TiO2环形压敏电阻及其材料的主要电参数设计.pdf

35 8 Vol.35 No.8 2016 8 ELECTRONIC COMPONENTS AND MATERIALS Aug. 2016 TiO2 : TiO2 V 30 Vα 3~51 kHz C 10 nF 10mA 1 5 1.22×10 10 mA 1 mA J 10 –3 –2 –3 –2 10×10 A cm J 1 1×10 A cm J-E E 10 E 10mAE 1 E 1mA E 10 E 1 1 E 10mA E 1mA : TiO2 doi: 10.14106/ki.1001-2028.2016.08.009 TN304; TN379 A 100108-0037-04 Electric performance parameters design of TiO -based ring varistor and 2 its ceramic material ZHU Daoyun, MU Zhongfei (Experiment Teaching Department, Guangdong University of Technology, Guangzhou 510006, China) Abstract: In order to optimize the performances of the ring viristor, the performance parameters of the ceramic material were calculated based on the geometry size of TiO2 varistor and the relationship of electric performance parameters between component and ceramic material. When the component parameters are as follows: electrode voltage V10mA is less than 30 V, nonlinear coefficient α1 is in the range of 3–5 and the electric capacity C is larger than 10 nF, the material 5 –3 –2 parameters of relative dielectric constant ε is less than 1.22×10 , current density J is less than 10×10 A cm and J is r 10 1 la