SIOV metal oxide varistors
Leaded varistors, SuperioR, S25 series
Series/Type:
B722*
Date:
January 2018
© EPCOS AG 2018. 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
B722*
SuperioR, S25 series
Construction
Round varistor element, leaded
Coating: epoxy resin, flame-retardant to UL 94 V-0
Terminals: tinned wire
Features
High-energy SuperioR series E4
Wide operating voltage range 130 … 750 VRMS
All types duty cycle @ 6 kV/ 3 kA = >10 pulses, according to IEC 62368-1; G.8.2 and IEC
60950-1; Annex Q, IEC 61051-2
UL approval to UL 1449 (file number E321126 – exception 580 V)
Very high surge current rating up to 20 kA
Approvals
UL
CSA
IEC
VDE
Delivery mode
Bulk (standard)
For further details refer to chapter "Taping, packaging and lead configuration" for leaded
varistors.
General technical data
Climatic category
Operating temperature
Storage temperature
Electric strength
Insulation resistance
Please read Cautions and warnings and
Important notes at the end of this document.
to IEC 60068-1
to IEC 61051
to IEC 61051
to IEC 61051
Page 2 of 23
40/105/56
40 ... +105
40 ... +125
≥ 2.5
≥ 100
°C
°C
kVRMS
MΩ
Leaded varistors
B722*
SuperioR, S25 series
Electrical specifications and ordering codes
Maximum ratings (TA = 105 °C)
imax
In 1)
(8/20 µs) (8/20 µs)
1 time
15 times
V
V
A
A
B72225S4131K101
S25K130E4R12 130
170
20000
10000
B72225S4141K101
S25K140E4R12 140
180
20000
10000
B72225S4151K101
S25K150E4R12 150
200
20000
10000
B72225S4171K101
S25K175E4R12 175
225
20000
10000
B72225S4231K101
S25K230E4R12 230
300
20000
10000
B72225S4251K101
S25K250E4R12 250
320
20000
10000
B72225S4271K101
S25K275E4R12 275
350
20000
10000
B72225S4301K101
S25K300E4R12 300
385
20000
10000
B72225S4321K101
S25K320E4R12 320
420
20000
10000
B72225S4381K101
S25K385E4R12 385
505
20000
10000
B72225S4421K101
S25K420E4R12 420
560
20000
10000
B72225S4441K101
S25K440E4R12 440
585
20000
10000
B72225S4461K101
S25K460E4R12 460
615
20000
10000
B72225S4511K101
S25K510E4R12 510
670
20000
10000
B72225S4551K101
S25K550E4R12 550
745
20000
10000
B72225S4581K101
S25K580E4R12 580
780
20000
10000
B72225S4621K101
S25K625E4R12 625
825
20000
10000
B72225S4681K101
S25K680E4R12 680
895
20000
10000
B72225S4751K101
S25K750E4R12 750
1060
20000
10000
1)
Note: Nominal discharge current In according to UL 1449, 4th edition.
Ordering code
Type
(untaped)
SIOV-
Please read Cautions and warnings and
Important notes at the end of this document.
VRMS
VDC
Page 3 of 23
Wmax
(2 ms)
Pmax
J
W
185
195
215
245
315
345
375
410
445
600
700
710
720
750
780
800
855
940
1025
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Leaded varistors
B722*
SuperioR, S25 series
Characteristics (TA = 25 °C)
Ordering code
B72225S4131K101
B72225S4141K101
B72225S4151K101
B72225S4171K101
B72225S4231K101
B72225S4251K101
B72225S4271K101
B72225S4301K101
B72225S4321K101
B72225S4381K101
B72225S4421K101
B72225S4441K101
B72225S4461K101
B72225S4511K101
B72225S4551K101
B72225S4581K101
B72225S4621K101
B72225S4681K101
B72225S4751K101
Vv
(1 mA)
V
205
220
240
270
360
390
430
470
510
620
680
715
750
820
910
940
1000
1100
1200
Please read Cautions and warnings and
Important notes at the end of this document.
∆Vv
(1 mA)
%
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
vc,max
(ic)
V
340
360
395
455
595
650
710
775
840
1025
1120
1180
1240
1355
1500
1580
1650
1815
2000
Page 4 of 23
ic
A
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
150
Ctyp
(1 kHz)
pF
3800
3550
3250
2900
2250
2100
1900
1750
1600
1250
1150
1100
1050
950
860
830
780
710
650
Leaded varistors
B722*
SuperioR, S25 series
Dimensional drawings
Weight
Nominal diameter
mm
VRMS
V
Weight
g
25
130 ... 750 5.2 ... 22.2
The weight of varistors in between these
voltage classes can be interpolated.
Dimensions
Ordering code
B72225S4131K101
B72225S4141K101
B72225S4151K101
B72225S4171K101
B72225S4231K101
B72225S4251K101
B72225S4271K101
B72225S4301K101
B72225S4321K101
B72225S4381K101
B72225S4421K101
B72225S4441K101
B72225S4461K101
B72225S4511K101
B72225S4551K101
B72225S4581K101
B72225S4621K101
B72225S4681K101
B72225S4751K101
[e] ±1
mm
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
12.7
Please read Cautions and warnings and
Important notes at the end of this document.
a (typical)
mm
3.4
3.5
3.6
3.8
4.4
4.6
4.7
4.8
4.9
5.0
5.2
5.4
5.6
5.8
6.0
6.1
6.2
6.3
6.5
wmax
mm
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
27.5
Page 5 of 23
thmax
mm
5.7
5.8
5.9
6.1
6.7
6.9
7.2
7.4
7.6
8.3
8.6
8.9
9.1
9.5
10.0
10.2
10.6
11.2
11.7
hmax
mm
31.0
31.0
31.0
31.0
31.0
31.0
31.0
31.0
31.0
31.5
31.5
31.5
31.5
31.5
32.0
32.0
32.0
32.5
32.5
lmin
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
25.0
25.0
25.0
25.0
25.0
25.0
25.0
d ±0.05
mm
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Leaded varistors
B722*
SuperioR, S25 series
Reliability data
Test
Test methods/conditions
Requirement
Varistor voltage
The voltage between two terminals with To meet the specified value
the specified measuring current applied
is called VV (1 mADC @ 0.2 ... 2 s).
Clamping voltage
The maximum voltage between two
terminals with the specified standard
impulse current (8/20 µs) applied.
To meet the specified value
Endurance at upper
category temperature
1000 h at UCT
|∆V/V (1 mA)| ≤10%
Surge current derating,
8/20 µs
10 surge currents (8/20 µs), unipolar,
interval 30 s, amplitude corresponding
to derating curve for 10 impulses at
20 µs
Surge current derating,
2 ms
10 surge currents (2 ms), unipolar,
|∆V/V (1 mA)| ≤10%
interval 120 s, amplitude corresponding (measured in direction of
to derating curve for 10 impulses at
surge current)
2 ms
No visible damage
Electric strength
IEC 61051-1, test 4.9.2
After having continuously applied the
maximum allowable AC voltage at UCT
±2 °C for 1000 h, the specimen shall be
stored at room temperature and normal
humidity for 1 to 2 h.
Thereafter, the change of VV shall be
measured.
Metal balls method, 2500 VRMS, 60 s
The varistor is placed in a container
holding 1.6 ±0.2 mm diameter metal
balls such that only the terminations of
the varistor are protruding.
The specified voltage shall be applied
between both terminals of the specimen
connected together and the electrode
inserted between the metal balls.
Please read Cautions and warnings and
Important notes at the end of this document.
Page 6 of 23
|∆V/V (1 mA)| ≤10%
(measured in direction of
surge current)
No visible damage
No breakdown
Leaded varistors
B722*
SuperioR, S25 series
Test
Test methods/conditions
Requirement
Climatic sequence
The specimen shall be subjected to:
a) dry heat at UCT, 16 h, IEC
60068-2-2, test Ba
b) damp heat, 1st cycle:
55 °C, 93% r. H., 24 h, IEC
60068-2-30, test Db
c) cold, LCT, 2 h, IEC 60068-2-1, test
Aa
d) damp heat, additional 5 cycles:
55 °C/25 °C, 93% r. H., 24 h/cycle,
IEC 60068-2-30, test Db.
|∆V/V (1 mA)| ≤10%
Rins ≥100 MΩ
Then the specimen shall be stored at
room temperature and normal humidity
for 1 to 2 h.
Thereafter, the change of VV shall be
measured. Thereafter, insulation resistance Rins shall be measured at
V = 500 V.
Rapid change of
temperature
IEC 60068-2-14, test Na, LCT/UCT,
dwell time 30 min, 5 cycles
|∆V/V (1 mA)| ≤5%
No visible damage
Damp heat, steady state
IEC 60068-2-78, test Ca
|∆V/V (1 mA)| ≤10%
The specimen shall be subjected to
40 ±2 °C, 90 to 95% r. H. for 56 days
without load / with 10% of the maximum continuous DC operating voltage
VDC. Then stored at room temperature
and normal humidity for 1 to 2 h.
Thereafter, the change of VV shall be
measured. Thereafter, insulation resistance Rins shall be measured at
V = 500 V (insulated varistors only).
Rins ≥100 MΩ
Please read Cautions and warnings and
Important notes at the end of this document.
Page 7 of 23
Leaded varistors
B722*
SuperioR, S25 series
Test
Test methods/conditions
Solderability
IEC 60068-2-20, test Ta,
Resistance to soldering
heat
IEC 60068-2-20, test Tb, method 1A,
260 °C, 10 s:
Requirement
The inspection shall be
carried out under adequate
method 1 with modified conditions for
light with normal eyesight or
lead-free solder alloys: 245 °C, 3 s:
with the assistance of a
After dipping the terminals to a depth of
magnifier capable of giving
approximately 3 mm from the body in a
a magnification of 4 to
soldering bath of 245 °C for 3 s, the
10 times. The dipped
terminals shall be visually examined.
surface shall be covered
with a smooth and bright
solder coating with no more
than small amounts of
scattered imperfections
such as pinholes or
un-wetted or de-wetted
areas. These imperfections
shall not be concentrated in
one area.
|∆V/V (1 mA)| ≤5%
No visible damage
Each lead shall be dipped into a solder
bath having a temperature of 260 ±5 °C
to a point 2.0 to 2.5 mm from the body
of the specimen, be held there for
10 ±1 s and then be stored at room
temperature and normal humidity for
1 to 2 h.
The change of VV shall be measured
and the specimen shall be visually
examined.
Tensile strength
IEC 60068-2-21, test Ua1
|∆V/V (1 mA)| ≤5%
After gradually applying the force
specified below and keeping the unit
fixed for 10 s, the terminal shall be
visually examined for any damage.
No break of solder joint,
no wire break
Force for wire diameter:
0.6 mm = 10 N
0.8 mm = 10 N
1.0 mm = 20 N
Please read Cautions and warnings and
Important notes at the end of this document.
Page 8 of 23
Leaded varistors
B722*
SuperioR, S25 series
Test
Test methods/conditions
Requirement
Vibration
IEC 60068-2-6, test Fc, method B4
Frequency range: 10 … 55 Hz
Amplitude:
0.75 mm or 98 m/s2
Duration:
6 h (3 · 2 h)
Pulse:
sine wave
After repeatedly applying a single
harmonic vibration according to the
table above.
The change of VV shall be measured
and the specimen shall be visually
examined.
|∆V/V (1 mA)| ≤5%
IEC 60068-2-29, test Eb
Pulse duration:
6 ms
Max. acceleration: 400 m/s2
Number of bumps: 4000
Pulse:
half sine
IEC 60695-11-5 (needle flame test)
|∆V/V (1 mA)| ≤5%
Bump
Fire hazard
Severity: vertical 10 s
Note:
UCT = Upper category temperature
LCT = Lower category temperature
Rins = Insulation resistance
Please read Cautions and warnings and
Important notes at the end of this document.
Page 9 of 23
No visible damage
No visible damage
5 s max.
Leaded varistors
B722*
SuperioR, S25 series
v/i characteristics
v = f (i) - for explanation of the characteristics refer to "General technical information", 1.6.3
A = Leakage current, B = Protection level } for worst-case varistor tolerances
SIOV-S25 ... E4R12
Please read Cautions and warnings and
Important notes at the end of this document.
Page 10 of 23
Leaded varistors
B722*
SuperioR, S25 series
Derating curves
Maximum surge current imax = f (tr, pulse train)
For explanation of the derating curves refer to "General technical information", section 1.8.1
SIOV-S25K130 ... K750E4R12
Please read Cautions and warnings and
Important notes at the end of this document.
Page 11 of 23
Leaded varistors
B722*
SuperioR, S25 series
Taping, packaging and lead configuration
1
EPCOS ordering code system
For leaded varistors
B722 or B723
10
S
2
271
K
Monolithic
varistor
Nominal
disc diameter
Design:
F = Fail-safe varistor
Q = EnergetiQ
S = Leaded varistor
T = ThermoFuse
U = Disk type, SNF
X = Disk type, SNF (AEC-Q200)
Series:
0 = StandarD
1 = Automotive
2 = AdvanceD
3 = SuperioR
4 = SuperioR
Max. AC operating voltage:
271 = 27 101 = 275 VAC
140 = 14 100 = 14 VAC
141 = 14 101 = 140 VAC
Tolerance of varistor voltage:
K = ±10%
J = ±5%
S = Special tolerance
Lead configuration:
1 = Straight leads
2 thru 9 = Kinked form
Packaging:
0 = Bulk,
1 thru 7 = Taping style
Internal coding:
1 = Standard
Please read Cautions and warnings and
Important notes at the end of this document.
Page 12 of 23
1
0
1
Leaded varistors
B722*
SuperioR, S25 series
2
Taping and packaging of leaded varistors
Tape packaging for lead spacing
= 5 fully conforms to IEC 60286-2, while for lead spacings
= 7.5 and 10 the taping mode is based on this standard.
2.1
Taping in accordance with IEC 60286-2 for lead spacing 5.0 mm
2.2
Taping based on IEC 60286-2 for lead spacing 7.5 and 10 mm
Please read Cautions and warnings and
Important notes at the end of this document.
Page 13 of 23
Leaded varistors
B722*
SuperioR, S25 series
2.3
Tape dimensions (in mm)
Symbol
w
= 5.0 Tolerance
th
= 7.5 Tolerance
= 10.0 Tolerance
max.
max.
max.
max.
max.
max.
d
P0
0.6
12.7
±0.05
±0.3
0.8
12.71)
P1
F
∆h
∆p
3.85
5.0
0
0
±0.7
+0.6/0.1
±2.0
±1.3
8.95
±0.8
7.5
±0.8
depends on s
0
±2.0
W
W0
18.0
5.5
±0.5
min.
18.0
11.0
±0.5
min.
18.0
11.0
±0.5
min.
W1
W2
H
H0
9.0
3.0
18.0
16.0
(18.0)
32.2
4.0
0.9
11.0
0.5
±0.5
max.
+2.0/0
±0.5
9.0
3.0
18.0
16.0
(18.0)
45.0
4.0
0.9
11.0
+0.75/0.5
max.
+2.0/0
±0.5
9.0
3.0
18.0
16.0
+0.75/0.5
max.
+2.0/0
±0.5
max.
±0.2
max.
max.
45.0
4.0
0.9
11.0
max.
±0.2
max.
max.
H1
D0
t
L
L1
max.
±0.2
max.
max.
max.
±0.05
±0.3
1.0
12.7
7.7
±0.8
10.0
±0.8
depends on s
0
±2.0
1) Taping with P0 = 15.0 mm upon request
2) Applies only to uncrimped types
3) Applies only to crimped types (H0 = 18 upon request)
Please read Cautions and warnings and
Important notes at the end of this document.
±0.05
±0.3
Page 14 of 23
Remarks
see tables in
each series
under
"Dimensions"
±1 mm/20
sprocket holes
measured at
top of component body
Peel-off
force > 5 N
2)
3)
without lead
Leaded varistors
B722*
SuperioR, S25 series
2.4
Taping mode
Example: B72210S0271K1 5 1
|
Digit 14
Digit 14 Taping Reel type
mode
Seating plane height H0
for crimped types
mm
0
Bulk
1
G
I
16
2
G2
I
18
3
G3
II
16
4
G4
II
18
5
G5
III
16
6
GA
Ammo pack 16
7
G2A
Ammo pack 18
Internal coding for special taping
G6
III
18
G10
II
16
G11
II
18
G10A Ammo pack 16
G11A Ammo pack 18
2.5
Seating plane height H
for uncrimped types
mm
18
18
18
18
Pitch distance
P0
mm
12.7
12.7
12.7
12.7
12.7
12.7
12.7
18
18
12.7
15.0
15.0
15.0
15.0
Reel dimension
Dimensions (in mm)
Reel type
I
II
III
d
360 max.
360 max.
500 max.
f
31 ±1
31 ±1
23 ±1
n
approx. 45
approx. 55
approx. 59
w
54 max.
64 max.
72 max.
If reel type III is not compatible with insertion equipment because of its large diameter, nominal
disk diameter 10 mm and 14 mm can be supplied on reel II upon request (taping mode G3).
Please read Cautions and warnings and
Important notes at the end of this document.
Page 15 of 23
Leaded varistors
B722*
SuperioR, S25 series
2.6
Ammo pack dimensions
3
Lead configuration
Straight leads are standard for disk varistors. Other lead configurations as crimp style or customer-specific lead wire length according to 3.1, 3.2, 3.3 and 3.4 are optional. Crimped leads
(non-standard) are differently crimped for technical reasons; the individual crimp styles are denoted by consecutive numbers (S, S2 through S5) as shown in the dimensional drawings below.
The crimp styles of the individual types can be seen from the type designation in the ordering tables.
3.1
Crimp style mode
Example: B72210S0271K 5 01
|
Digit 13
Digit 13 of ordering code
Crimp style
Figure
1
Standard, straight leads
1
2
S2
2
3
S3
3
5
S5
4
5
Available upon request
Internal coding
Please read Cautions and warnings and
Important notes at the end of this document.
Page 16 of 23
Leaded varistors
B722*
SuperioR, S25 series
3.2
Standard leads and non-standard crimp styles
The basic dimensions in figure 1 to 5 are valid for types with either round or square
(EnergetiQ series) component head.
Standard, straight leads
Non-standard,
crimp style S2
Non-standard,
crimp style S3
Figure 1
Figure 2
Figure 3
Non-standard, crimp style S5
Figure 4
Please read Cautions and warnings and
Important notes at the end of this document.
Page 17 of 23
Leaded varistors
B722*
SuperioR, S25 series
3.3
Trimmed leads (non-standard)
Varistors with cut leads available upon request.
Lead length tolerances:
Straight leads
Crimped leads
Minimum lead length
+/0.8 mm
+/0.5 mm
3.0 mm
Figure 5
Please read Cautions and warnings and
Important notes at the end of this document.
Page 18 of 23
Leaded varistors
B722*
SuperioR, S25 series
Cautions and warnings
General
1. EPCOS metal oxide varistors are designed for specific applications and should not be used
for purposes not identified in our specifications, application notes and data books unless otherwise agreed with EPCOS during the design-in-phase.
2. Ensure suitability of SIOVs through reliability testing during the design-in phase. SIOVs
should be evaluated taking into consideration worst-case conditions.
3. For applications of SIOVs in line-to-ground circuits based on various international and local
standards there are restrictions existing or additional safety measures required.
Storage
1. Store SIOVs only in original packaging. Do not open the package prior to processing.
2. Recommended storage conditions in original packaging:
Storage temperature: 25 °C ... +45 °C,
Relative humidity:
