ETC SVC241D-20A

CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
SVC CHARACTERISTIC CURVES
V-Ⅰ CURVE
Small - current region of V - Ⅰ curve
Temporary power frequency over voltage capability
B TYPE
Withstand discharge impulse current characteristics (Typical)
A TYPE
Withstand discharge impulse current characteristics (Typical)
45
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
SPECIFICATION
Chip
Element
Device
Maximum ratings
Applied voltage
Size
RMS
50/60Hz
(25℃)
(25℃)
Average
Peak③
Energy②
power
current
dissipation (8/20㎲)
Dia
(mm)
V acm
(Volts)
V dcm
(Volts)
W tm
Ptam
(Joules) (Watts)
Type
DC
Itm
(Amps)
Max. clamping⑤
voltage @ test
current
(8/20㎲)
Nominal varistor④
peak voltage
Vnom
(Volts)
Tolerance
Min
(Volts)
Max
(Volts)
Typical
capacitance
Vc
(Volts)
Ip
(Amps)
f=1kHz
(pF)
40
36
36
36
36
48
43
43
43
43
1
2.5
5
10
20
1
2.5
5
10
20
1700
3500
7000
1400
28000
1200
2500
5000
11000
22000
1
2.5
5
10
20
1100
2000
4500
9000
18000
0.3
0.8
1.5
3.5
10.0
0.4
0.9
2.0
4.0
13.0
0.01
0.02
0.05
0.1
0.2
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
125
250
500
1000
2000
22
0.5
1.0
2.5
5.0
15.0
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
27
24
30
60
53
53
54
53
26
0.6
1.2
3.0
6.0
20.0
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
33
30
36
73
65
65
65
65
1
2.5
5
10
20
1000
2000
4000
8000
16000
25
31
0.8
1.5
3.5
7.0
24.0
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
39
35
43
86
77
77
77
77
1
2.5
5
10
20
800
1600
3200
6500
13000
30
38
1.0
1.8
4.5
8.5
30.0
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
47
42
52
104
93
93
93
93
1
2.5
5
10
20
700
1400
2800
5500
11000
35
45
1.0
2.2
5.5
10.5
35.0
0.01
0.02
0.05
0.1
0.2
125
250
500
1000
2000
123
110
110
110
110
1
2.5
5
10
20
600
1300
2500
5000
10000
40
56
50
65
1.2
2.5
6.5
12.0
40.0
1.7
3.5
8.0
14.0
27.0
0.01
0.02
0.05
0.1
0.2
0.1
0.25
0.4
0.6
1.0
125
250
500
1000
2000
250
600
1250
2500
4000
150
135
135
135
135
145
135
135
135
135
1
2.5
5
10
20
5
10
25
50
100
500
1000
2000
4000
8000
400
800
1500
3000
6000
60
85
2.0
4.0
10.0
18.0
30.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
75
100
2.5
5.0
12.0
20.0
40.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
120
95
125
3.0
6.0
16.0
25.0
50.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
150
170
4.0
10.0
20.0
35.0
70.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
140
180
4.5
10.0
23.0
40.0
75.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
220
150
200
5.0
10.0
25.0
40.0
80.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
240
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
180D-05B
180D-07B
180D-10B
180D-14B
180D-20B
220D-05B
220D-07B
220D-10B
220D-14B
220D-20B
5
7
10
14
20
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
270D-05B
270D-07B
270D-10B
270D-14B
270D-20B
5
7
10
14
20
17
SVC
SVC
SVC
SVC
SVC
330D-05B
330D-07B
330D-10B
330D-14B
330D-20B
5
7
10
14
20
20
SVC
SVC
SVC
SVC
SVC
390D-05B
390D-07B
390D-10B
390D-14B
390D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
470D-05B
470D-07B
470D-10B
470D-14B
470D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
560D-05B
560D-07B
560D-10B
560D-14B
560D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
680D-05B
680D-07B
680D-10B
680D-14B
680D-20B
820D-05B
820D-07B
820D-10B
820D-14B
820D-20B
5
7
10
14
20
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
101D-05B
101D-07B
101D-10B
101D-14B
101D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
121D-05B
121D-07B
121D-10B
121D-14B
121D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
151D-05B
151D-07B
151D-10B
151D-14B
151D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
201D-05B
201D-07B
201D-10B
201D-14B
201D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
221D-05B
221D-07B
221D-10B
221D-14B
221D-20B
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
241D-05B
241D-07B
241D-10B
241D-14B
241D-20B
5
7
10
14
20
46
Characteristics
Transient
11
14
14
18
130
18
16
20
22
20
24
56
50
62
68
61
75
82
74
90
100
90
110
175
165
165
165
165
5
10
25
50
100
350
700
1500
3000
6000
108
132
210
200
200
200
200
5
10
25
50
100
350
700
1300
2600
5200
135
165
260
250
250
250
250
5
10
25
50
100
250
500
1000
2000
4000
225
355
340
340
340
340
5
10
25
50
100
200
400
800
1600
3200
198
242
380
360
360
360
360
5
10
25
50
100
170
350
700
1400
2800
216
264
415
395
395
395
395
5
10
25
50
100
170
350
700
1300
2600
200
185
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
Device
Type
Dia
(mm)
SVC
SVC
SVC
SVC
SVC
271D-05A
271D-07A
271D-10A
271D-14A
271D-20A
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
361D-05A
361D-07A
361D-10A
361D-14A
361D-20A
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
391D-05A
391D-07A
391D-10A
391D-14A
391D-20A
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
431D-05A
431D-07A
431D-10A
431D-14A
431D-20A
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
471D-05A
471D-07A
471D-10A
471D-14A
471D-20A
561D-10A
561D-14A
561D-20A
621D-10A
621D-14A
621D-20A
681D-10A
681D-14A
681D-20A
751D-10A
751D-14A
751D-20A
781D-10A
781D-14A
781D-20A
821D-10A
821D-14A
821D-20A
5
7
10
14
20
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
911D-10A
911D-14A
911D-20A
102D-10A
102D-14A
102D-20A
112D-10A
112D-14A
112D-20A
182D-10A
182D-14A
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
Vacm
(Volts)
Vdcm
(Volts)
Wtm
(Joules)
Ptam
(Watts)
Itm
(Amps)
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
300
7.5
15.0
35.0
65.0
120.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
320
8.0
17.0
40.0
70.0
130.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
350
9.0
20.0
45.0
75.0
140.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
300
385
10.0
20.0
45.0
80.0
150.0
0.1
0.25
0.4
0.6
1.0
250
600
1250
2500
4000
350
460
385
550
560
460
615
485
640
510
670
550
745
625
825
680
895
1000
1465
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
1250
2500
4000
1250
2500
4000
420
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
175
230
250
275
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
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.
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
1250
2500
4000
2500
4000
Vnom
(Volts)
270
360
390
430
Tolerance
Min
Max
(Volts)
(Volts)
247
324
351
387
VC
(Volts)
Ip
(Amps)
f=1kHz
(pF)
303
475
455
455
455
455
5
10
25
50
100
150
300
600
1200
2400
396
620
595
595
595
595
5
10
25
50
100
120
250
500
1000
2000
429
675
650
650
650
650
5
10
25
50
100
110
220
450
900
1800
473
754
710
710
710
710
5
10
25
50
100
100
200
400
800
1600
810
775
775
775
775
5
10
25
50
100
80
170
350
700
1400
920
920
920
1025
1025
1025
25
50
100
25
50
100
300
600
1200
270
550
1100
1120
1120
1120
1240
1240
1240
1290
1290
1290
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
25
50
100
250
500
1000
220
450
900
220
440
880
210
420
840
180
380
750
180
350
700
150
300
600
200
400
470
423
517
560
504
616
620
558
682
680
612
748
750
675
825
780
702
858
820
738
902
910
819
1001
1000
900
1100
1100
990
1210
1800
1620
1980
1355
1355
1355
1500
1500
1500
1650
1650
1650
1815
1815
1815
2970
2970
25
50
100
50
100
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.
47
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
TYPE
DIMENSIONS (Unit : mm)
B TYPE
Tmax
Dmax
Hmax
Lmin
F
180D-05B
220D-05B
270D-05B
330D-05B
TYPE
4.5
4.5
4.5
4.5
7.5
7.5
7.5
7.5
10.0
10.0
10.0
10.0
25
25
25
25
5.0
5.0
5.0
5.0
0.55
0.55
0.55
0.55
SVC 390D-05B
SVC 470D-05B
SVC 560D-05B
SVC 680D-05B
SVC 180D-07D
SVC 220D-07D
SVC 270D-07D
SVC 330D-07D
4.5
4.5
4.5
4.5
4.5
4.5
4.5
4.5
7.5
7.5
7.5
7.5
9.0
9.0
9.0
9.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
25
25
25
25
25
25
25
25
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
SVC 390D-07D
SVC 470D-07D
SVC 560D-07D
SVC 680D-07D
SVC 180D-10B
SVC 220D-10B
SVC 270D-10B
SVC 330D-10B
4.5
4.5
4.5
4.5
5.0
5.0
5.0
5.0
9.0
9.0
9.0
9.0
13.5
13.5
13.5
13.5
10.0
10.0
10.0
10.0
16.5
16.5
16.5
16.5
25
25
25
25
25
25
25
25
5.0
5.0
5.0
5.0
7.5
7.5
7.5
7.5
0.55
0.55
0.55
0.55
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
390D-10B
470D-10B
560D-10B
680D-10B
5.0
5.0
5.0
5.0
13.5
13.5
13.5
13.5
16.5
16.5
16.5
16.5
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
180D-14B
220D-14B
270D-14B
330D-14B
5.0
5.0
5.0
5.0
17.0
17.0
17.0
17.0
20.0
20.0
20.0
20.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
390D-14B
470D-14B
560D-14B
680D-14B
180D-20B
220D-20B
270D-20B
330D-20B
5.0
5.0
5.0
5.0
6.0
6.0
6.0
6.0
17.0
17.0
17.0
17.0
23.0
23.0
23.0
23.0
20.0
20.0
20.0
20.0
27.0
27.0
27.0
27.0
25
25
25
25
30
30
30
30
7.5
7.5
7.5
7.5
10.0
10.0
10.0
10.0
0.70
0.70
0.70
0.70
0.07
0.07
0.07
0.07
SVC
SVC
SVC
SVC
390D-20B
470D-20B
560D-20B
680D-20B
6.0
6.0
6.0
6.0
23.0
23.0
23.0
23.0
27.0
27.0
27.0
27.0
30
30
30
30
10.0
10.0
10.0
10.0
0.07
0.07
0.07
0.07
SVC
SVC
SVC
SVC
Tmax
Dmax
Hmax
Lmin
F
SVC
SVC
SVC
SVC
820D-05A
101D-05A
121D-05A
151D-05A
4.5
4.5
4.5
4.5
7.0
7.0
7.0
7.0
10.0
10.0
10.0
10.0
25
25
25
25
5.0
5.0
5.0
5.0
0.55
0.55
0.55
0.55
SVC
SVC
SVC
SVC
201D-05A
221D-05A
241D-05A
271D-05A
4.5
4.5
4.5
4.5
7.0
7.0
7.0
7.0
10.0
10.0
10.0
10.0
25
25
25
25
5.0
5.0
5.0
5.0
0.55
0.55
0.55
0.55
SVC
SVC
SVC
SVC
361D-05A
391D-05A
431D-05A
471D-05A
5.0
5.0
6.0
6.0
7.0
7.0
7.0
7.0
10.0
10.0
10.0
10.0
25
25
25
25
5.0
5.0
5.0
5.0
0.55
0.55
0.55
0.55
48
Dmax
Hmax
Lmin
F
820D-07A
101D-07A
121D-07A
151D-07A
4.5
4.5
4.5
4.5
9.0
9.0
9.0
9.0
12.0
12.0
12.0
12.0
25
25
25
25
5.0
5.0
SVC
SVC
SVC
SVC
201D-07A
221D-07A
241D-07A
271D-07A
4.5
4.5
4.5
4.5
9.0
9.0
9.0
9.0
12.0
12.0
12.0
12.0
25
25
25
25
SVC
SVC
SVC
SVC
361D-07A
391D-07A
431D-07A
471D-07A
5.0
5.0
6.0
6.0
9.0
9.0
9.0
9.0
12.0
12.0
12.0
12.0
25
25
25
25
SVC
SVC
SVC
SVC
820D-10A
101D-10A
121D-10A
151D-10A
4.5
4.5
4.5
4.5
14.0
14.0
14.0
14.0
17.0
17.0
17.0
17.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
201D-10A
221D-10A
241D-10A
271D-10A
4.5
4.5
4.5
4.5
14.0
14.0
14.0
14.0
17.0
17.0
17.0
17.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
361D-10A
391D-10A
431D-10A
561D-10A
621D-10A
681D-10A
751D-10A
781D-10A
5.0
5.0
6.0
6.0
7.5
7.5
7.5
8.5
8.5
14.0
14.0
14.0
14.0
14.0
14.0
14.0
14.0
14.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
17.0
25
25
25
25
25
25
25
25
25
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
821D-10A
911D-10A
102D-10A
112D-10A
8.5
10.5
10.5
10.5
14.0
14.0
14.0
14.0
17.0
17.0
17.0
17.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
820D-14A
101D-14A
121D-14A
151D-14A
4.5
4.5
4.5
4.5
17.5
17.5
17.5
17.5
21.0
21.0
21.0
21.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
201D-14A
221D-14A
241D-14A
271D-14A
4.5
4.5
4.5
4.5
17.5
17.5
17.5
17.5
21.0
21.0
21.0
21.0
25
25
25
25
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
361D-14A
391D-14A
431D-14A
471D-14A
561D-14A
621D-14A
681D-14A
751D-14A
781D-14A
5.0
5.0
6.0
6.0
7.5
7.5
7.5
8.5
8.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
17.5
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
21.0
25
25
25
25
25
25
25
25
25
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
SVC
821D-14A
911D-14A
102D-14A
112D-14A
182D-14A
8.5
10.5
10.5
10.5
15.0
17.5
17.5
17.5
17.5
17.5
21.0
21.0
21.0
21.0
21.0
25
25
25
25
25
7.5
7.5
7.5
7.5
7.5
0.70
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
820D-20A
101D-20A
121D-20A
151D-20A
4.5
4.5
4.5
4.5
23.0
23.0
23.0
23.0
28.0
28.0
28.0
28.0
30
30
30
30
10.0
10.0
10.0
10.0
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
201D-20A
221D-20A
241D-20A
271D-20A
4.5
4.5
4.5
4.5
23.0
23.0
24.0
24.0
28.0
28.0
28.0
28.0
30
30
30
30
10.0
10.0
10.0
10.0
0.70
0.70
0.70
0.70
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
361D-20A
391D-20A
431D-20A
471D-20A
561D-20A
621D-20A
681D-20A
751D-20A
781D-20A
5.0
5.0
6.0
6.0
7.5
7.5
7.5
8.5
8.5
24.0
24.0
24.0
24.0
24.0
24.0
24.0
24.0
24.0
28.0
28.0
28.0
28.0
28.0
28.0
28.0
28.0
28.0
30
30
30
30
30
30
30
30
30
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
0.70
0.70
0.70
0.70
0.80
0.80
0.80
0.80
0.80
SVC
SVC
SVC
SVC
SVC
821D-20A
911D-20A
102D-20A
112D-20A
182D-20A
8.5
10.5
10.5
10.0
15.0
24.0
24.0
24.0
24.0
24.0
28.0
28.0
28.0
28.0
28.0
30
30
30
30
30
10.0
10.0
10.0
10.0
10.0
0.80
0.80
0.80
0.80
0.80
d
A TYPE
TYPE
Tmax
SVC
SVC
SVC
SVC
d
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
d
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
0.55
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
ITEM
Code
Body Diameter
D
Body thickness
T
Lead diameter
d
Pitch of sprocket hole
Dimensions(mm)
FS5, FK5
See Page 46
0.55±0.05
P0
FF9
0.70±0.05
12.7±0.3
Pitch of component
P
6.35±1.3
25.4±1.0
Lead lenth from hole center to Lead
P1
3.85±0.7
8.95±1.0
P2
6.35±1.3
12.7±1.5
F
5.0
Lead length from hole center to
component center
Lead spacing
Deviation along tape
△S
Deviation across tape
△h
Carrier tape width
+0.8
-0.2
7.5±1.0
0±1.0
0±2.0
+1.0
-0.5
W
18.0
Hold down tape width
W0
5.0min 9.0min
Position of sprocket hole
W1
9.0±0.5
Hold down tape position
W2
3.0max
Lead wire clinch height
H0
16.0±0.5
Height of component hole
H
20.0 +1.5
-1.0
Component height
H1
32.25max
Diameter of sprocket hole
D0
4.0±0.2
Length of snipped lead
L
11.0max
Total tape thickness
t1
0.7±0.2
Total thickness tape and lead wire
t2
1.5max
Length of snipped lead
lx
1.0max
ITEM
Code
Body Diameter
D
Body thickness
T
Lead diameter
d
Dimensions(mm)
FF7
FF8
See Page 46
0.70±0.05
Pitch of sprocket hole
P
Pitch of component
P
15.0±1.0
Lead lenth from hole center to Lead
P1
3.75±1.0
P2
7.50±1.5
F
7.5±1.0
Lead length from hole center to
1.7max
0
15.0±0.3
30.0±1.0
component center
Lead spacing
Deviation along tape
△S
Deviation across tape
△h
0±2.0
Carrier tape width
W
18.0 +1.0
-0.5
Hold down tape width
W0
5.0min
Position of sprocket hole
W
9.0±0.5
Hold down tape position
W2
3.0max
Lead wire clinch height
H0
16.0±0.5
Height of component hole
H
20.0
Component height
H1
40.00max
Diameter of sprocket hole
D0
4.0±0.2
Length of snipped lead
L
11.0max
Total tape thickness
t1
0.7±0.2
Total thickness tape and lead wire
t2
1.7max
Length of snipped lead
lx
1.0max
1
0±1.0
+1.5
-1.0
49
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
CHAR, CURVES AND LIFETIME
■ TRANSIENT V-I CHARACTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
05B (SVC 180D-05B to SVC680D-05B)
05B (SVC 180D-05B to SVC680D-05B)
05A (SVC 820D-05A to SVC471D-05A)
05A (SVC 820D-05A to SVC471D-05A)
50
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
07B (SVC 180D-07B to SVC680D-07B)
07B (SVC 180D-07B to SVC680D-07B)
07A (SVC 820D-07A to SVC471D-07A)
07A (SVC 820D-07A to SVC471D-07A)
51
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
10B (SVC 180D-10B to SVC680D-10B)
10B (SVC 180D-10B to SVC680D-10B)
10A (SVC 820D-10A to SVC471D-10A)
10A (SVC 820D-10A to SVC471D-10A)
52
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
10A (SVC561D-10A to SVC112D-10A)
10A (SVC 561D-10A to SVC112D-10A)
14B (SVC 180D-14B to ENC680D-14B)
14B (SVC 180D-14B to SVC680D-14B)
53
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
14A (SVC 820D-14A to SVC471D-14A)
14A (SVC 820D-14A to SVC471D-14A)
14A (SVC 561D-14A to SVC182D-14A)
14A (SVC 561D-14A to SVC182D-14A)
54
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
20B (SVC180D-20B to SVC680D-20B)
20B (SVC180D-20B to SVC680D-20B)
20A (SVC 820D-20A to SVC471D-20A)
20A (SVC 820D-20A to SVC471D-20A)
55
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ TRANSIENT V-I CHARACTERISTIC CURVES
-2
Current waveform Under 10 A : DC
-1
Over 10 A : 8/20㎲
20A (SVC 561D-20A to SVC182D-20A)
56
■ PULSE LIFETIME RATINGS
Notes : 2 - pulse : 5 - minute interval
3 to 10 - pulse : 2 -minute interval
6
Up to 10 - pulse : 10 - second intervla
20A (SVC 561D-20A to SVC182D-20A)
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
APPLICATIONS
The protection of semiconducting elements such as diodes,
thyristors, transistors, IC and relays against transient voltages.
Similar protection of many types of measuring instruments,
control machinery and communication equipment and broadcasting
equipment against inductive lightning and switching surges.
Protection of general purpose electrical equipment, domestic
mechinery and appliances. TV and radios and similar consumer
products against lightning and switching surges.
■ Telecommunication circuit protection
■ Power supply circuit protection
Line circuit
Varistor voltage selection table (ZL)
Power supply voltage
100V AC
Type
SVC201D-□□A
SVC221D-□□A
SVC241D-□□A
SVC271D-□□A
SVC391D-□□A
SVC431D-□□A
SVC471D-□□A
SVC220D-□□B
SVC390D-□□B
200V AC
12V DC
24V DC
Notes :
①The power supply voltage must not exceed the maximum
allowable circuit voltage.
②Since independent wiring loads and capacitive loads cause the
voltage build-up at the time of opening or closing the load, use SVC
having a varistor voltage as high as possible.( mark)
③The bold faced portions of the type letters vary.
AC/DC single-phase circuit
Varistor voltage selection guied
Power supply voltage
12V DC
24V AC
Type
SVC180D-□□B
SVC220D-□□B
SVC820D-□□A
SVC390D-□□B
SVC820D-□□A
Notes :
The varistor SVC has a capacitance value. Take not of this when
applying them to high-frequency signal circuits.
■ Switching circuit protection
Protection of relay
(Contact coil)
Protection of
semiconductors
AC three-phase circuit
Line and groud circuit
Varistor voltage selection table (ZE)
Power supply voltage
100V AC
200V AC
Type
SVC431D-□□A
SVC471D-□□A
SVC751D-□□A to SVC 112D-□□A
SVC182D-□□A
Notes :
①When subjected to megger testing (500V DC), the insulation
resistance value can decrease due to the leakage current of the
SVC, To avoid this remove the varistor or use marked SVC.
②When subjected to dielectric strength test(1000V AC). remove the
SVC or use marked SVC.
Select varistors taking a note of operating conditions peculiar to the
equipment.
AC/DC single-phase circuit
AC three-phase circuit
Varistor voltage selection guide
Power supply voltage
12V DC
24V DC
100V DC
100V AC
Type
SVC220D-□□B
SVC390D-□□B
SVC151D-□□A
SVC201D-□□A
SVC221D-□□A
SVC241D-□□A
SVC271D-□□A
Notes :
①The power supply voltage must not exceed the maximum
allowable circuit voltage of the SVC
②Pay due attention to the surge energy generated by the load.
③Select SVC referring to the pulse lifetime rating.
④To further reduce the tendency of sparking across the contacts
connect a capacitor parallel with the SVC. This will also protect the
equipment from electromagnetic wave jamming.
57
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
■ Application notes
1. Overcurrent protection
2.Installation
When surges exceed the rating for the SVC, short-circuits or
damages can be expected. Take following precautions.
① When operated at location near heating element or exposed to direct sun light, confirm that the the ambient
temparature range.
② When operated in dusty or dirty locations, or exposed to
corrosive atomospheres, or where metallic powders or salt
can be expected, be sure to mount within a protective enclosure.
3. Molding
When shielding the SVC in a resin molding, take a note of the
materials used and temperature, since they influence the
reliability. For further information please contact SAMWHA
4.Current, power and energy rating vs, temperature
① Connect the SVC at a position nearer to the equipment
than the overcurrent protection device“Ⅰ”(fuse, MCCB) as is
shown in the diagram.
When the SVC is shorted, the overcurrent protection device
“Ⅰ”operates (trips or blow off the fuse).
② If the overcurrent protection device“Ⅰ”can not be installed in“Ⅰ”position, connect a fuse at“Ⅱ”position. Select
fuse rated current for the SVC referring to the following table.
05A
05B
SVC
Applicable fuse
1 to 2
rated current(A)
07A
07B
10A
10B
14A
14B
20A
20B
2 to 3
3 to 5
3 to 10
5 to 15
③ When“Z2”SVC is connected between the equipment and
ground install an ELCB (Earth Leakage Circuit Breaker). If
not possible, connect a fuse or thermal fuse at“Ⅲ”position.
5. Electrical Characteristics
Operating ambient temperature
Storage temperature
Voltage temperature coefficient
Insulation resistance(at500V)
-40℃ to + 85℃
-40℃ to + 125℃
-0.05%℃
Over 1000MΩ
■ Recognized standards
Standard
UL 1449
Date
93.03.03
Content
Transient Voltage
surge suppressors
UL
UL 1414
UL 497B
CAS
C22.2
NO.1-M
1981
ISO 9002
58
88.05.10
Across-The-Line
Components
93.07.06
Protectors for data
communication
and fire alarm circuirt
93.07.27
Varistor for Across
-The-Line use as
transient protection
on 120Vac system
94.12.15
Applicable SVC series
Cord connected
and Direct Plug in
Type Equipment
05Series
07Series
10Series
14Series
20Series
Pemanently
connected type
equipment
10Series
14Series
20Series
125V AC
250V AC
SVC 201D - □A
~SVC 391D - □A
SVC 391D - □A
~SVC 182D - □A
SVC 180D - □~SVC 821D - □
125V AC
SVC 201D - □A
~SVC 182D - □A
File No.
E151195
E97754
E154171
LR78923
KRQ-007/94
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
APPLICATION EXAMPEL
59
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
Varistor Terminology
Varistor Voltage : Vnom
Varistor peak terminal voltage
measured with a specified current
applied
The DC current applied is 1mA
normally.
Clamping voltage : Vc
Maximum terminal voltage (peak
voltage across the varistor)
measured with an applied 8/20㎲
impulse of a given peak current.
Rated transient energy : Wtm
Maximum allowable energy for a
single impulse of 2ms square-wave
current waveform with rated continuous voltage applied. Maximum
energy rating base on a shift of
Vnom of less than ±10% of initial
value.
Tset current waveform
Characteristics tests for Varistors
are carried out by using 8/20㎲ test
impulses Data such as the
maximum clamping voltage(Vc)and
the transient peak current(ltm) are
obtained by using this impulse
current.
However, for the Vc characteristics
of the Axial package type a 10mA
DC squarewave current is used to
cary out the test.
Pulse lifetime rating
This is expressed as the maximum
allowable number of impulse currents applied.
8/20㎲ impulse current (or 2ms square wave) is applied at prescribed
interval.
This curve also provides for
derating current as required with
repetitive pulsing.
Rated RMS Voltage : Vacm
Maximum continuous sinusoidal
RMS voltage at 50/60Hz which
may be applied.
Rated DC Voltage : Vdcm
Maximum continuous DC voltage
which may be applied.
Rated average power dissipation
: Ptam
Capacitance
Typical values measured at a test
frequency of 1kHz
Rated peak transient current
: itm
Maximum peak current through the
varistor with line voltage applied.
The maximum peak current with in
the varistor voltage change ratio of
±10% with the standard 8/20 ㎲
impulse current applied two times
at 5 minute interval.
60
Maximum average power that can
be applied within the specified
ambient temperature.
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