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Shanghai Shanglang Electronic
Technology Co.,Ltd
Tel:0086-21-37185008
Fax:0086-21-57152769
Features
• Halogen free available upon request by adding suffix "-HF"
• Low Current Leakage and Low Forward Voltage
• Lead Free Finish/RoHS Compliant(Note 1) ("P" Suffix designates
• Epoxy meets UL 94 V-0 flammability rating
• Moisture Sensitivity Level 1
Maximum Ratings
• Operating Temperature: -55°C to +150°C
• Storage Temperature: -55°C to +150°C
• Maximum Thermal Resistance; 30°C/W Junction To Lead
RoHS Compliant.)
Maximum
Catalog
Number
BY251 200V 140V 200V
BY252 400V 280V 400V
BY253 600V 420V 600V
BY254 800V 560V 800V
BY255 1300V 910V 1300V
Device
Marking
BY251
BY252
BY253
BY254
BY255
Recurrent
Peak
Reverse
Voltage
Maximum
RMS
Voltage
Maximum
DC
Blocking
Voltage
BY251
THRU
BY255
3 Amp Rectifier
200 - 1300 Volts
DO-201AD
Electrical Characteristics @ 25°C Unless Otherwise Specified
Average Forward
Current
Peak Forward Surge
Current
Forward Voltage
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
Typical Junction
Capacitance
Notes:1.High Temperature Solder Exemption Applied, see EU Directive Annex 7.
I
F(AV)
I
FSM
V
F
I
R
C
J
3.0A
200A 8.3ms, half sine
1.1V
10µA
500µA
30pF Measured at
www.
Ta = 105°C
IF= 3.0A;
T
= 25°C
a
Ta= 25°C
Ta= 100°C
1.0MHz, VR=4.0V
cnelectr
.net
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BY251 thru BY255
Figure 1
Typical Forward Characteristics
200
100
(A)
T = 25ºC
j
Figure 2
Forward Derating Curve
3.0
2.5
CURRENT
10
FORWARD
1.0
F
I , INSTANTANEOUS
0.2
0.4 0.8 1.2 1.6 2.0 2.4 2.8
Instantaneous Forward Current - Amperes versus
Instantaneous Forward Voltage - Volts
Figure 3
Junction Capacitance
100
60
40
Pulse test: Pulse width 300 µsec,
Duty cycle 2%
3.2
Amps
2
1.5
1.0
.5
Single Phase, Half Wave
60Hz Resistive or Inductive Load
0
0
°C
Average Forward Rectified Current - Amperes versus
Ambient Temperature - °C
150
17550 75 100 125
pF
20
T
=25°C
10
6
4
2
1
.1 .2 1.4 2 10 20
www.
J
Volts
Junction Capacitance - pF versus
Reverse Voltage - Volts
cnelectr
404 100
.net
200
400 1000
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BY251 thru BY255
Figure 4
Typical Reverse Characteristics
100
O
T=150C
10
µAmps
1.0
0.1
0.01
J
O
T = 100 C
J
O
T=25C
J
20 40 60 80 100 120 140
Volts
Instantaneous Reverse Leakage Current - MicroAmperes versus
Percent Of Rated Peak Reverse Voltage - Volts
Amps
Figure 5
Peak Forward Surge Current
300
250
200
150
100
50
0
1 100
4
6 10 20
2
8
40
60
Cycles
Peak Forward Surge Current - Amperes versus
Number Of Cycles At 60Hz - Cycles
80
www.
cnelectr
.net
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