Thermal Reed Sensors in Automobile Temperature Sensing
Reed Switch based normally closed thermal cut-outs are useful in a wide range of automotive applications, either to take certain action like switching on a cooling circuits or to trigger dashboard indications. Due to their sharp trigger signal, such devices find applications in place of bimetallic strips, thermistors and thermostats for over-heat protection or precise temperature switching. Thermal reed sensors can be used to sense high temperatures and give an indication on the instrument panel. When the temperature reaches a high, the fan is turned on, and then turned off after a set duration. Thermal reed sensors can be designed to have temperature differentials as from 2°C to 10°C.
Applications are classified as Position Sensing, Pulse Counting, Electromagnetic or Relay, Temperature Sensing or Magnet Biasing types. This application is classified as follows and the link gives more information on best practices to help select the most suitable AT band and matching magnet.
The Reed Switches and Sensors used in such applications need to be robust, durable and efficient in meeting a high life expectancy. Our engineers work hard in life testing our products under various conditions, and our intention is to ensure end product durability and life. Although we wouldn’t want to restrict any of our products for use in only certain applications, the recommended products for use in this application are listed below.