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BY251P Datasheet, PDF (2/2 Pages) Vishay Siliconix – General Purpose Rectifiers
BY251P thru BY255P
Vishay Semiconductors
formerly General Semiconductor
Ratings and
Characteristic Curves (TA = 25°C unless otherwise noted)
Fig 1 - Forward Current Derating Curve
4.0
60 Hz
Resistive or
3.0
Inductive Load
2.0
Fig 2 - Maximum Non-repetitive Peak
Forward Surge Current
200
8.3ms Single Half Sine-Wave
(JEDEC Method)
100
TA = 55°C
1.0
10mm lead length
0
0 25 50 75 100 125 150 175
Ambient Temperature, ¡C
Fig 3 - Typical Instantaneous Forward
Characteristics
100
TJ = 25°C
Pulse width = 300µs
1% Duty Cycle
10
1
10
1
10
100
Number of Cycles at 60Hz
Fig 2 - Maximum Non-repetitive Peak
Forward Surge Current
10
TJ = 125°C
1
TJ = 75°C
0.1 TJ = 25°C
0.1
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
Instantaneous Forward Voltage (V)
Fig 5 - Typical Junction Capacitance
100
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
0.01
0
20
40
60
80
100
Percent of Rated Peak Reverse Voltage (%)
10
1
10
100
Reverse Voltage (V)
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2
Document Number 88838
17-Dec-02