S20K250 EPCOS Inc, S20K250 Datasheet - Page 14

• Manufacturer Part Number: S20K250
• Description: VARISTOR 250VRMS 20MM RADIAL
• Manufacturer: EPCOS Inc
• Series: StandarDr

Specifications of S20K250

• Energy: 140J
• Varistor Voltage: 390V
• Current-surge: 8kA
• Number Of Circuits: 1
• Maximum Ac Volts: 250VAC
• Maximum Dc Volts: 320VDC
• Package / Case: Disc 20mm
• Technology: Metal Oxide
• Capacitance Value: 700pF
• Clamping Current: 100A
• Clamping Voltage: 650V
• Lead Style: Radial
• Ac Voltage Rating (max): 250VAC
• Dc Voltage Rating (max): 320VDC
• Operating Temp Range: -40C to 85C
• Mounting: Through Hole
• Surge Current (max): 8000A
• Lead Spacing: 10mm
• Product Depth (mm): 5.3mm
• Product Height (mm): 25.5mm
• Product Diameter (mm): 21.5mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 495-2404; B72220S 251K101; B72220S0251K101; B72220S251K101; B72220S251K101V57; S20K250

Dimensions
Ordering code
B72205S0250K101
B72207S0250K101
B72210S0250K101
B72214S0250K101
B72220S0250K101
B72205S0300K101
B72207S0300K101
B72210S0300K101
B72214S0300K101
B72220S0300K101
B72205S0350K101
B72207S0350K101
B72210S0350K101
B72214S0350K101
B72220S0350K101
B72205S0400K101
B72207S0400K101
B72210S0400K101
B72214S0400K101
B72220S0400K101
B72205S0500K101
B72207S0500K101
B72210S0500K101
B72214S0500K101
B72220S0500K101
B72205S0600K101
B72207S0600K101
B72210S0600K101
B72214S0600K101
B72220S0600K101
B72205S0750K101
B72207S0750K101
B72210S0750K101
B72214S0750K101
B72220S0750K101
Please read Cautions and warnings and
Important notes at the end of this document.
Leaded varistors
StandarD series
mm
10.0
10.0
10.0
10.0
10.0
10.0
10.0
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
5.0
5.0
7.5
7.5
±1
a ±1
mm
1.3
1.3
1.6
1.7
1.8
1.5
1.5
1.7
1.8
2.0
1.6
1.6
1.8
2.0
2.2
1.8
1.8
2.1
2.2
2.4
1.2
1.2
1.4
1.4
1.5
1.2
1.2
1.4
1.5
1.6
1.3
1.3
1.5
1.5
1.6
b
mm
12.0
15.5
21.5
12.0
15.5
21.5
12.0
15.5
21.5
12.0
15.5
21.5
12.0
15.5
21.5
12.0
15.5
21.5
12.0
15.5
21.5
max
7.0
9.0
7.0
9.0
7.0
9.0
7.0
9.0
7.0
9.0
7.0
9.0
7.0
9.0
14
11/07
s
mm
3.6
3.7
4.2
4.2
4.7
3.6
3.7
4.4
4.4
4.9
3.7
3.9
4.4
4.5
5.1
3.9
4.1
4.8
4.9
5.4
3.3
3.3
3.9
3.9
4.3
3.3
3.3
4.0
4.0
4.4
3.4
3.6
4.2
4.2
4.6
max
h
mm
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
11.0
14.5
18.5
25.5
max
8.5
8.5
8.5
8.5
8.5
8.5
8.5
I
mm
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
25.0
min
d ±0.05
mm
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0
0.6
0.6
0.8
0.8
1.0