PTC product application

PTC devices can be connected in series between the power supply and the load, acting as a resettable fuse, as shown in the following figure. Under normal working conditions, the resistance value of PTC devices remains constant when

NTC product application

Represented by the principle of lithium battery charging protection, when the temperature of the battery rises, the temperature of the NTC thermistor will also rise, causing the resistance value to decrease. The change in resistance value causes a change in voltage