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NTC Thermistors

NTC Thermistors

NTC resistors belong to the group of thermistors and are therefore used as electrical resistors. In contrast to conventional conductors, they offer lower resistance at higher temperatures compared to lower temperatures. NTC resistors are therefore used for limitation of currents of electrical devices. Before the device is switched on, they are still cold. They thus act as series resistors to limit the starting inrush currents of electrical devices and motors, and protect them against dangerously high current peaks. Once the device is in operation the NTC resistors heat up due to the passage of current, and their resistance is reduced.