SIOV metal oxide varistors
Leaded varistors, SuperioR-MP, S20 series
Series/Type:
Date:
B722*
May
2017
© EPCOS AG 2017. 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
SuperioR-MP, S20 series
B722*
Construction
Round varistor element, leaded
Coating: epoxy resin, flame-retardant to UL 94 V-0
Features
Wide operating voltage range 130 ... 680 V
RMS
All types duty cycle @ 6 kV/ 3 kA = >10 pulses, according to IEC 60950-1, Annex Q;
IEC 61051-2
All types I
nom
@ 5 kA = >15 impulses according to UL 1449, 3
rd
edition surge current
generator (8/20 µs), type 2 listed
Multiple pulse handling capability
Approvals
UL
CSA (all types
≤320
V
RMS
)
VDE
IEC
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
to IEC 60068-1
to IEC 61051
to IEC 61051
to IEC 61051
40/105/56
40 ... +105
40 ... +125
≥
2.5
≥
100
< 25
°C
°C
kV
RMS
MΩ
ns
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 2 of 23
Leaded varistors
SuperioR-MP, S20 series
B722*
Reliability data
Test
Varistor voltage
Test methods/conditions
Requirement
The voltage between two terminals with To meet the specified value
the specified measuring current applied
is called V
V
(1 mA
DC
@ 0.2 ... 2 s).
The maximum voltage between two
terminals with the specified standard
impulse current (8/20 µs) applied.
1000 h at UCT
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 V
V
shall be
measured.
10 surge currents (8/20
µs),
unipolar,
interval 30 s, amplitude corresponding
to derating curve for 10 impulses at
20
µs
|∆V/V (1 mA)|
≤10%
(measured in direction of
surge current)
No visible damage
To meet the specified value
Clamping voltage
Endurance at upper
category temperature
|∆V/V (1 mA)|
≤10%
Surge current derating,
8/20
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
IEC 61051-1, test 4.9.2
Metal balls method, 2500 V
RMS
, 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.
No breakdown
Electric strength
Please read
Cautions and warnings
and
Important notes
at the end of this document.
Page 5 of 23
Embedded System
京公网安备 11010802033920号
EEWORLD
