BA157 查看數據表（PDF） - Leshan Radio Company,Ltd
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BA157 Datasheet PDF : 2 Pages
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BA157–BA159
LESHAN RADIO COMPANY, LTD.
RATING & CHARACTERISTIC CURVES OF FAST RECOVERY DIODES
FIG. 1 – FORWARD CURRENT
DERATING CURVE
1.0
0.8
0.6
0.4
0.2
0
0
Resistive or
Inductive Load
0.375”(9.5mm)
Lead Length
25 50 75 100 125 150 175
AMBIENT TEMPER ATURE, (ºC)
FIG. 3 – TYPICAL INSTANTANEOUS
FORWARD CHARACTERISTICS
20
10
FIG. 2 – MAXINUM NON-REPETITIVE
FOWARD SURGE CURRENT
20
TJ =55ºC
8.3ms Single Half Sine-Wave
(JEDEC Method)
15
10
5
0
1
10
100
NUMBER OF CYCLES AT 60Hz
FIG. 4 – TYPICAL REVERSE CHARACTERISTICS
10
TJ =25ºC
1.0
0.1
.01
.4
Pulse Width=300µs
1% Duty Cycle
.6
.8
1.0
1.2
1.4
1.6 1.8
INSTANTANEOUS FORWARD VOLTAGE,(V)
1.0
TJ =100ºC
.1
0.01
TJ =25ºC
0.001
0
20
40
60
80
100
PERCENT OF RATED PEAK REVERSE VOLTAGE, (%)
FIG. 5 – TYPICAL JUNCTION CAPACITANCE
100
TJ =25ºC
60
f = 1.0MHz
Vsig = 50mV p-p
40
FIG. 6 – TYPICAL TRANSIENT THERMAL IMPEDANCE
100
60
40
20
20
10
10
6
6
4
4
2
1
.1 .2 .4
1.0 2 4
10 20 40
100
REVERSE VOLTAGE,(V)
2
1 0.01
0.1
1
10
100
t, PULSE DURATION. (sec)
15A–2/2
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