47
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
Device
Type
SVC 271D-05A
SVC 271D-07A
SVC 271D-10A
SVC 271D-14A
SVC 271D-20A
5
7
10
14
20
175
225
6.0
12.0
30.0
50.0
90.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
270
247
303
475
455
455
455
455
5
10
25
50
100
150
300
600
1200
2400
120
250
500
1000
2000
110
220
450
900
1800
100
200
400
800
1600
80
170
350
700
1400
300
600
1200
270
550
1100
250
500
1000
220
450
900
220
440
880
210
420
840
180
380
750
180
350
700
150
300
600
200
400
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
5
10
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
50
100
620
595
595
595
595
675
650
650
650
650
754
710
710
710
710
810
775
775
775
775
920
920
920
1025
1025
1025
1120
1120
1120
1240
1240
1240
1290
1290
1290
1355
1355
1355
1500
1500
1500
1650
1650
1650
1815
1815
1815
2970
2970
396
429
473
517
616
682
748
825
858
902
1001
1100
1210
1980
324
351
387
423
504
558
612
675
702
738
819
900
990
1620
360
390
430
470
560
620
680
750
780
820
910
1000
1100
1800
250
600
1250
2500
4000
250
600
1250
2500
4000
250
600
1250
2500
4000
250
600
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
2500
4000
0.1
0.25
0.4
0.6
1.0
0.1
0.25
0.4
0.6
1.0
0.1
0.25
0.4
0.6
1.0
0.1
0.25
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.4
0.6
1.0
0.6
1.0
7.5
15.0
35.0
65.0
120.0
8.0
17.0
40.0
70.0
130.0
9.0
20.0
45.0
75.0
140.0
10.0
20.0
45.0
80.0
150.0
45.0
85.0
150.0
45.0
85.0
150.0
45.0
90.0
160.0
50.0
100.0
175.0
50.0
105.0
180.0
55.0
110.0
190.0
60.0
120.0
215.0
65.0
130.0
230.0
70.0
140.0
250.0
24.0
400.0
300
320
350
385
460
550
560
615
640
670
745
825
895
1465
230
250
275
300
350
385
420
460
485
510
550
625
680
1000
5
7
10
14
20
5
7
10
14
20
5
7
10
14
20
5
7
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
10
14
20
14
20
SVC 361D-05A
SVC 361D-07A
SVC 361D-10A
SVC 361D-14A
SVC 361D-20A
SVC 391D-05A
SVC 391D-07A
SVC 391D-10A
SVC 391D-14A
SVC 391D-20A
SVC 431D-05A
SVC 431D-07A
SVC 431D-10A
SVC 431D-14A
SVC 431D-20A
SVC 471D-05A
SVC 471D-07A
SVC 471D-10A
SVC 471D-14A
SVC 471D-20A
SVC 561D-10A
SVC 561D-14A
SVC 561D-20A
SVC 681D-10A
SVC 681D-14A
SVC 681D-20A
SVC 621D-10A
SVC 621D-14A
SVC 621D-20A
SVC 751D-10A
SVC 751D-14A
SVC 751D-20A
SVC 781D-10A
SVC 781D-14A
SVC 781D-20A
SVC 821D-10A
SVC 821D-14A
SVC 821D-20A
SVC 911D-10A
SVC 911D-14A
SVC 911D-20A
SVC 102D-10A
SVC 102D-14A
SVC 102D-20A
SVC 112D-10A
SVC 112D-14A
SVC 112D-20A
SVC 182D-10A
SVC 182D-14A
Dia
(mm)
Vacm
(Volts)
Vdcm
(Volts)
Wtm
(Joules)
Ptam
(Watts)
Itm
(Amps)
Vnom
(Volts)
Tolerance
Min
(Volts)
Max
(Volts)
VC
(Volts)
Ip
(Amps)
f=1kHz
(pF)
Notes :
①The waveform of the maximum DC applied voltage is flat. When a ripple
voltage as from a rectifier source is supplied make sure that the peak
voltage is kept under th Vdcm
An AC applied voltage(50/60Hz) form a since waveshape.
When the distortion in the waveform is extensive make sure that the
peak voltage is less than 2times the Vacm.
②Energy : Wtm
Transient energy ratings are given in the Wtm column of the
specifications in Joules (watt-second).
The rating is the maximum allowable energy for a single impulse of 2ms
square-waveform current with continuous voltage applied. Energy
ratings are based on a shift of Vnom of less than ±10% of initial value.
③Transient peak current (ltm)
The peak current rating. ltm. of varistor is based on an 8/20㎲ test
impulse waveshape.
√
This peak current is the maximum peak current in which the nominal
varistor voltage shift does not exceed ±10% when the test impulse is
applied twice at 5 mimutes intervals.
④Nominal varistor voltage : Vnom
Indicates the varistor terminal voltage measured with a 1mA DC applied.
-0.1mA DC in the case of the 0.5A and 05B series.
⑤Maximum clamping voltage : Vc
Indicates the peak teminal voltage measured with an 8/20㎲ impulse
current applied.
Operating ambient temperature : -40℃ to +80℃
Storage temperature : -40℃ to +125℃
UL and CSA recognized (UL 1449, UL 497B or UL 1414, CSA)
SVC varistors have been tested by Underwiter’s Laboratories, Inc. and
Canadian Standards Association
UL File No. E97754, E151195, E154171.
CSA File No. LR78923.
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