SIOV metal oxide varistors
Strap varistors, HighE, standard, LS40 series
Series/Type:
B722*
Date:
February 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.
Strap varistors
B722*
HighE, standard, LS40 series
Construction
Rectangular varistor element as in SIOV-B40
Coating: epoxy resin, flame-retardant to UL 94 V-0
Bolt-holed strap terminals for screw fixing or soldering
Bent or straight strap terminals
Features
High surge current up to 40 kA
Wide operating voltage range 130 … 750 VRMS
PSpice models
Approvals
UL
CSA
CECC (K150 … K385)
Delivery mode
Vacuum-packed styrofoam box
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 CECC 42 000
to CECC 42 000
to CECC 42 000
Page 2 of 14
40/85/56
25 ... + 85
25 ... +110
≥ 2.5
≥ 10
°C
°C
kVRMS
MΩ
Strap varistors
B722*
HighE, standard, LS40 series
Electrical specifications and ordering codes
Maximum ratings (TA = 85 °C)
Ordering code
Bent strap terminals
B72240L0131K100
B72240L0141K100
B72240L0151K100
B72240L0231K100
B72240L0251K100
B72240L0271K100
B72240L0321K100
B72240L0381K100
B72240L0421K100
B72240L0441K100
B72240L0461K100
B72240L0551K100
B72240L0681K100
B72240L0751K100
Straight strap terminals
B72240L0131K102
B72240L0141K102
B72240L0151K102
B72240L0231K102
B72240L0251K102
B72240L0271K102
B72240L0321K102
B72240L0381K102
B72240L0421K102
B72240L0441K102
B72240L0461K102
B72240L0551K102
B72240L0681K102
B72240L0751K102
In2)
(8/20 µs)
15 times
A
Wmax
(2 ms)
Pmax
V
Imax1)
(8/20 µs)
1 time
A
J
W
130
140
150
230
250
275
320
385
420
440
460
550
680
750
170
180
200
300
320
350
420
505
560
585
615
745
895
970
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
310
340
360
460
490
550
640
800
910
950
960
960
1100
1200
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
130
140
150
230
250
275
320
385
420
440
460
550
680
750
170
180
200
300
320
350
420
505
560
585
615
745
895
970
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
40000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
20000
310
340
360
460
490
550
640
800
910
950
960
960
1100
1200
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
Type
VRMS
VDC
SIOV-
V
LS40K130QP
LS40K140QP
LS40K150QP
LS40K230QP
LS40K250QP
LS40K275QP
LS40K320QP
LS40K385QP
LS40K420QP
LS40K440QP
LS40K460QP
LS40K550QP
LS40K680QP
LS40K750QP
LS40K130QPK2
LS40K140QPK2
LS40K150QPK2
LS40K230QPK2
LS40K250QPK2
LS40K275QPK2
LS40K320QPK2
LS40K385QPK2
LS40K420QPK2
LS40K440QPK2
LS40K460QPK2
LS40K550QPK2
LS40K680QPK2
LS40K750QPK2
1) Imax = Maximum discharge current to IEC 61643-11, class II
2) In = Nominal discharge current to IEC 61643-11, class II
Please read Cautions and warnings and
Important notes at the end of this document.
Page 3 of 14
Strap varistors
B722*
HighE, standard, LS40 series
Characteristics (TA = 25 °C)
Ordering code
Bent strap terminals
B72240L0131K100
B72240L0141K100
B72240L0151K100
B72240L0231K100
B72240L0251K100
B72240L0271K100
B72240L0321K100
B72240L0381K100
B72240L0421K100
B72240L0441K100
B72240L0461K100
B72240L0551K100
B72240L0681K100
B72240L0751K100
Straight strap terminals
B72240L0131K102
B72240L0141K102
B72240L0151K102
B72240L0231K102
B72240L0251K102
B72240L0271K102
B72240L0321K102
B72240L0381K102
B72240L0421K102
B72240L0441K102
B72240L0461K102
B72240L0551K102
B72240L0681K102
B72240L0751K102
Vv
(1 mA)
V
∆Vv
(1 mA)
%
vc,max
(ic)
V
ic
A
Ctyp
(1 kHz)
pF
205
220
240
360
390
430
510
620
680
715
750
910
1100
1200
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
340
365
395
595
650
710
840
1025
1120
1180
1240
1500
1815
2000
300
300
300
300
300
300
300
300
300
300
300
300
300
300
5600
5200
4800
3200
2900
2700
2300
1900
1800
1700
1600
1400
1100
1000
205
220
240
360
390
430
510
620
680
715
750
910
1100
1200
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
±10
340
365
395
595
650
710
840
1025
1120
1180
1240
1500
1815
2000
300
300
300
300
300
300
300
300
300
300
300
300
300
300
5600
5200
4800
3200
2900
2700
2300
1900
1800
1700
1600
1400
1100
1000
Varistor elements without coating (suitable for soldering) are available upon request.
Designation:
B72240D***K***
Please read Cautions and warnings and
Important notes at the end of this document.
Page 4 of 14
Strap varistors
B722*
HighE, standard, LS40 series
Dimensional drawings
Bent strap terminals
SIOV-LS40K ... QP
Weight: 20 ... 50 g
Straight strap terminals
SIOV-LS40K ... QPK2
Weight: 20 ... 50 g
Please read Cautions and warnings and
Important notes at the end of this document.
Ordering code
Bent strap terminals
B72240L0131K100
B72240L0141K100
B72240L0151K100
B72240L0231K100
B72240L0251K100
B72240L0271K100
B72240L0321K100
B72240L0381K100
B72240L0421K100
B72240L0441K100
B72240L0461K100
B72240L0551K100
B72240L0681K100
B72240L0751K100
Straight strap terminals
B72240L0131K102
B72240L0141K102
B72240L0151K102
B72240L0231K102
B72240L0251K102
B72240L0271K102
B72240L0321K102
B72240L0381K102
B72240L0421K102
B72240L0441K102
B72240L0461K102
B72240L0551K102
B72240L0681K102
B72240L0751K102
Page 5 of 14
thmax
mm
L ±1.0
mm
8.1
8.2
8.3
9.0
9.2
9.4
9.9
10.6
10.9
11.1
11.4
12.3
13.5
14.1
3.5
3.3
3.2
2.0
1.8
1.6
1.1
0.4
0.0
0.2
0.4
1.2
2.4
3.0
8.1
8.2
8.3
9.0
9.2
9.4
9.9
10.6
10.9
11.1
11.4
12.3
13.5
14.1
4.4
4.5
4.6
5.4
5.6
5.8
6.3
6.9
7.3
7.6
7.8
8.8
9.9
10.5
Strap varistors
B722*
HighE, standard, LS40 series
Reliability data
Test
Test methods/conditions
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.
Max. DC operating
voltage
The maximum allowable DC operating Ileak (t = 1000 h) ≤ Ileak (t = 0 h)
voltage VDC at UCT
|∆V/V (1 mA)| ≤10%
+5/–0 °C is applied for 1000 ±48 h.
The leakage current Ileak (t) during test is
recorded.
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.
Surge current derating,
8/20 µs
10 surge currents (8/20 µs), unipolar,
interval ≥60 s, amplitude corresponding
to derating curve for 10 impulses at
20 µs
Fast temperature cycling IEC 60068-2-14, test Na, LCT/UCT,
dwell time 30 min, 5 cycles
Requirement
To meet the specified value
|∆V/V (1 mA)| ≤10%
(measured in direction of
surge current)
No visible damage
|∆V/V (1 mA)| ≤10%
No visible damage
Damp heat, steady state IEC 60068-2-78
|∆V/V (1 mA)| ≤10%
The specimen shall be subjected to
40 ±2 °C, 90 to 95% r. H. for 56 ±2 days
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.
Note:
UCT = Upper category temperature
LCT = Lower category temperature
Please read Cautions and warnings and
Important notes at the end of this document.
Page 6 of 14
Strap varistors
B722*
HighE, standard, LS40 series
v/i characteristics
v = f (i) for explanation of the characteristics refer to "General technical information", chapter 1.6.3
A = Leakage current, B = Protection level } for worst-case varistor tolerances
SIOV-LS40K130QP(K2) ... K750QP(K2)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 7 of 14
Strap varistors
B722*
HighE, standard, LS40 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-LS40K130QP(K2) ... K150QP(K2)
SIOV-LS40K230QP(K2) ... K460QP(K2)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 8 of 14
Strap varistors
B722*
HighE, standard, LS40 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-LS40K550QP(K2) ... K750QP(K2)
Please read Cautions and warnings and
Important notes at the end of this document.
Page 9 of 14
Strap varistors
B722*
HighE, standard, LS40 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: