应无击穿或飞弧。

High voltage terminal: thermistor connected as an electrode, metal foil as another

electrode in two electrode applied between a frequency of 40Hz-60Hz, AC voltage and

insulation voltage of 1.4 times the provisions (AC500V) for the duration of the peak voltage,

60s + 5S, the rate of voltage should be similar to the 100V / s thermistor applied gradually,

there should be no breakdown or arcing.

B Value)

：

2950±10%

或者

公式中：

B--

在温度

在温度

B 值是材料系数或指热敏指数，B 值的大小由材料特性决定，B 值允许±5%公差范

围，影响 B 值大小的因素属材料特性；

B 值不同，残余电阻大小不同，持续工作时温升

也不同；

B 值越大，残余电阻越小，工作时温升越小。

B value is the material coefficient or thermal index, B value is decided by the size of the

material properties, allowing the + 5% tolerance range of B value, B value influence the

size of the material properties; the B values are different, the residual resistance of

different sizes, continuous working temperature rise is also different; the bigger the B

value, the residual resistance is small when the temperature rise is small.

5.1 热敏电阻的最大工作电流＞回路的工作电流

Thermistor maximum operating current> loop operating current

20D-15

Rev 2.0 :

www.leiditech.com

12.01.2019

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