TSW15D MAHLE Temperature Switch, radiator fan

MAHLE's TSW15D Switch Sensor is a critical component in engine electronics, responsible for monitoring temperature levels. It is designed to be used in various applications where precise temperature control is essential. The sensor's compact size (72.0 x 35.0 x 37.0 mm) and robust construction make it an ideal choice for engineers seeking reliable performance. Dimensions are provided by the supplier and may include packaging dimensions. Temperature sensors monitor the thermal state of various vehicle systems, most commonly engine coolant, intake air, oil, and exhaust gases. These sensors utilize thermistors—semiconductors whose resistance changes predictably with temperature—to provide voltage signals to the Engine Control Unit (ECU). The ECU interprets these signals to adjust fuel delivery, ignition timing, and cooling fan operation for optimal performance and emissions control. Sensor housings are constructed of materials compatible with the monitored fluid/gas and operating temperatures, and electrical connectors are sealed for environmental protection. Modern designs increasingly incorporate digital signal processing for improved accuracy and communication via protocols like CAN.