BY251 查看數據表（PDF） - Unspecified
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BY251 Datasheet PDF : 2 Pages
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RATINGS AND CHARACTERISTIC CURVES (BY251 THRU BY255)
FIG.1- MAXIMUM FORWARD CURRENT
DERATING CURVE
4
3
FIG.2- MAXIMUM FORWARD SURGE
150
CURRENT
NON-REPETITIVE
100
2
Single Phase
Half Wave 60Hz
1 Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
00
25
50
75
100 125
AMBIENT TEMPERATURE. (oC)
150 175
FIG.3- TYPICAL FORWARD CHARACTERISTICS
100
30
10
3.0
Tj=25oC
1.0
Pulse Width=300 s
1% Duty Cycle
50
Tj=25oC
8.3ms Single Half
Sine Wave
JEDEC Method
REPETITIVE
10 1
5
10
50
100
NUMBER OF CYCLES AT 60Hz
FIG.4- TYPICAL JUNCTION CAPACITANCE
100
50
Tj=250C
10
5
.1
.03
.01
.4
.6 .8 1.0 1.2 1.4
FORWARD VOLTAGE. (V)
1.6 1.8
1
1
5
10
50
100
REVERSE VOLTAGE. (V)
FIG.5- TYPICAL REVERSE CHARACTERISTICS
100
Tj=1000C
1.0
.1
Tj=250C
.01
0
20
40
60
80
100
120 140
PERCENT OF RATED PEAK REVERSE VOLTAGE. (%)
- 299-
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