BY251P thru BY255P
Vishay Semiconductors
for merly General Semiconductor
Document Number 88838 www.vishay.com
17-Dec-02 1
General Purpose Rectifiers Reverse Voltage
200 to 1300V
Forward Current 3.0A
Maximum Ratings & Thermal Characteristics Ratings at 25 °C ambient temperature unless otherwise specified.
Parameter Symbol BY251P BY252P BY253P BY254P BY255P Unit
Maximum repetitive peak reverse voltage VRRM 200 400 600 800 1300 V
Maximum RMS voltage VRMS 140 280 420 560 910 V
Maximum DC blocking voltage VDC 200 400 600 800 1300 V
Maximum average forward rectified current
10mm lead length at TA = 55 °C IF(AV) 3.0 A
Peak forward surge current 10ms single half sine-wave IFSM 150 A
superimposed on rated load (JEDEC Method)
Maximum full load reverse current, full cycle average
10mm lead length at TA = 55 °C IR(AV) 100 µA
Typical thermal resistance(1) RθJA 20
RθJL 10 °C/W
Operating junction and storage temperature range TJ, TSTG – 65 to +150 °C
Electrical Characteristics Ratings at 25 °C ambient temperature unless otherwise specified.
Maximum instantaneous forward voltage at 3.0A VF1.1 V
Maximum reverse current IR5.0 µA
at rated DC blocking voltage TA = 25°C
Typical reverse recover y time
IF = 0.5A, IR = 1.0V, Irr = 0.25A trr 3.0 µs
Typical junction capacitance at 4.0V, 1MHz CJ40 pF
Note: (1) Thermal resistance from junction to ambient and from junction to lead at 0.375” (9.5mm) lead length, P.C.B. mounted
Features
• Plastic package has Underwriters Laboratories
Flammability Classification 94V-0
• High surge current capability
• Typical IRless than 0.1 µA
•
Construction utilizes void-free molded plastic technique
•
3.0 Ampere operation at TA = 55 °C with no thermal
runaway
• High temperature soldering guaranteed:
250 °C/10 seconds, 0.375" (9.5 mm) lead length
5 lbs. (2.3 kg) tension
Mechanical Data
Case: JEDEC DO-201AD, molded plastic body
Terminals: Plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity: Color band denotes cathode end
Mounting Position: Any
Weight: 0.04 oz., 1.12 g
0.210 (5.3)
0.190 (4.8)
Dia.
0.052 (1.32)
0.048 (1.22)
Dia.
1.0 (25.4)
Min.
0.375 (9.5)
0.285 (7.2)
1.0 (25.4)
Min.
Dimensions in inches and (millimeters)
DO-201AD
BY251P thru BY255P
Vishay Semiconductors
for merly General Semiconductor
www.vishay.com Document Number 88838
217-Dec-02
Ratings and
Characteristic Curves(TA= 25°C unless otherwise noted)
025 50 75 100 125 150 175
0
1.0
2.0
3.0
4.0
110 100
10
100
200
0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3
10
100
1
0.1
110 100
10
100
020 40 60 80 100
0.01
0.1
1
10
Fig 1 - Forward Current Derating Curve
60 Hz
Resistive or
Inductive Load
Average Forward Rectified Current (A)
Peak Forward Surge Current (A)
Instantaneous Reverse Leakage Current ( A)
Fig 3 - Typical Instantaneous Forward
Characteristics
Fig 2 - Maximum Non-repetitive Peak
Forward Surge Current
Fig 2 - Maximum Non-repetitive Peak
Forward Surge Current
Fig 5 - Typical Junction Capacitance
TJ = 25°C
Pulse width = 300µs
1% Duty Cycle
TJ = 25°C
f = 1.0 MHz
Vsig = 50mVp-p
Instantaneous Forward Current (A)
Junction Capacitance (pF)
Ambient Temperature, ¡CNumber of Cycles at 60Hz
Percent of Rated Peak Reverse Voltage (%)
Instantaneous Forward Voltage (V)
Reverse Voltage (V)
TJ = 125°C
TJ = 75°C
TJ = 25°C
10mm lead length
8.3ms Single Half Sine-Wave
(JEDEC Method)
TA = 55°C
