GE Amphenol Advanced Sensors Thermistor CL-70, 16 ohm, 4 Amp, 4A 16ohms, NTC Thermistors provide inrush current suppression for sensitive electronics. Connecting a thermistor in series with the power source will limit the current surges typically created at turn on. Once the circuit is energized the resistance decrease rapidly to a very low value, power consumption can be ignored and there will be no effect on normal operating current. Using a thermistor is a most cost-effective way to curb surge current and protect sensitive electronics from damage.