Leaded Varistors
Automotive Series
Characteristics (TA = 25 LC)
Type
VJump Vv
ꢂVv
Max. clamping voltage Ctyp
Derating V/I char-
(untaped)
SIOV-
(5 min) (1 mA) (1 mA)
v
V
i
A
(1 kHz) curve
acteristic
Page
V
V
%
nF
Page
12-V supply systems
S07K14AUTOS2D1 25
S10K14AUTO 25
S10K14AUTOS5D1 25
S14K14AUTO 25
S14K14AUTOS5D1 25
22
22
22
22
22
22
M 10
M 10
M 10
M 10
M 10
M 10
43
2,5
5,0
5,0
10,0
10,0
20,0
2,3
5,2
5,2
10,0
10,0
19,0
246
248
248
249
249
251
275
276
276
277
277
278
43
43
43
43
43
S20K14AUTO
25
S10K17AUTO
S14K17AUTO
S20K17AUTO
30
30
30
27
27
27
M 10
M 10
M 10
53
53
53
5,0
10,0
20,0
4,4
8,2
15,6
248
249
251
276
277
278
24-V supply systems
S20K25AUTO
40
39
M 10
77
20,0
11,1
251
278
S14K30AUTO
S20K30AUTO
45
45
47
47
M 10
M 10
93
93
10,0
20,0
5,0
9,4
249
251
277
278
Notes
ꢀ If the maximum loads specified for load dump and jump start are fully utilized, subsequent
polarity reversal of the AUTO varistors is inadmissible.
ꢀ If the load remains under the maximum ratings, polarity reversal may be admissible.
Contact EPCOS for consultancy on this kind of problem.
ꢀ Load dump or jump start can decrease the varistor voltage in load direction by max. 15 %.
ꢀ Load dump: min. time of energy input 40 ms, interval 60 s.
Characteristics
Test methods
Specifications
Fast temperature cycling
IEC 60068-2-14, test Na,
|ꢂV/V (1 mA)| ? 10 %
UCT/LCT, dwell time 15 min
100 cycles: SIOV-S…AUTO
1000 cycles: SIOV-S…AUTOD1
No visible damage
Damp heat, steady state
Max. DC operating voltage
Based on IEC 60068-2-3,
85 LC, 85 % r.h., VDC, 1000 h
|ꢂV/V (1 mA)|1) ? 10 %
No visible damage
|ꢂV/V (1 mA)|1) ? 10 %
No visible damage
MIL STD 202F, method 108A,
UCT, VDC, 1000 h
1) Measured in load direction
195 04/02
EPCOS [ EPCOS ]
