S20K40 EPCOS Inc, S20K40 Datasheet - Page 33

• Manufacturer Part Number: S20K40
• Description: VARISTOR 40VRMS 20MM RADIAL
• Manufacturer: EPCOS Inc
• Series: StandarDr

Specifications of S20K40

• Varistor Voltage: 68V
• Current-surge: 2kA
• Number Of Circuits: 1
• Maximum Ac Volts: 40VAC
• Maximum Dc Volts: 56VDC
• Energy: 37J
• Package / Case: Disc 20mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72220S 400K101; B72220S0400K101; B72220S400K101

Derating curves
Maximum surge current i
For explanation of the derating curves refer to “General technical information”, section 1.8.1
SIOV-S20K510 … K1000
Please read Cautions and warnings and
Important notes at the end of this document.
i
max
10
10
10
10
10
10
A
5
5
5
5
_
4
3
2
1
0
1
10
1
max
5
= f (t
10
r
, pulse train)
10
10
1x
10
2
3
5
10
10
10
2
4
6
2
33
5
11/07
10
Leaded varistors
3
StandarD series
t
r
5
VAR0108-Y
t
i
µs
r
max
10
4