The SMAFJ64A with TVS SMAF RoHS is a surface-mount multilayer varistor chip manufactured by Jingdao. This chip is designed to protect against electrical overstress, surge current, vibration, and ESD protection. It features a low-loss, fast response, and high stability. It is RoHS (Restriction of Hazardous Substances) compliant and is suited for high-frequency applications. The chip consists of 18 layers of ceramic material, is rated at 64V and has an impedance of 4.7V, and a dissipation of 2.2J. The chip has an operating temperature range of -40°C to +85°C.