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Dated : 20/06/2003
SEMTECH ELECTRONICS LTD.
(Subsidiary of Sino-Tech International Holdings Limited, a company
listed on the Hong Kong Stock Exchange, Stock Code: 724)
®
Fig.3-TYPICAL INSTANTANEOUS FORWARD
CHARACTERISTICS
INSTANTANEOUS FORWARD VOLTAGE
VOLTS
0.4
0.01
0.6 0.8
0.1
1
10
20
1.6
1.2
1.0
1.4
2.0
1.8
o
AMBIENT TEMPERATURE, ( C)
FIG.1-FORWARD CURRENT DERATING CURVE
0.4
25
0
0
0.2
0.6
0.8
1.0
50
75
100
125
150
175
o
Fig.2- MAXIMUM NON-REPETITIVE PEAK FORWARD
SURGE CURRENT
NUMBER OF CYCLES AT 60 Hz
0
5
1
15
25
35
10
100
TJ=55 C
8.3ms Single Half
Sine-Wave
o
Tj=25 C
Pulse Width=300 S
1% Duty Cycle
BA157 THRU BA159
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