STRUCTURE OF ELECTRONIC COMPONENT

PROBLEM TO BE SOLVED: To obtain a lead-attached thermostatic resistor having a high durability, corrosion resistance and reliability by covering at least connections of anticorrosive leads and electrodes with an anticorrosive material. SOLUTION: A glass-sealed thermistor has a thermistor element 2 inserted in a glass tube 1 sealed at both ends with sealed electrodes 3A, 3B having Ni leads 5A, 5B with Ni platings 6 covering their metal portions, i.e., the outer end faces of the electrodes 3A, 3B and surfaces of the leads 5A, 5B. The sealed electrodes 3A, 3B pref. use Dumet wires but the length and diameter thereof are not limited. The glass tube 1 may use a SiO2 -PbO-K2 O glass tube, etc. The wall thickness of the tube depends on the size of the thermistor but is generally about 0.3-1.0mm and inner diameter of the tube is pref. 1-1.8 times the size of the thermistor element to be sealed.