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
Device
Type
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
SVC
271D-05A
271D-07A
271D-10A
271D-14A
271D-20A
361D-05A
361D-07A
361D-10A
361D-14A
361D-20A
391D-05A
391D-07A
391D-10A
391D-14A
391D-20A
431D-05A
431D-07A
431D-10A
431D-14A
431D-20A
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
911D-10A
911D-14A
911D-20A
102D-10A
102D-14A
102D-20A
112D-10A
112D-14A
112D-20A
182D-10A
182D-14A
Dia
(mm)
5
7
10
14
20
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
Vacm
(Volts)
Vdcm
(Volts)
Wtm
(Joules)
6.0
12.0
30.0
50.0
90.0
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
Ptam
(Watts)
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
0.1
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
Itm
(Amps)
250
600
1250
2500
4000
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
Vnom
(Volts)
Tolerance
Min
Max
(Volts)
(Volts)
247
303
VC
(Volts)
475
455
455
455
455
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
Ip
(Amps)
5
10
25
50
100
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
f=1kHz
(pF)
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
175
225
270
230
300
360
324
396
250
320
390
351
429
275
350
430
387
473
300
385
470
423
517
350
460
560
504
616
385
550
620
558
682
420
560
680
612
748
460
615
750
675
825
485
640
780
702
858
510
670
820
738
902
550
745
910
819
1001
625
825
1000
900
1100
680
1000
895
1465
1100
1800
990
1620
1210
1980
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’ Laboratories, Inc. and
s
Canadian Standards Association
UL File No. E97754, E151195, E154171.
CSA File No. LR78923.
47
CERAMIC SURGE ABSORBERS (VARISTORS)
SVC
ITEM
Body Diameter
Body thickness
Lead diameter
Pitch of sprocket hole
Pitch of component
Lead lenth from hole center to Lead
Lead length from hole center to
component center
Lead spacing
Deviation along tape
Deviation across tape
Carrier tape width
Hold down tape width
Position of sprocket hole
Hold down tape position
Lead wire clinch height
Height of component hole
Component height
Diameter of sprocket hole
Length of snipped lead
Total tape thickness
Total thickness tape and lead wire
Length of snipped lead
F
△S
△h
W
W
0
W
1
W
2
H
0
H
H
1
D
0
L
t
1
t
2
l
x
5.0
+0.8
-0.2
Code
D
T
d
P
0
P
P
1
P
2
Dimensions(mm)
FS5, FK5
See Page 46
0.55±0.05
12.7±0.3
6.35±1.3
3.85±0.7
6.35±1.3
25.4±1.0
8.95±1.0
12.7±1.5
7.5±1.0
0.70±0.05
FF9
0±1.0
0±2.0
18.0
+1.0
-0.5
5.0min 9.0min
9.0±0.5
3.0max
16.0±0.5
20.0
+1.5
-1.0
32.25max
4.0±0.2
11.0max
0.7±0.2
1.5max
1.0max
1.7max
ITEM
Body Diameter
Body thickness
Lead diameter
Pitch of sprocket hole
Pitch of component
Lead lenth from hole center to Lead
Lead length from hole center to
component center
Lead spacing
Deviation along tape
Deviation across tape
Carrier tape width
Hold down tape width
Position of sprocket hole
Hold down tape position
Lead wire clinch height
Height of component hole
Component height
Diameter of sprocket hole
Length of snipped lead
Total tape thickness
Total thickness tape and lead wire
Length of snipped lead
Code
D
T
d
P
0
P
P
1
P
2
F
△S
△h
W
W
0
W
1
W
2
H
0
H
H
1
D
0
L
t
1
t
2
l
x
Dimensions(mm)
FF7
See Page 46
0.70±0.05
15.0±0.3
15.0±1.0
3.75±1.0
7.50±1.5
7.5±1.0
0±1.0
0±2.0
18.0
+1.0
-0.5
5.0min
9.0±0.5
3.0max
16.0±0.5
20.0
+1.5
-1.0
FF8
30.0±1.0
40.00max
4.0±0.2
11.0max
0.7±0.2
1.7max
1.0max
49
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