TYPE
CITATION
SUBJECT
GNR20D□□□
□□□K
□□□
MODEL
DATE
PAGE
2/5
QUALITY APPROVAL and STRUCTURE
REV.
Oct. 05, 2001
B01
1. QUALITY SYSTEM APPROVAL
ISO9001 Certificate of approval No.97-HOU-AQ-1382
2. SAFETY STANDARDS APPROVAL
Standard No.
File No.
180K〜680K
820K〜181K
201K〜471K
511K
561K〜821K
911K〜112K
182K
Approved
Approved
Approved
Approved
Approved
Approved
UL 1414
E181368
UL 1449
E166389
UL 497B
E187844
Approved
Approved
Approved
Approved
Approved
Approved
Approved
Approved
Approved
Approved
CUL
E166389
CSA C22.2 No.1
VDE 42000
5938
Approved
Approved
Approved
Approved
Approved
Approved
LR105317
3. STRUCTURE
NO.
3.1
3.2
3.3
3.4
ITEM
Main Material
Zinc Oxide
GNR, Part number, UL, CSA(or CUL) and VDE recognized component
mark, Date code
Without dirt and crack, marking should be clear
D(max.)
H(max.)
T(max.)
F
23.0
26.5
DESCRIPTION
Coating Material Epoxy Resin
Marking
Appearance
＊
(1)
10.0± 1.0
1.0± 0.1
25.0
3.0
3.5
Dimensions
ψd
L(min.)
k(max.)
Unit: mm
＊
(1) See Page 3, Dimensions Table
TYPE
CITATION
SUBJECT
GNR20D□□□
□□□K
□□□
MODEL
DATE
PAGE
4/5
ELECTRICAL CHARACTERISTICS
REV.
Oct. 05, 2001
B01
4. ELECTRICAL CHARACTERISTICS
N0.
4.0
ITEM
Standard
Conditions
Maximum
Allowable
Voltage
Varistor Voltage
Varistor Voltage
Temperature
Coefficient
Max. Clamping
Voltage
Rated Power
AC :
＊
(2)
Vrms
DC :
＊
(2)
V
V
1mA
:
＊
(2)
V
0
〜
−
0.05 %/℃
＊
(2)
V at
＊
(2)
A
PERFORMANCE
TEST METHODS
Unless otherwise specified, all tests are made
under environmental conditions as given below:
Temperature:
5〜35℃
Relative humidity:
45〜85 % RH
Maximum continuous sine wave(RMS) or DC
voltage which may be applied.
Voltage across the varistor measured at C
mA
DC.
V
CmA
at 85℃
－
V
CmA
at 25℃
V
CmA
at 25℃
×
1
60
×
100
4.1
4.2
4.3
4.4
4.5
＊
(2)
W
4.6
Withstanding
Surge Current
＊
(2)
A
4.7
Energy
＊
(2)
Joule
4.8
Surge Life
＊
(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 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 one impulse
current (8× 20μs) applied.
The max. current with a varistor voltage change
of less than
±
10% when two times impulse
current (8× 20μs) are applied at intervals of 5
minutes.
The max. energy absorbed with a varistor voltage
change of less than
±
10% when one impulse(10
×
1000μs) is applied.
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
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