25D Series
Varistor Type MYG
Type MYG Varistors are made of semiconductor ceramic materials composed mainly of
zinc oxide. They have non-linear resistance that changes as a function of applied voltage. It has
small size, high current capacity, and high protection level.
Features
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Recommended Applications
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Protection of semiconductors
Surge protection of consumer equipment
Surge protection of communication, measuring or controller instrument
Relay or electromagnetic Valve surge absorption
Wide Varistor voltage range (200V½１６０0V)
Excellent non-linearity and protection level
Large withstanding surge current
Fast response（≤20ns）
Explanation of Part Numbers
D
Element Size
25
25mm
Varistor Voltage
The first two digits are
S
ignificant figures and the
third one denotes number of
zeros following
Voltage
Tolerance
K:±10%
Dimension
Range of voltage
(V)
D
max
Dimensions(mm)
T
max
L
min
d±
0.1
D1±1.0
200 - 1600
31.0
14.0
25
1.0
10.0~13.0
REV.2014.05.01
01 | www.spsemi.cn
25D Series
Specification and Electrical Characteristics
Maximum
Varistor Voltage
part Number Allowable Voltage
V
AC
(V)
25D162K
25D142K
25D122K
25D112K
25D102K
25D911K
25D821K
25D781K
25D751K
25D681K
25D621K
25D561K
25D511K
25D471K
25D431K
25D391K
25D361K
25D331K
25D301K
25D271K
25D241K
25D221K
25D201K
1000
880
750
680
625
550
510
485
460
420
385
350
320
300
275
250
230
210
190
175
150
140
130
V
DC
(V)
1280
1140
990
895
825
745
670
640
615
560
505
460
415
385
350
320
300
275
250
225
200
180
170
V
1mA
(V)
1600(1440-1760)
1400(1260-1540)
1200(1350-1650)
1100(990-1210)
1000(900-1100)
910(819-1001)
820(738-902)
780(702-858)
750(675-825)
680(612-748)
620(558-682)
560(504-616)
510(459-561)
470(423-517)
430(387-473)
390(351-429)
360(324-396)
330(297-363)
300(270-330)
270(243-297)
240(216-264)
220(198-242)
200(180-220)
Maximum
Clamping
Voltage
I
P
(A)
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
V
C
(V)
2640
2310
1980
1815
1650
1500
1355
1290
1240
1120
1025
925
845
775
710
650
595
550
500
455
395
360
340
Withstanding
Surge Current
I(A)
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
15000
Maximum
Energy
(10/100μS)
(J)
970
850
770
770
685
620
570
530
510
450
460
440
420
400
380
360
330
300
275
255
220
200
190
Typical
Capacitance(R
eference)
1KHz(pf)
450
500
550
600
650
700
800
850
850
950
1050
1150
1250
1400
1500
1600
1750
1900
2100
2400
2650
2900
3200
Note：
Varistor voltage is measured at 0.1 mA for 05D, and at 1 mA for 07D, 10D, 14D, 20D,25D respectively.
1、
2、Operating Temperature Range:
－40℃½+85℃
Storage Temperature Range:
－40℃½+125℃
REV.2014.05.01
02 | www.spsemi.cn
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