GNR07DK Datasheet, PDF (4/5 Pages) Ceramate Technical – VARISTOR

CITATION
SUBJECT
TYPE
GNR07D□□□K _MODEL
ELECTRICAL CHARACTERISTICS
DATE
REV.
PAGE 4/5
Oct. 13, 2001
B01
4. ELECTRICAL CHARACTERISTICS
N0.
ITEM
PERFORMANCE
TEST METHODS
Unless otherwise specified, all tests are made under
4.0 Standard Conditions
environmental conditions as given below:
Temperature:
5〜35℃
Relative humidity: 45〜85 % RH
4.1
Maximum Allowable
Voltage
AC : ＊(2) Vrms Maximum continuous sine wave(RMS) or DC
DC : ＊(2) V
voltage which may be applied.
4.2 Varistor Voltage
V_1mA : ＊(2) V _{Voltage across the varistor measured at CmA DC.}
4.3
Varistor Voltage
Temperature
Coefficient
0 〜 −0.05 %/℃
V_CmA at 85℃ － V_CmA at 25℃
V_CmA at 25℃
×
1
60 ^{× 100}
4.4
Max. Clamping
Voltage
＊(2) V
at ＊(2) A
Peak voltage across the varistor with a specified
peak impulse current of 8× 20μs waveform.
Maximum 50〜60Hz power which may be loaded
4.5
Rated Power
＊(2) W
for 1,000 hrs at 85± 2℃ with △V_CmA/ V_CmA ≦±
10%.
The max. current within the varistor voltage change
of less than ± 10% when impulse current (8× 20μ
4.6
Withstanding Surge
Current
＊(2) A
s) applied .
The max. current within the varistor voltage change
of less than ± 10% when impulse current (8× 20μ
s) applied two times with an interval of 5 minutes.
4.7
Energy
＊(2) Joule
The max. energy absorbed with a varistor voltage
change of less than ± 10% when one impulse(10×
1000μs) is applied.
4.8
Surge Life
＊(2) A
The max. current with a varistor voltage change of
less than ± 10% when 10,000 times impulse current
(8× 20μs) are applied at intervals of 20 seconds at
room temperature.
＊ (2) See Page 5