S20K25 EPCOS Inc, S20K25 Datasheet - Page 28

• Manufacturer Part Number: S20K25
• Description: VARISTOR 25VRMS 20MM RADIAL
• Manufacturer: EPCOS Inc
• Series: StandarDr

Specifications of S20K25

• Package / Case: Disc 20mm
• Number Of Circuits: 1
• Energy: 22J
• Current-surge: 2kA
• Maximum Ac Volts: 25Vrms
• Maximum Dc Volts: 31VDC
• Varistor Voltage: 39V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72220S 250K101::B72220S0250K101::B72220S250K101

Derating curves
Maximum surge current i
For explanation of the derating curves refer to “General technical information”, section 1.8.1
i
SIOV-S10K11 … K40
SIOV-S10K50 … K320
Please read Cautions and warnings and
Important notes at the end of this document.
i
max
max
10
10
10
10
10
10
10
10
10
10
10
10
5
A
5
5
5
A
5
5
5
5
_
_
_
3
0
1
2
2
1
4
3
0
10
2
1
1
10
1
1
Leaded varistors
StandarD series
max
5
5
= f (t
10
10
r
, pulse train)
10
10
10
10
1x
10
1x
10
2
2
3
5
3
5
10
10
10
10
10
10
2
2
2
4
6
2
4
6
28
5
5
11/07
10
10
3
3
t
t
r
r
5
5
VAR0100-3
VAR0101-B
t
t
i
i
µs
r
µs
r
max
max
10
10
4
4