SIOV metal oxide varistors
Leaded varistors, SuperioR, S20 series
Series/Type:
Date:
S20
December 2007
Data Sheet
EPCOS AG 2008. Reproduction, publication and dissemination of this publication, enclosures
hereto and the information contained therein without EPCOS’ prior express consent is prohibited.
Leaded varistors
SuperioR, S20 series
Construction
■
Round varistor element, leaded
■
Coating: epoxy resin, flame-retardant to UL 94 V-0
■
Terminals: tinned copper wire
Features
■
■
■
■
High-energy SuperioR series E3
Very high surge current ratings of 12 kA
High energy ratings up to 320 J
PSpice models
Approvals
■
■
■
■
■
UL
CSA
CECC
VDE
IEC
Delivery mode
■
Bulk (standard), taped versions on reel or in Ammo pack upon request.
■
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
Response time
to IEC 60068-1
to CECC 42 000
to CECC 42 000
to CECC 42 000
40/85/56
– 40 … + 85
– 40 … +125
≥2.5
≥10
<25
°C
°C
kV
RMS
MΩ
ns
Please read
Cautions and warnings
and
Important notes
at the end of this document.
2
11/07
Leaded varistors
SuperioR, S20 series
Reliability data
Test
Varistor voltage
Test methods/conditions
Requirement
Clamping voltage
Max. AC operating voltage
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
To meet the specified value.
terminals with the specified standard
impulse current (8/20
µs)
applied.
CECC 42 000, test 4.20
|
∆V/V
(1 mA)
|
≤10%
1000 h at UCT
After having continuously applied
the maximum allowable 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.
CECC 42 000, test C 2.1
Surge current derating,
8/20
µs
|
∆V/V
(1 mA)
|
≤10%
100 surge currents (8/20
µs),
unipolar, (measured in direction
interval 30 s, amplitude corresponding of surge current)
to derating curve for 100 impulses at
No visible damage
20
µs
CECC 42 000, test C 2.1
100 surge currents (2 ms), unipolar,
interval 120 s, amplitude corresponding
to derating curve for 100 impulses at
2 ms
CECC 42 000, test 4.7
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 speci-
men connected together and the elec-
trode inserted between the metal balls.
Surge current derating,
2 ms
|
∆V/V
(1 mA)
|
≤10%
(measured in direction
of surge current)
No visible damage
No breakdown
Electric strength
Please read
Cautions and warnings
and
Important notes
at the end of this document.
5
11/07
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