The 10D271K varistor is a surface mount, 225V - 455V, 2.5KA type through hole, RoHS compliant component manufactured by Hongzhi. It is an electronic component used in power line conditioning and surge protection. The 10D271K is suitable for a wide range of applications such as telecommunications systems, consumer electronics, AC/DC switching power supplies, home appliances and various industrial electronic systems. It is designed to detect and dissipate high-voltage spikes on the power line, protecting both the power line itself and the connected equipment from damage resulting from excessive voltage. This device is designed with a self-healing feature, which allows the varistor to dissipate the energy and then to reset itself without any external intervention.