Tool for testing reduction resistance of positive temperature coefficient thermistor

The utility model provides a positive temperature coefficient thermistor reduction resistance testing tool, which comprises an upper cover and a base, the top of the base is provided with a testing groove for placing a positive temperature coefficient thermistor, and the inner bottom surface of the testing groove is provided with a first spring probe electrically connected with a testing power supply. The first spring probe is in contact with an electrode plate at the bottom of the positive temperature coefficient thermistor, the upper cover blocks the inspection groove, the upper cover is provided with a second spring probe electrically connected with a test power supply, and the second spring probe extends into the inspection groove to be in contact with an electrode plate at the top of the positive temperature coefficient thermistor. And the inspection groove is filled with heat-conducting silicone grease. The device can be repeatedly used for the reduction test of different positive temperature coefficien