IPW65R080CFDAFKSA1: A High-Performance 650V 80mΩ CoolMOS™ Power Transistor
The continuous evolution of power electronics demands semiconductor devices that offer not only high efficiency and robustness but also enhanced thermal performance and switching characteristics. The IPW65R080CFDAFKSA1, a 650V-rated CoolMOS™ Power Transistor from Infineon Technologies, stands out as a premier solution in this competitive landscape. Engineered with superjunction technology, this MOSFET sets a new benchmark for high-power applications where efficiency, power density, and reliability are paramount.
With an ultra-low on-state resistance (RDS(on)) of just 80mΩ, the IPW65R080CFDAFKSA1 significantly reduces conduction losses. This allows power systems to operate at higher efficiencies, particularly in high-current scenarios. The reduced power dissipation directly translates to lower operating temperatures, enhancing the long-term reliability of the end application. The 650V voltage rating provides ample headroom for off-line SMPS (Switched-Mode Power Supplies) and other circuits operating from universal input voltages, including those with high-voltage transients or spikes.
Another critical advantage of this transistor is its exceptional switching performance. The device features low gate charge (Qg) and low output capacitance (Coss), which minimizes switching losses and enables higher switching frequencies. This is particularly beneficial for applications aiming to reduce the size of magnetic components and capacitors, thereby increasing overall power density. The fast switching capability also makes it suitable for resonant topologies such as LLC converters, where zero-voltage switching (ZVS) can be achieved more efficiently.
Thermal management is a key consideration in power design, and the IPW65R080CFDAFKSA1 excels in this aspect due to its low thermal resistance and high durability. The package is designed to optimize heat dissipation, ensuring stable operation even under demanding conditions. Furthermore, the device offers strong avalanche ruggedness and is designed to withstand high energy pulses, which enhances system robustness in fault conditions.
This CoolMOS™ transistor is ideal for a wide range of applications, including:
- Server and telecom power supplies
- Industrial motor drives and inverters

- Solar inverters and energy storage systems
- High-performance chargers and adapters
- Lighting solutions
ICGOOODFIND: The IPW65R080CFDAFKSA1 represents a significant advancement in high-voltage power MOSFET technology, combining ultra-low conduction loss, fast switching, and excellent thermal performance. It is an optimal choice for designers seeking to push the boundaries of efficiency and power density in modern electronic systems.
Keywords:
CoolMOS™,
Superjunction Technology,
Low RDS(on),
High Switching Performance,
650V Rating.
