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对V_2O_3系新型PTC热敏元件进行了实用性研究。结果表明,元件的性能指标达到:常温电阻率8.0×10~(-4)Ωcm,升阻比380倍,电阻温度系数6％/℃,额定电流密度1A/mm~2,响应时间0.5s。该元件可以用作大电流过流保护元件。
V_2O_3 series of new PTC thermistor components for practical study. The results show that the performance index of the device is as follows: the resistivity at room temperature is 8.0 × 10 -4 Ωcm, the ratio of resistance to lift is 380 times, the temperature coefficient of resistance is 6% / ℃, the rated current density is 1A / mm ~ 2 and the response time is 0.5s. This element can be used as a high current overcurrent protection element.