Content last revised on December 25, 2025
TD92N16KOF-A Infineon High-Power Thyristor/Diode Module
The TD92N16KOF-A, an Infineon (formerly Eupec) high-performance Thyristor/Diode Module, is specifically designed for high-current phase control and rectification applications. Utilizing advanced pressure contact technology, this module ensures superior thermal stability and long-term reliability in demanding industrial environments. With a Blocking Voltage of 1600V and a Mean Forward Current of 92A, it provides a robust solution for power conversion challenges. For industrial soft starters prioritizing thermal margin and structural durability, this 1600V module is the optimal choice.
Application Scenarios & Value
Achieving System-Level Benefits in Industrial Phase Control
The TD92N16KOF-A excels in high-fidelity engineering scenarios such as Soft Starters for large induction motors. In these systems, engineers face the challenge of massive inrush currents during startup. The high Surge Current rating of this module allows it to handle these transient peaks without degrading the silicon junction. By integrating the TD92N16KOF-A, designers can minimize the physical footprint of the PFC stage while maintaining high efficiency. For systems requiring slightly different current handling or terminal configurations, related models such as the SKKH106/16E or the three-phase TDB6HK95N16LOF offer alternative integration paths within the same voltage class.
Beyond motor control, this module is a staple in Industrial Rectifiers and Uninterruptible Power Supplies (UPS). In these applications, the 1600V rating provides a significant safety margin against line voltage transients in 400V or 480V three-phase systems. The pressure contact design effectively eliminates the risk of solder fatigue, which is a common failure mode in traditional power modules subject to frequent Power Cycling. This structural advantage directly translates to a lower Total Cost of Ownership (TCO) for end-users by extending the maintenance intervals of the power stack.
Key Parameter Overview
Decoding the Specs for Enhanced Thermal Reliability
| Technical Parameter | Specified Value | Engineering Significance |
|---|---|---|
| Repetitive Peak Reverse Voltage (Vrrm) | 1600V | Ensures robust performance in 400V/480V AC line applications. |
| Maximum Mean Forward Current (Itavm) | 92A (at Tc=85°C) | Defines the continuous power handling capability of the module. |
| Surge Current (Itsm) | 1500A (approx.) | Critical for surviving short-term motor startup inrush. |
| Thermal Resistance (Rthjc) | 0.37 K/W (max) | High heat dissipation efficiency through the base plate. |
| Isolation Voltage (Visol) | 3.6kV AC | Provides safe electrical separation from the heatsink. |
Download the TD92N16KOF-A datasheet for detailed specifications and performance curves.
Technical & Design Depth Analysis
A Closer Look at Pressure-Contact Design for Long-Term Reliability
The primary differentiator of the TD92N16KOF-A is its Pressure Contact Technology. To understand its value, consider a mechanical clamp versus glue; traditional modules use solder to bond the chip to the substrate, which can crack under thermal expansion. Pressure contact works like a heavy-duty mechanical clamp that remains stable even as the module heats and cools thousands of times. This eliminates solder fatigue, ensuring that the electrical and thermal contact remains consistent over the entire lifespan of the equipment.
This design is particularly vital when managing Thermal Resistance. A stable contact interface ensures that heat generated at the silicon junction is efficiently transferred to the Isolated Base Plate and then to the external heatsink. Effective Thermal Management is the cornerstone of reliability in Variable Frequency Drives (VFD). By maintaining a lower junction temperature, the TD92N16KOF-A operates further from its thermal limits, providing a buffer against unexpected environmental stressors. For further insights into component selection, refer to our Power Semiconductor Selection Guide.
Industry Insights & Strategic Advantage
Aligning Power Electronics with Sustainable Industrial Growth
In the era of Industrial 4.0 and global energy efficiency mandates, the choice of power modules like the TD92N16KOF-A carries strategic weight. As factories move toward more automated and energy-conscious motor control, the reliability of the Thyristor/Diode Module becomes a critical link in the uptime chain. High-efficiency phase control directly supports compliance with international standards such as IEC 61800-3, which regulates electromagnetic compatibility in power drive systems.
Strategic deployment of these modules also aligns with the trend of increasing power density. Because the TD92N16KOF-A offers such a high voltage and current rating in a compact 20mm module housing, engineers can design more powerful systems without increasing the cabinet size. This is essential for Renewable Energy grid-tie systems where space is at a premium. Understanding the fundamental physics behind these switches is key for any design, as detailed in our analysis of semiconductor structures and technology.
FAQ
How does the pressure contact design of the TD92N16KOF-A affect thermal cycling?
Unlike soldered modules, the pressure contact design allows internal components to expand and contract at different rates without creating stress on the electrical connections. This significantly increases the Power Cycling Capability, making the TD92N16KOF-A more reliable in applications with frequent load changes.
Can the TD92N16KOF-A be used in 690V AC line systems?
With a Vrrm of 1600V, the module is primarily optimized for 400V to 480V systems. For 690V lines, engineers typically look for modules with ratings of 2200V or higher to maintain a safe peak voltage buffer. Always verify the Safe Operating Area (SOA) relative to your specific line conditions.
What are the cooling requirements for this module at 92A continuous load?
At a continuous current of 92A, significant heat is generated. Proper Thermal Design requires a heatsink that can maintain the case temperature (Tc) below the maximum limit specified in the Infineon datasheet (typically 85°C to 100°C for rated current). Using high-quality thermal interface material is mandatory. For troubleshooting techniques, see our guide on failure analysis and reliability.
From a strategic engineering perspective, the TD92N16KOF-A represents a mature, high-reliability solution for the backbone of industrial power control. Its integration into your power stack ensures not only performance but also a resilient architecture capable of withstanding the rigors of long-term industrial operation.