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V22CH8_10 Datasheet, PDF (3/6 Pages) Littelfuse – Surface Mount Varistors
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Varistor Products
Surface Mount Varistors > CH Series
Peak Pulse Current Test Waveform
100
90
50
10
O1
Figure 2
T
T1
T2
TIME
Clamping Voltage for V22CH8 – V68CH8
500
400 MAXIMUM CLAMPING VOLTAGE
300 MODEL SIZE 5 x 8mm
22 TO 56VN(DC) RATING
200 TA = -55oC TO 125oC
100
90
80
V68CH8
70 V56CH8
60 V47CH8
50 V39CH8
40
V33CH8
V27CH8
30 V22CH8
20
10
10-3
Figure 3
10-2
10-1
100
101
PEAK AMPERES (A)
102
103
01 = Virtual Origin of Wave
T = Time from 10% to 90% of Peak
T1 = Rise Time = 1.25 x T
T2 = Decay Time
Example:
For an 8/20 μs Current Waveform:
8μs = T1 = Rise Time
20μs = T2 = Decay Time
Clamping Voltage for V120CH8 – V430CH8
4,000
3,000
2,000
1,000
900
800
700
600
500
400
MAXIMUM CLAMPING VOLTAGE
MODEL SIZE 5 x 8mm
1T0A0=T-O554o3C0VTON(D12C5) oRCATING
V240CH8
V220CH8
V200CH8
V430CH8
V390CH8
V360CH8
300
200
V180CH8
V150CH8
V120CH8
100
10-3
Figure 4
10-2 10-1
100
101
102
PEAK AMPERES (A)
103 104
Pulse Rating Curves
Surge Current Rating Curves for V22CH8 - V56CH8
Surge Current Rating Curves for V120CH8 - V430CH8
500
1
200 2
100 10
50 102
103
20
10
5
MODEL SIZE 5 x 8mm
V22CH8 - V56CH8
104
105
106
2 INDEFINITE
1
0.5
0.2
Figure 5 20
100
1,000
IMPULSE DURATION (μs)
10,000
2,000
1,000
500 1
2
200
10
100
50
MODEL SIZE 5 x 8mm
V120CH8 - V430CH8
102
103
104
105
20 106
10
5
INDEFINITE
2
1
20
Figure 6
100
1,000
IMPULSE DURATION (μs)
10,000
NOTE: If pulse ratings are exceeded, a shift of VN(DC) (at specified current) of more than +/-10% could result. This type of shift, which normally results in a decrease of VN(DC), may result in
the device not meeting the original published specifications, but it does not prevent the device from continuing to function, and to provide ample protection.
©2010 Littelfuse, Inc.
Specifications are subject to change without notice.
Please refer to www.littelfuse.com/series/CH.html for current information.
Revision: August 30, 2010
CH Varistor Series
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