The TVR14561KSY Varistor Through Hole RoHS is a Surface Mount Device (SMD) manufactured by TKS. It is a 550V AC or DC, 25A Varistor with an impedance of 0.7Ohms. This part is a RoHS Compliant, low-to-medium voltage protected device that offers over-voltage protection in consumer electronics, industrial and automotive applications. This part is capable of protecting against high-energy transients from a wide range of sources such as lightning, power switching, industrial equipment, and the power line. It is designed with a low-loss NTC ceramic material for enhanced performance. The TVR14561KSY Varistor offers high surge-current handling, high EMI/RFI noise filtering, and low surge-coupled leakage current to maximize circuit performance.