BY251P thru BY255P
Vishay General Semiconductor
General Purpose Plastic Rectifier
Major Ratings and Characteristics
I
F(AV)
V
RRM
I
FSM
I
R
V
F
T
j
max.
3.0 A
200 V to 1300 V
150 A
5.0 µA
1.1 V
150 °C
DO-201AD
Features
•
•
•
•
Low forward voltage drop
Low leakage current, I
R
less than 0.1 µA
High forward surge capability
Solder Dip 260 °C, 40 seconds
Mechanical Data
Case:
DO-201AD, molded epoxy body
Epoxy meets UL-94V-0 Flammability rating
Terminals:
Matte tin plated (E3 Suffix) leads,
solderable per J-STD-002B and JESD22-B102D
Polarity:
Color band denotes cathode end
Typical Applications
For use in general purpose rectification of power sup-
plies, inverters, converters and freewheeling diodes
application.
(Note: These devices are not Q101 qualified. There-
fore, the devices specified in this datasheet have not
been designed for use in automotive or Hi-Rel appli-
cations.)
Maximum Ratings
(T
A
= 25 °C unless otherwise noted)
Parameter
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current 10 mm lead length
Peak forward surge current 10 ms single half sine-wave
superimposed on rated load
Maximum full load reverse current, full cycle average 10 mm
lead length
Operating junction and storage temperature range
Symbol
V
RRM
V
RMS
V
DC
I
F(AV)
I
FSM
I
R(AV)
T
J
, T
STG
BY251P BY252P BY253P BY254P BY255P
200
140
200
400
280
400
600
420
600
3.0
150
100
- 55 to + 150
800
560
800
1300
910
1300
Unit
V
V
V
A
A
µA
°C
Document Number 88838
15-Sep-05
www.vishay.com
1
BY251P thru BY255P
Vishay General Semiconductor
Electrical Characteristics
(T
A
= 25 °C unless otherwise noted)
Parameter
Maximum instantaneous
forward voltage
Maximum reverse current at
rated DC blocking voltage
Typical reverse recovery time
Typical junction capacitance
at 3.0 A
T
A
= 25 °C
I
F
= 0.5 A, I
R
= 1.0 V,
I
rr
= 0.25 A
at 4.0 V, 1 MHz
Test condition
Symbol
V
F
I
R
t
rr
C
J
BY251P BY252P BY253P BY254P BY255P
1.1
5.0
3.0
40
Unit
V
µA
µs
pF
Thermal Characteristics
(T
A
= 25 °C unless otherwise noted)
Parameter
Typical thermal resistance
(1)
Notes:
(1) Thermal resistance from junction to ambient and from junction to lead at 0.375" (9.5 mm) lead length, P.C.B. mounted
Symbol
R
θJA
R
θJL
BY251P BY252P BY253P BY254P BY255P
20
10
Unit
°C/W
Ratings and Characteristics Curves
(T
A
= 25
°C
unless otherwise noted)
4.0
200
Average Forward Rectified Current (A)
Peak Forward Surge Current (A)
60 Hz
Resistive or
Inductive Load
3.0
8.3
ms Single Half Sine/Wave
100
T
A
= 55 °C
2.0
1.0
10 mm lead length
0
0
25
50
75
100
125
150
175
0
1
10
100
Ambient Temperature (°C)
Number
of Cycles at 60Hz
Figure 1. Forward Current Derating Curve
Figure 2. Maximum Non-repetitive Peak Forward Surge Current
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Document Number 88838
15-Sep-05
BY251P thru BY255P
Vishay General Semiconductor
Instantaneous Reverse Leakage Current ( A)
10
T
J
= 125 °C
100
T
J
= 25 °C
f = 1.0 MHz
V
sig
= 50mVp-p
1
T
J
= 75 °C
0.1
T
J
= 25 °C
0.01
0
20
40
60
80
100
Junction Capacitance (pF)
10
1
10
100
Percent of Rated Peak Reverse
Voltage
(%)
Reverse
Voltage
(V)
Figure 3. Maximum Non-repetitive Peak Forward Surge Current
Figure 5. Typical Junction Capacitance
100
Instantaneous Forward Current (A)
T
J
= 25 °C
Pulse
width
= 300
µs
1% Duty Cycle
10
1
0.1
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
Instantaneous Forward
Voltage
(V)
Figure 4. Typical Instantaneous Forward Characteristics
Package outline dimensions in inches (millimeters)
DO-201AD
1.0 (25.4)
Min.
0.210 (5.3)
0.190 (4.8)
Dia.
0.375 (9.5)
0.285 (7.2)
1.0 (25.4)
Min.
0.052 (1.32)
0.048 (1.22)
Dia.
Document Number 88838
15-Sep-05
www.vishay.com
3
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
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