The 20KPA44A is a metal-oxide varistor (MOV) from Littelfuse. It is a nonlinear, bidirectional, transient voltage surge suppression device (TVSS) designed to protect sensitive AC and DC power circuits from electrical overloads caused by power surges, lightning, and other fast transients. The 20KPA44A features a 4kA suppression rating, making it ideal for locations prone to severe lightning activity. The 20KPA44A offers a broad range of voltage suppression, making it highly suitable for high-voltage applications. The device also features very low capacitance, which helps reduce the amount of digital noise generated in circuits subjected to fast transients. In addition, its novel construction design allows for high transient protection with minimal wiring space requirements.