Datasheet

VS-8EWS08S-M3, VS-8EWS12S-M3
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Vishay Semiconductors
Revision: 18-Dec-13
3
Document Number: 93383
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Fig. 1 - Current Rating Characteristics
Fig. 2 - Current Rating Characteristics
Fig. 3 - Forward Power Loss Characteristics
Fig. 4 - Forward Power Loss Characteristics
Fig. 5 - Maximum Non-Repetitive Surge Current
Fig. 6 - Maximum Non-Repetitive Surge Current
90
80
130
140
150
120
110
100
Maximum Allowable Case
Temperature (°C)
Average Forward Current (A)
2
10
12
468
0
30°
60°
90°
120°
180°
8EWS. Series
R
thJC
(DC) = 2.5 °C/W
90
140
150
130
120
110
100
Maximum Allowable Case
Temperature (°C)
Average Forward Current (A)
4268
16
18
10 12 14
0
DC
30°
60°
90°
120°
180°
8EWS. Series
R
thJC
(DC) = 2.5 °C/W
Ø
Conduction period
8
6
4
2
0
10
12
14
16
Maximum Average Forward
Power Loss (W)
Average Forward Current (A)
4268
10
0
RMS limit
180°
120°
90°
60°
30°
8EWS. Series
T
J
= 150 °C
Conduction angle
Ø
8
6
4
2
0
10
12
14
16
18
20
Maximum Average Forward
Power Loss (W)
Average Forward Current (A)
246
14
16
81012
0
DC
180°
120°
90°
60°
30°
RMS limit
8EWS. Series
T
J
= 150 °C
Ø
Conduction period
Peak Half Sine Wave
Forward Current (A)
Number of Equal Amplitude
Half Cycle Current Pulses (N)
1 10 100
30
40
50
60
70
80
90
100
110
120
130
140
VS-8EWS08S .. Series
At any rated load condition and with
rated V
rrm
applied following surge.
Initial T
J
= 150 °C
at 60 Hz 0.0083 s
at 50 Hz 0.0100 s
Peak Half Sine Wave
Forward Current (A)
Pulse Train Duration (s)
0.01 0.1 1 10
20
40
60
80
100
120
140
160
Maximum non-repetitive surge current
versus pulse train duration.
Initial T
J
= T
J
max.
No voltage reapplied
Rated V
rrm
reapplied
VS-8EWS08S .. Series