G Series
Varistor Volt - Ampere and Pulse Lifetime Characteristics
V- I Curve-7mm Nominal Diameter
TNR7G220K ~TNR7G680K
Max.L. C.
500
400
300
Max. Clamping Voltage
200
150
100
70
60
50
40
30
20
15
10
7
6
5
4
3
107
106
105
Direct Current (A)
104
103
102 101
100
101
8/20 µsec. Impulse Current (A)
at +20°C
7G680K
7G560K
7G470K
7G390K
7G330K
7G270K
7G220K
102
103
Pulse Lifetime Ratings-7mm Nominal Diameter
TNR7G220K ~TNR7G680K
500
300
200
100
1 Time
70
50
2
30 101
20
102
10
7
103
5
104
105
3 106
2
Test Condition Interval:
1~101 times: 2 min.
10 2~10 6 times: 10 sec.
1
0.7
0.5
0.3
0.2
0.1
20
100 200
1k 2k
10k
Impulse Duration (µs)
V- I Curve-7mm Nominal Diameter
TNR7G820K ~TNR7G471K
2000
Max.L. C.
Max. Clamping Voltage
1500
1000
800
700
600
500
400
300
200
150
100
80
70
60
50
40
30
107
106
105
Direct Current (A)
104
103
102 101
100
101
8/20 µsec. Impulse Current (A)
at +20°C
7G471K
7G431K
7G391K
7G331K
7G271K
7G241K
7G221K
7G201K
7G181K
7G151K
7G121K
7G101K
7G820K
102
103
Pulse Lifetime Ratings-7mm Nominal Diameter
TNR7G820K ~TNR7G471K
1000
700
500
300
200
100
70
50
30
20
10
7
5
3
2
1 Time
2
101
102
103
104
105
106
Test Condition Interval:
1~101 times: 2 min.
10 2~10 6 times: 10 sec.
1
0.7
0.5
0.3
0.2
20
100 200
1k 2k
10k
Impulse Duration (µs)
126 United Chemi-Con, Inc. 9801 W. Higgins Road, Rosemont, IL 60018 Tel 847-696-2000 Fax 847-696-9278 www.chemi-con.com