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BY251P-E3 Datasheet, PDF (2/4 Pages) Vishay Siliconix – General Purpose Plastic Rectifier
BY251P thru BY255P
Vishay General Semiconductor
THERMAL CHARACTERISTICS (TA = 25 °C unless otherwise noted)
PARAMETER
SYMBOL BY251P BY252P BY253P BY254P BY255P
RθJA (1)
20
Typical thermal resistance
RθJL (1)
10
Note
(1) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5 mm) lead length, P.C.B. mounted
UNIT
°C/W
ORDERING INFORMATION (Example)
PREFERRED P/N
UNIT WEIGHT (g) PREFERRED PACKAGE CODE
BY253P-E3/54
1.1
54
BY253P-E3/73
1.1
73
BASE QUANTITY
1400
1000
DELIVERY MODE
13" diameter paper tape and reel
Ammo pack packaging
RATINGS AND CHARACTERISTICS CURVES
(TA = 25 °C unless otherwise noted)
4.0
60 Hz Resistive
or Inductive Load
3.0
2.0
1.0
10 mm Lead Length
0
0
25 50 75 100 125 150 175
Ambient Temperature (°C)
Fig. 1 - Forward Current Derating Curve
1000
8.3 ms Single Half Sine-Wave
100
TA = 55 °C
10
TJ = 125 °C
1
TJ = 75 °C
0.1
TJ = 25 °C
0.01
0
20
40
60
80
100
Percent of Rated Peak Reverse Voltage (%)
Fig. 3 - Maximum Non-repetitive Peak Forward Surge Current
100
TJ = 25 °C
Pulse Width = 300 μs
1 % Duty Cycle
10
1
0
1
10
100
Number of Cycles at 60 Hz
Fig. 2 - Maximum Non-repetitive Peak Forward Surge Current
0.1
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
Instantaneous Forward Voltage (V)
Fig. 4 - Typical Instantaneous Forward Characteristics
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For technical questions within your region, please contact one of the following: Document Number: 88838
DiodesAmericas@vishay.com, DiodesAsia@vishay.com, DiodesEurope@vishay.com
Revision: 04-Nov-09