Datasheet

Item
Test Condition /Description Requirement
Maximum
Allowable Voltage
The recommended maximum sine wave voltage (RMS) or the maximum DC
voltage can be applied continuously.
Tomeet the
specified value
Varistor Voltage
The voltage between two terminals with the specified measuring current
1mA.DC applied is call Vb.
Maximum Clamping
Voltage
The maximum voltage between two terminals with
the specification standard impulse current.
Applied waveform: 8/20μs
Rated W attage
The maximum average power that can be applied within the specified
ambient temperature.
Energy
The maximum energy within the varistor voltage change of ±10% when one
impulse of 10/1000μs.or 2msec. is applied.
Withstanding Surge
Current
The maximum current within the varistor voltage change of ±10% with the
standard impulse current (8/20ȝsec.) applied one time
Varistor Voltage
Temp. Coefficient
0.05% / ℃ max
Surge Life
The change of Vb shall be measured after the impulse listed below is
applied 10,000 times continuously with the interval of ten seconds at room
temperature.
5D Series
180K to 680K 100A (8/20μs)
820K to 751K 400A (8/20μs)
7D Series
180K to 680K 250A (8/20μs)
820K to 821K 1200A (8/20μs)
10D Series
180K to 680K 500A (8/20μs)
820K to 112K 2500A (8/20μs)
14D Series
180K to 680K 1000A (8/20μs)
820K to 182K 4500A (8/20μs)
20D Series
180K to 680K 2000A (8/20μs)
820K to 182K 6500A (8/20μs)
△Vb / Vb ≤ ±10%
Vb at 20℃－ Vb at 70℃
Vb at 20℃
×
1
50
× 100(% / ℃)
1.0
0.9
0.5
0.1
0.0
20μsec
30% Max
T
I
8μsec
Radial Lead Metal Oxide Varistors
Electrical Rating
Distrelec Schweiz AG, Grabenstrasse 6, 8606 Nänikon, Switzerland, T [phone], [e-mail], distrelec.com