|Standard test condition
||Environmental conditions under which every
measuring is done without doubt on the measuring results. Unless specified, the
temperature and relative humidity should be to 5 to 35 oC and 45 to 85%
||The varistor voltage is measured with an
impressed current of 1mA (exception, ø5: 0.1mA) and serves to characterize each varistor type.
||To meet the specified value
|Maximum operating voltage
||The maximum sinusoidal RMS voltage or maximum
DC voltage that can be applied continuoulsy in the specified environmental temperature
|Maximum clamping voltage
||Maximum clamping voltage is the maximum
voltage Vp between two terminals with the specified standard impulse current Ip (8 x 20µs).
|Withstanding surge current
||The maximum current within the varistor
voltage change of ±10% with the standard impulse current (8 x 20µs )applies one
or two times.
||The maximum energy within the varistor
voltage change of ± 10% when one impulse of 10/1000 µs or 2 msec is applied.
||The maximum power that can be applied within
the specified ambient temperature.
||The capacitance of varistor is the typical
value measured at 1KHz, 1Vrms max, OV bias and 20 ± 2 oC
|Temperature coefficient of varistor voltage
|Vc at 85 oC - Vc at 25 oC
| x (1/60) x 100 (%/ oC)
|Vc at 25 oC
||-0.05% / oC max.