SVC121D-05A Datasheet, PDF (10/10 Pages) SAMWHA ELECTRIC – SVC Varistors Type

Typical values measured at a test frequency of 1kHz
Maximum peak current through the varistor with line voltage
applied.
The maximum peak current with in the varistor voltage change
ratio of 10% with the standard 8/20 impulse current applied
two times at 5 minute interval.
Characteristics tests for Varistors are carried out by using 8/20
test impulses Data such as the maximum clamping
voltage(Vc)and the transient peak current(Itm) are obtained by
using this impulse current
However, for the Vc characteristics of the Axial Package type a
10mA DC squarewave current is used to cary out the test.
Maximum allowable energy for a single impulse of 2ms
square-wave current waveform with rated continuous voltage
applied. Maximum energy rating base on a shift of Vnom of
less than 10% of initial value.
Maximum continuous sinusoidal RMS voltage at 50/60Hz which
may be applied.
Maximum continuous DC voltage which may be applied.
This is expressed as the maximum allowable number of
impulse currents applied.
8/20 impulse current(or 2ms square wave) is applied at
prescribed interval.
This curve also provides for derating current as required with
repetitive pulsing.
Maximum average power that can be applied within the
specified ambient temperature.
SAMWHA CAPACITOR Co., Ltd.