V38CP16 Просмотр технического описания (PDF) - Littelfuse, Inc
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V38CP16 Datasheet PDF : 6 Pages
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CP Series
Device Leakage Current
25oC
LEAKAGE CURRENT AT VT(DC)
125oC
MODEL
NUMBER
PART SIZE
IL TYP
(µA)
IL MAX
(µA)
IL TYP
(µA)
IL MAX
(µA)
V T(DC)
(V)
V8CP22
22B
0.5
5.0
5.0
50
8
V14CP22
22B
0.5
5.0
5.0
50
14
V31CP22
22B
0.5
5.0
5.0
50
28
V38CP22
22B
0.5
5.0
5.0
50
36
V130CP22
22A
0.5
5.0
25.0
100
130
V150CP22
22A
0.5
5.0
25.0
100
150
V31CP20
20B
0.5
5.0
5.0
50
28
V38CP20
20B
0.5
5.0
5.0
50
36
V130CP20
V150CP20
V38CP16
V130CP16
V150CP16
OBSOLETE 20A
0.5
20A
0.5
16A
0.5
16A
0.5
16A
0.5
5.0
25.0
100
130
5.0
25.0
100
150
5.0
5.0
50
36
5.0
25.0
100
130
5.0
25.0
100
150
Power Dissipation Ratings
1.
PART Should transients occur in rapid succession, the average
100
power dissipation required is simply the energy (watt-
90
seconds) per pulse times the number of pulses per second.
80
The power so developed must be within the specifications
70
shown on the Device Ratings and Specifications table for the
60
specific device. Furthermore, the operating values need to
50
be derated at high temperatures as shown in Figure 1.
40
Because varistors can only dissipate a relatively small
amount of average power they are, therefore, not suitable for
repetitive applications that involve substantial amounts of
average power dissipation.
30
20
10
0
-55 50 60 70 80 90 100 110 120 130 140 150
AMBIENT TEMPERATURE (oC)
FIGURE 1. CURRENT, ENERGY AND POWER DERATING
CURVE
100
90
O1 = Virtual Origin of Wave
T = Time From 10% to 90% of Peak
T1 = Virtual Front time = 1.25 • t
T2 = Virtual Time to Half Value (Impulse Duration)
50
Example: For an 8/20µs Current Waveform:
8µs = T1 = Virtual Front Time
20µs = T2 = Virtual Time to Half Value
10
O1
T
T1
T2
TIME
FIGURE 2. PEAK PULSE CURRENT TEST WAVEFORM
4-84
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