G
Series
Metal Oxide
Varistor
General Purpose
UL 1414 and 1449
Approved
CSA 097864
Approved
85 C Maximum
Temperature
Actual
Size
The G series is the standard metal oxide varistor series from UCC/NCC. These MOVs are available in
a wide variety of voltages and sizes, which will make them ideal in most applications where a surge
protector is needed. The G series is also ideal because of the variety of UL and CSA approvals. The
varistors with a 5mm or 7.5mm lead spacing are available with ammo pack taping.
Refer to the Mini -Glossary at the end of the metal oxide varistors section for additional technical
information and specifications.
Summary of Specifications
Radial lead terminals.
Operating temperature range: 40 C to 85 C.
Maximum voltage range: 8 to 625VAC or 12 to 825VDC.
Standard varistor voltage tolerance: 10%
Maximum energy: 0.4 to 230 J depending on case size.
Maximum surge current: 100 to 6,500A.
Maximum case size (D H T ): 8.0 11.0 5.0mm to 25.0
METAL OXIDE VARISTOR
28.0 9.5mm.
G
122
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
G Series
G Specifications
Item
Operating Temperature Range
Storage Temperature Range
Maximum Voltage Range
Varistor Voltage
Varistor Voltage Tolerance
Maximum Energy
Maximum Surge Current
Maximum Case Size ( D H T )
Agency Approvals
40 to
85 C
Characteristics
50 to 125 C
8 to 625VAC or 12 to 825VDC
22 to 470V at 0.1mA DC for
Ø
7mm; 15 to 1,000V at 1mA DC for
Ø
9mm to
Ø
23mm.
10% ( K )
0.4 to 230 Joules at 2ms
100 to 6,500A at 8 /20 s
8.0 11.0
5.0mm to 25.0 28.0 9.5mm
UL1414 and 1449; CSA 097864
Diagram of Dimensions
Metal Oxide Varistor/Radial Lead
Dimensions (mm)
Nom.
Dia.
7
mm
9
mm
Ø
D
Max.
Unit: mm and inches
Varistor
Voltage
≤
270
≥
330
≤
270
≥
330
≤
270
330-680
≥
820
≤
270
330-680
≥
820
≤
270
330-680
≥
820
Ø
D
max.
H
max.
11
11
13
13
16.5
17
17
19
20
20
27
28
28
T
max.
5
7
5
7
5
7.5
9
5
7.5
9
5
8
9.5
L
min.
25
25
25
25
25
25
25
25
25
25
25
25
25
Ø
d
0.05
0.6
0.6
0.6
0.6
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
0.8
F
1.0
5
5
5
5
7.5
7.5
7.5
7.5
7.5
7.5
10
10
10
T
Max.
12
mm
15
mm
H
Max.
23
mm
8
8
10
10
13.5
14
14
16
17
17
24
25
25
Dimensions (inches)
L
Min.
Nom.
Dia.
Ø
d
7
mm
9
mm
Varistor
Voltage
≤
270
≥
330
≤
270
≥
330
≤
270
330-680
≥
820
≤
270
330-680
≥
820
≤
270
330-680
≥
820
Ø
D
max.
H
max.
0.433
0.433
0.512
0.512
0.650
0.669
0.669
0.748
0.787
0.787
1.063
1.102
1.102
T
max.
0.197
0.276
0.197
0.276
0.197
0.295
0.354
0.197
0.295
0.354
0.197
0.315
0.374
L
min.
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
0.984
Ø
d
0.002
F
0.039
0.197
0.197
0.197
0.197
0.295
0.295
0.295
0.295
0.295
0.295
0.394
0.394
0.394
F
12
mm
15
mm
23
mm
0.315
0.315
0.394
0.394
0.531
0.551
0.551
0.630
0.669
0.669
0.945
0.984
0.984
0.024
0.024
0.024
0.024
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
0.031
Part Numbering System for G Series
TNR
9
G
271
K
When ordering, always specify complete catalog number for G Series.
METAL OXIDE VARISTOR
Varistor Voltage Tolerance: K =
10%
Nominal Varistor Voltage: Expressed in volts. The first two digits are
significant figures, and the third digit indicates the number of zeros
following these figures ( e.g. 270 = 27 V; 271 = 270V ).
Series Name: Indicates Basic Varistor Style.
Nominal Case Diameter: 7 =
Ø
7mm; 9 =
Ø
9mm; 12 =
Ø
12mm;
15 =
Ø
15mm; 23 =
Ø
23mm.
TNR: Alpha Prefix for Varistors.
G
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
123
G Series
Varistor Volt - Ampere and Pulse Lifetime Characteristics
V- I Curve
- 7mm Nominal Diameter
TNR7G220K~TNR7G680K
Max. L. C.
Voltage (V)
500
400
300
200
150
100
70
60
50
40
30
20
15
10
7
6
5
4
3
10
7
Pulse Lifetime Ratings
-7mm Nominal Diameter
at +20°C
TNR7G220K~TNR7G680K
Peak Pulse Current (A)
500
300
200
100
70
50
30
20
10
7
5
3
2
1 Time
2
10
1
10
2
10
3
10
4
10
5
10
6
Test Condition Interval:
1~10
1
times: 2 min.
10
2
~10
6
times: 10 sec.
Max. Clamping Voltage
7G680K
7G560K
7G470K
7G390K
7G330K
7G270K
7G220K
60A Max.
1
0.7
0.5
0.3
0.2
0.1
10
3
20
100
200
1k
2k
10k
10
6
10
5
10
4
10
3
10
2
10
1
10
0
10
1
10
2
Direct Current (A)
8/20
µsec.
Impulse Current (A)
Impulse Duration (µs)
V- I Curve
- 7mm Nominal Diameter
TNR7G820K~TNR7G471K
Max. L. C.
Voltage (V)
2000
1500
1000
800
700
600
500
400
300
200
150
100
80
70
60
50
40
30
10
7
Pulse Lifetime Ratings
-7mm Nominal Diameter
at +20°C
TNR7G820K~TNR7G471K
Peak Pulse Current (A)
1000
700
500
300
200
100
70
50
30
20
10
7
5
3
2
1
0.7
0.5
0.3
0.2
Max. Clamping Voltage
Test Condition Interval:
1~10
1
times: 2 min.
10
2
~10
6
times: 10 sec.
1 Time
2
10
1
10
2
10
3
10
4
10
5
10
6
7G471K
7G431K
7G391K
7G331K
7G271K
7G241K
7G221K
7G201K
7G181K
7G151K
7G121K
7G101K
7G820K
10
6
10
5
10
4
10
3
10
2
10
1
10
0
10
1
10
2
250A Max.
10
3
20
100
200
1k
2k
10k
Direct Current (A)
8/20
µsec.
Impulse Current (A)
Impulse Duration (µs)
METAL OXIDE VARISTOR
G
126
United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com
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