The KSD.301-75/103PAK with Thermostat Switches Through Hole RoHS is an electronic part manufactured by Xucheng. It is a single pole, normally open push button type thermostat switch with a 75°C temperature range and a 103°C differential. It is encapsulated in a 3-pin metal glass sealed package that is environmentally friendly and RoHS compliant. It is designed for high accuracy, fast switching, and reliable performance. The over temperature protection is reliable and stable, making it suitable for applications in heating equipment, coolers, air conditioners, warming fans, household appliances, and other electric heating systems.