The 14D821KJ is a Varistor manufactured by Surging with a radial leaded package. It has the following specifications: 1.355kV rated voltage, 0.6W rated power, 240pF capacitance at 1kHz, 157J energy rating, 670V, 510V, and 820V voltage range, 4.5kA impulse current, and 7.5mm package size. Additionally, this part is compliant with ROHS directives.