ASMDJ26CA is a 42.1V 28.9V 26V SMDJ TVS (Transient Voltage Suppressors) diode, manufactured by Polytronics Technology Co., Ltd., and is designed for circuit protection applications. It is RoHS (Restriction of Hazardous Substances) compliant, and offers over-voltage protection for both AC and DC lines. It has a high surge energy capability of up to 330mJ, and is ideal for data communication applications requiring reliable transient protection.