BA157 thru BA159
Document Number 88536
10-Oct-05
Vishay General Semiconductor
www.vishay.com
1
DO-204AL (DO-41)
Fast Switching Plastic Rectifier
Major Ratings and Characteristics
IF(AV) 1.0 A
VRRM 50 V to 600 V
IFSM 20 A
trr 150 ns, 250 ns, 500 ns
IR5.0 µA
VF1.3 V
Tj max. 125 °C
Features
• Fast switching for high efficiency
• Low forward voltage drop
• Low leakage current
• High forward surge capability
• Solder Dip 260 °C, 40 seconds
Typical Applications
For use in fast switching rectification of power supply,
inverters, converters and freewheeling diodes for
consumer and Telecommunication.
(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.)
Mechanical Data
Case: DO-204AL, molded epoxy body
Epoxy meets UL-94V-0 Flammability rating
Terminals: Matte tin plated (E3 Suffix) leads, solder-
able per J-STD-002B and JESD22-B102D
Polarity: Color band denotes cathode end
Maximum Ratings
(TA = 25 °C unless otherwise noted)
Parameter Symbol BA157 BA158 BA159D BA159 Unit
Maximum repetitive peak reverse voltage VRRM 400 600 800 1000 V
Maximum RMS voltage VRMS 280 420 560 700 V
Maximum DC blocking voltage VDC 400 600 800 1000 V
Maximum average forward rectified current 0.375" (9.5 mm) lead length
at TA = 55 °C
IF(AV) 1.0 A
Peak forward surge current 10 ms single half sine-wave superimposed on
rated load
IFSM 20 A
Maximum operation junction temperature TJ - 65 to + 125 °C
Maximum storage temperature TSTG - 65 to + 150 °C
www.vishay.com
2
Document Number 88536
10-Oct-05
BA157 thru BA159
Vishay General Semiconductor
Electrical Characteristics
(TA = 25 °C unless otherwise noted)
Ratings and Characteristics Curves
(TA = 25 °C unless otherwise noted)
Parameter Test condition Symbol BA157 BA158 BA159D BA159 Unit
Maximum instantaneous forward
voltage
at 1.0 A VF 1.3 V
Maximum DC reverse current at
rated DC blocking voltage
TA = 25 °C IR 5.0 µA
Maximum reverse recovery time at IF = 0.5 A, IR = 1.0 A, Irr = 0.25 A trr 150 250 500 ns
Typical junction capacitance at 4.0 V, 1 MHz CJ 12 pF
Figure 1. Forward Current Derating Curve
Figure 2. Maximum Non-repetitive Peak Forward Surge Current
Ambient Temperature ( °C)
Average Forward Current (A)
025 50 75 100 125 150 175
0
0.2
0.4
0.6
0.8
1.0
60 Hz
Resistive or
Inductive Load
0.375” (9.5 mm) Lead Length
Peak Forward Surge Current (A)
110 100
0
5
10
15
20
TJ = 55 °C
8.3 ms Single Half Sine-Wave
Number of Cycles at 60 Hz
Figure 3. Typical Instantaneous Forward Characteristics
Figure 4. Typical Reverse Characteristics
InstantaneousForward Voltage (V)
InstantaneousForward Current (A)
0.4 0.6 1.0 1.2 1.4 1.6 2.0
0.01
0.1
1
10
20
0.81.8
TJ = 25 °C
Pulse Width = 300 µs
1% Duty Cycle
Percent of Rated Peak Reverse Voltage (%)
20 60 80100
0.01
1
10
100
0.1
40
0
Instantaneous Reverse Current (µA)
TJ = 100 °C
TJ = 25 °C
BA157 thru BA159
Document Number 88536
10-Oct-05
Vishay General Semiconductor
www.vishay.com
3
Package outline dimensions in inches (millimeters)
Figure 5. Typical Junction Capacitance
Reverse Voltage (V)
Junction Capacitance (pF)
0.1 110 100
1
10
100
TJ = 25 °C
f = 1.0 MHz
Vsig = 50mVp-p
Figure 6. Typical Transient Thermal Impedance
t, Pulse Duration (sec.)
Transient Thermal Impedance ( °CW)
0.01 0.1 110 100
0.1
1
10
100
0.107 (2.7)
0.080 (2.0)
0.034 (0.86)
0.028(0.71)
DIA.
1.0 (25.4)
MIN.
1.0 (25.4)
MIN.
0.205 (5.2)
0.160 (4.1)
DIA.
DO-204AL (DO-41)
NOTE: Lead diameter is for suffix “E” part numbers
0.026 (0.66)
0.023 (0.58)
Legal Disclaimer Notice
Vishay
Document Number: 91000 www.vishay.com
Revision: 08-Apr-05 1
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.
