S20K250 EPCOS Inc, S20K250 Datasheet - Page 16

• 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
B72205S0251K101
B72207S0251K101
B72210S0251K101
B72214S0251K101
B72220S0251K101
B72205S0271K101
B72207S0271K101
B72210S0271K101
B72214S0271K101
B72220S0271K101
B72205S0301K101
B72207S0301K101
B72210S0301K101
B72214S0301K101
B72220S0301K101
B72210S0321K101
B72214S0321K101
B72220S0321K101
B72205S0381K101
B72207S0381K101
B72210S0381K101
B72214S0381K101
B72220S0381K101
B72205S0421K101
B72207S0421K101
B72210S0421K101
B72214S0421K101
B72220S0421K101
B72205S0441K101
B72207S0441K101
B72210S0441K101
B72214S0441K101
B72220S0441K101
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
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
1.8
1.8
2.0
2.0
2.2
2.0
2.0
2.2
2.2
2.3
2.1
2.1
2.3
2.3
2.4
2.4
2.4
2.6
2.5
2.5
2.7
2.7
2.8
2.8
2.8
2.9
2.9
3.1
2.8
2.8
3.0
3.0
3.1
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
16
11/07
s
mm
4.2
4.2
4.8
4.8
5.3
4.3
4.4
5.0
5.0
5.4
4.5
4.5
5.1
5.2
5.6
5.4
5.4
5.8
5.1
5.2
5.8
5.9
6.3
5.4
5.4
6.1
6.1
6.5
5.5
5.5
6.2
6.3
6.7
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
15.0
19.0
25.5
11.5
15.0
19.0
26.0
11.5
15.0
19.0
26.0
11.5
15.0
19.0
26.0
max
8.5
8.5
8.5
9.0
9.0
9.0
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
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
0.8
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