resolves this by featuring factory-applied thermal interface material (TIM). This ensures a consistent, optimized layer between the copper base plate and the heatsink.
This makes it highly valuable in high-stress industrial applications. It is ideal for variable frequency drives (VFDs) and servo drive systems where rapid load fluctuations generate significant thermal cycles. The pre-applied TIM drastically reduces thermal impedance, helping to maintain a lower junction temperature and extend the module's power cycling capability.
Additionally, this sixpack module configuration is widely utilized in auxiliary inverters and active front-end rectifiers. For systems that demand even higher current handling, the related FS150R12KT4 provides a 150A rating within a similar architecture, while the FP100R12KT4 integrates a brake chopper for dynamic braking requirements.
Technical Deep Dive
Analyzing Trenchstop™ IGBT4 Switching Dynamics and TIM Integration
At the heart of the FS100R12N2T4P is Infineon's Trenchstop™ IGBT4 technology, paired with an Emitter Controlled 4 fast freewheeling diode. Unlike older planar technologies, the trench gate structure reduces the collector-emitter saturation voltage (VCE(sat)) to a typical value of only 1.75 V at Tvj = 25°C. Think of the trench gate like a multi-lane highway built vertically through the silicon; it allows a higher density of charge carriers to pass through a narrower channel, minimizing conduction losses.
What is the primary benefit of pre-applied TIM? It prevents module overheating by eliminating voids in the thermal grease layer. In traditional designs, applying thermal grease manually is like spreading butter on bread—it is virtually impossible to achieve a perfectly uniform thickness. The pre-applied TIM phase-change material liquefies at operating temperature, completely filling the microscopic cavities between the module's copper base plate and the heatsink. This optimizes the case-to-heatsink thermal resistance (RthCH) to approximately 0.085 K/W per IGBT. The module's package conforms to the industry-standard EconoPACK™ 2 housing, a widely accepted standard in the IGBT Module industry that offers high power cycling capability.
Furthermore, the FS100R12N2T4P features a positive temperature coefficient for VCE(sat), which rises to 2.10 V at 150°C. How does the positive temperature coefficient of VCE(sat) help? It enables safe paralleling by naturally balancing current across multiple devices, preventing thermal runaway. To further optimize design layouts, refer to our comprehensive guide on IGBT thermal management.
For more details on diagnosing potential wear in high-stress deployments, engineers can refer to our guide on IGBT failure analysis.
Key Parameter Overview
Correlating Electrical Specs with Long-Term System Reliability
The following table highlights the critical electrical and thermal ratings of the FS100R12N2T4P as specified in the official datasheet. These values are essential for designing reliable power converters.
| Parameter | Symbol | Value | Engineering Interpretation & Value |
|---|---|---|---|
| Collector-Emitter Voltage | VCES | 1200 V | Provides sufficient voltage headroom for standard 400V–480V AC grid applications. |
| Continuous DC Collector Current | IC nom | 100 A | Rated at TC = 95°C; ideal for driving medium-power industrial motors. |
| Repetitive Peak Collector Current | ICRM | 200 A | Handles transient overcurrent spikes during startup or sudden load changes. |
| Collector-Emitter Saturation Voltage | VCE sat | 1.75 V (typ @ 25°C) / 2.10 V (typ @ 150°C) | Low conduction losses; positive temperature coefficient enables safe paralleling. |
| Thermal Resistance (Junction-to-Case) | RthJC | 0.302 K/W (per IGBT) | High thermal conductivity via the Al2O3 substrate to minimize junction temperature rise. |
| Thermal Interface Material (TIM) | Pre-applied | Yes | Ensures consistent thermal contact and prevents grease pump-out over time. |
| Integrated Temperature Sensor | NTC | R25 = 5 kΩ | Provides real-time temperature feedback for overtemperature protection circuits. |
Download the FS100R12N2T4P datasheet for detailed specifications and performance curves.
Frequently Asked Questions
Addressing Design and Installation Inquiries for TIM Modules
How does the pre-applied thermal interface material (TIM) on the FS100R12N2T4P benefit high-volume manufacturing?
The factory-applied TIM ensures a highly reproducible, uniform layer thickness of phase-change material across the module baseplate. This eliminates manual paste application, reduces assembly time, and prevents common assembly defects like dry-out, voids, or uneven pressure, which can cause early failure.
What is the thermal resistance advantage of the FS100R12N2T4P compared to modules with manually applied thermal grease?
The pre-applied TIM optimizes thermal contact, resulting in a typical case-to-heatsink thermal resistance (RthCH) of 0.085 K/W per IGBT. Manually applied grease often contains microscopic air bubbles that raise contact resistance, whereas the phase-change material liquefies under operating temperatures to establish an optimal thermal pathway.
How does the integrated NTC thermistor in the FS100R12N2T4P protect the inverter system?
The module contains an integrated NTC thermistor with a nominal resistance of 5 kΩ at 25°C. This allows the gate driver or system controller to monitor the substrate temperature in real time, triggering automatic shutdown or derating if the temperature approaches the maximum operational limit of 150°C.
What is the significance of the positive temperature coefficient of VCE(sat) in this module?
The VCE(sat) increases from 1.75 V at 25°C to 2.10 V at 150°C. This positive coefficient means that if one IGBT starts drawing more current and heats up, its conduction resistance increases, naturally shedding current to cooler parallel devices. This prevents thermal runaway in parallel designs.
Can the pre-applied TIM be combined with additional thermal grease during heatsink mounting?
No. The pre-applied TIM is designed to be a complete thermal interface solution. Adding extra thermal grease will disrupt the optimized layer thickness and degrade thermal performance. The heatsink surface should simply be cleaned thoroughly before mounting the module.
For power electronics engineers designing next-generation motor drives or grid-connected inverters, the integration of pre-applied TIM and fast Trenchstop™ IGBT4 technology represents a major step forward. By reducing manufacturing steps and providing predictable thermal performance, the FS100R12N2T4P helps engineering teams achieve higher reliability and power density in demanding industrial environments.
