The PTCRs are of oxide themselves,without the nickel wire weak points of oxidization caused by high temperature,nor the fragile cases of the infrared tubes,with long life.
The PTCRs are of oxide themselves,without the nickel wire weak points of oxidization caused by high temperature,nor the fragile cases of the infrared tubes,with long life.
PTC元件本身为氧化物，无镍铬丝之高温氧化弊端，也没有红外线管易碎现象，寿命长。