The KSD.301-150/103CAB with Thermostat Switches Through Hole RoHS manufactured by Xucheng is an electronic component used for controlling temperatures. It is a type of thermostatic switch, which can be used to turn a system on or off based on a specific temperature at which it is set. It features a through-hole mounting style and is RoHS (Restriction of Hazardous Substances) compliant, which means that it meets international standards for environmental-friendly regulations of hazardous materials. It is a reliable, long-lasting electronic part designed to provide consistent performance and a safe temperature-controlled environment.