SIOV metal oxide varistors
Leaded varistors, Automotive series
Series/Type:
Date:
B722*
December 2011
© EPCOS AG 2015. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.
Leaded varistors
Automotive series
B722*
Construction
Round varistor element, leaded
Coating: epoxy resin (D1: phenolic resin),
flame-retardant to UL 94 V-0
Features
High energy absorption,
particularly for load dump
Jump-start strength
Stable protection level, minimum leakage current
High resistance to cyclic temperature stress
PSpice models
High operating temperature range up to 125
°C
Delivery mode
Bulk (standard), taped versions on reel or in Ammo pack upon request.
For further details refer chapter "Taping, packaging and lead configuration" for leaded
varistors.
General technical data
Climatic category
Operating temperature
Storage temperature
Electric strength
Insulation resistance
Response time
for D1 types
to IEC 61051
to IEC 61051
to IEC 60068-1
for D1 types
to IEC 61051
for D1 types
40/85/56
40/125/56
40 ... + 85
40 ... +125
40 ... +125
40 ... +150
≥
2.5 (not D1 types)
≥
100 (not D1 types)
< 25
°C
°C
°C
°C
kV
RMS
MΩ
ns
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 24
Leaded varistors
Automotive series
B722*
Electrical specifications and ordering codes
Maximum ratings (T
A
= 85
°C,
T
A
= 125
°C
for S...D1 types)
Ordering code
Type
(untaped)
SIOV-
V
RMS
V
14
14
14
14
14
14
17
17
17
25
30
30
V
DC
V
16
16
16
16
16
16
20
20
20
28
34
34
i
max
W
max
P
max
(8/20 µs) (2 ms)
A
J
W
250
500
500
1000
1000
2000
500
1000
2000
2000
1000
2000
0.9
2.0
2.0
4.0
4.0
12.0
2.5
5.0
14.0
22.0
9.0
26.0
0.02
0.05
0.05
0.10
0.10
0.20
0.05
0.10
0.20
0.20
0.10
0.20
W
LD
(10 x)
J
12
25
25
50
50
100
25
50
100
100
50
100
12-V supply systems
B72207S1140K201 S07K14AUTOS2D1
B72210S1140K102 S10K14AUTO
B72210S1140K501 S10K14AUTOS5D1
B72214S1140K102 S14K14AUTO
B72214S1140K501 S14K14AUTOS5D1
B72220S1140K102 S20K14AUTO
B72210S1170K102 S10K17AUTO
B72214S1170K102 S14K17AUTO
B72220S1170K102 S20K17AUTO
24-V supply systems
B72220S1250K102 S20K25AUTO
B72214S1300K102 S14K30AUTO
B72220S1300K102 S20K30AUTO
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 3 of 24
Leaded varistors
Automotive series
Characteristics (T
A
= 25
°C)
Ordering code
V
Jump
(5 min)
V
25
25
25
25
25
25
30
30
30
40
45
45
V
v
(1 mA)
V
22
22
22
22
22
22
27
27
27
39
47
47
∆V
v
(1 mA)
%
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
v
c,max
(i
c
)
V
43
43
43
43
43
43
53
53
53
77
93
93
i
c
A
2.5
5.0
5.0
10.0
10.0
20.0
5.0
10.0
20.0
20.0
10.0
20.0
B722*
C
typ
(1 kHz)
nF
2.3
5.2
5.2
10.0
10.0
19.0
4.4
8.2
15.6
11.1
5.0
9.4
12-V supply systems
B72207S1140K201
B72210S1140K102
B72210S1140K501
B72214S1140K102
B72214S1140K501
B72220S1140K102
B72210S1170K102
B72214S1170K102
B72220S1170K102
24-V supply systems
B72220S1250K102
B72214S1300K102
B72220S1300K102
Note:
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.
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 4 of 24
Leaded varistors
Automotive series
B722*
Dimensional drawings
Weight
Nominal diameter
mm
7
10
14
20
V
RMS
V
14
14; 17
14; 17; 30
14; 17; 25; 30
Weight
g
0.6 ... 0.8
1.0 ... 2.0
2.0 ... 4.0
3.0 ... 6.0
Dimensions
Ordering code
V
RMS
= 14 V
B72207S1140K201
B72210S1140K102
B72210S1140K501
B72214S1140K102
B72214S1140K501
B72220S1140K102
V
RMS
= 17 V
B72210S1170K102
B72214S1170K102
B72220S1170K102
V
RMS
= 25 V
B72220S1250K102
V
RMS
= 30 V
B72214S1300K102
B72220S1300K102
[e]
±1
mm
5.0
7.5
7.5
7.5
7.5
10.0
7.5
7.5
10.0
10.0
7.5
10.0
a
±1
mm
1.3
1.5
1.5
1.5
1.5
1.6
1.6
1.7
1.6
2.9
1.8
3.2
w
max
mm
9.0
13.0
12.0
17.0
16.0
23.0
13.0
17.0
23.0
23.0
17.0
23.0
th
max
mm
3.5
5.0
4.0
5.0
4.0
5.4
5.1
5.1
5.6
6.2
5.3
6.5
h
max
mm
12.5
16.5
16.0
20.5
20.0
27.5
16.5
20.5
27.5
27.5
20.5
27.5
l
min
mm
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
d
±0.05
mm
0.6
0.8
0.8
0.8
0.8
1.0
0.8
0.8
1.0
1.0
0.8
1.0
For crimp styles S2 and S5 refer to chapter "Taping, packaging and lead configuration".
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 24
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