S20K320E3 EPCOS Inc, S20K320E3 Datasheet - Page 9

• Manufacturer Part Number: S20K320E3
• Description: VARISTOR 320VRMS 20MM RADIAL
• Manufacturer: EPCOS Inc
• Series: SuperioRr

Specifications of S20K320E3

• Varistor Voltage: 510V
• Current-surge: 12kA
• Number Of Circuits: 1
• Maximum Ac Volts: 320VAC
• Maximum Dc Volts: 420VDC
• Energy: 320J
• Package / Case: Disc 20mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: B72220S3321K101

Derating curves
Maximum surge current i
For explanation of the derating curves refer to “General technical information”, section 1.8.1
SIOV-S20 … E3
Please read Cautions and warnings and
Important notes at the end of this document.
i
max
10
10
10
10
10
10
10
A
5
5
5
5
5
_
5
4
3
2
0
10
1
1
1
max
5
= f (t
10
r
, pulse train)
2
1x
2
10
10
10
10
10
10
2
3
4
5
6
9
5
11/07
SuperioR, S20 series
10
Leaded varistors
3
t
r
5
VAR0453-X
t
r
µs
i
max
10
4