S20K320 EPCOS Inc, S20K320 Datasheet - Page 33

• Manufacturer Part Number: S20K320
• Description: VARISTOR 320V RMS 20MM RADIAL
• Manufacturer: EPCOS Inc
• Series: StandarDr

Specifications of S20K320

• Varistor Voltage: 510V
• Current-surge: 8kA
• Number Of Circuits: 1
• Maximum Ac Volts: 320VAC
• Maximum Dc Volts: 420VDC
• Energy: 184J
• Package / Case: Disc 20mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 495-1418; B72220S 321K101; B72220S0321K101; B72220S321K101

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