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BAT54WS
Vishay High Power Products
Schottky Diode, 0.2 A
1
(A)
2
(K)
SOD-323
PRODUCT SUMMARY
IF(AV)
VR
0.2 A
30 V
FEATURES
• Small foot print, surface mountable
• Very low forward voltage drop
• Extremely fast switching speed for high frequency
operation
• Guard ring for enhanced ruggedness and long term
reliability
• Designed and qualified for industrial level
DESCRIPTION
This Schottky barrier diode is designed for high speed
switching applications, voltage clamping and circuit
protection. Miniature surface mount packages with reduced
foot print are excellent for portable applications where space
is limited.
MAJOR RATINGS AND CHARACTERISTICS
SYMBOL
CHARACTERISTICS
IF
VRRM
DC
IFSM
tp = 10 ms sine
VF 30 mA DC, TJ = 25 °C
Pd Power dissipation at TA = 25 °C
TJ Range
VALUES
0.2
30
1.0
0.5
200
- 65 to 150
UNITS
A
V
A
V
mW
°C
VOLTAGE RATINGS
PARAMETER
Maximum DC reverse voltage
Maximum working peak reverse voltage
SYMBOL
VR
VRWM
BAT54WS
30
UNITS
V
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
Forward current
IF
Maximum peak one cycle
non-repetitive surge current
at TJ = 25 °C
IFSM
TEST CONDITIONS
VALUES
DC 0.2
5 µs sine or 3 µs rect. pulse
10 ms sine or 6 ms rect. pulse
Following any rated load
condition and with rated
VRRM applied
8.4
1.0
UNITS
A
Document Number: 93428
Revision: 18-Jun-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
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BAT54WS
Vishay High Power Products Schottky Diode, 0.2 A
ELECTRICAL SPECIFICATIONS
PARAMETER
SYMBOL
Maximum forward voltage drop
VFM (1)
Maximum reverse leakage current
IRM (1)
Maximum junction capacitance
Maximum voltage rate of change
Note
(1) Pulse width < 300 µs, duty cycle < 2 %
CT
dV/dt
TEST CONDITIONS
0.1 A
30 mA
10 mA
1 mA
0.1 mA
TJ = 25 °C
VR = 25 V
VR = 30 V
VR = 1 VDC (test signal range 100 kHz to 1 MHz), TJ = 25 °C
Rated VR
VALUES
0.65
0.50
0.40
0.32
0.24
2
3
10
10 000
UNITS
V
µA
pF
V/µs
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER
SYMBOL
TEST CONDITIONS
Maximum junction and storage
temperature range
Maximum thermal resistance,
junction to ambient
TJ (1), TStg
RthJA
Mounted on PC board FR4 with minimum pad size
Approximate weight
Marking device
Case style SOD-323
Note
(1) d----P-----t-o---t < ------1-------- thermal runaway condition for a diode on its own heatsink
dTJ RthJA
VALUES
- 65 to 150
UNITS
°C
635 °C/W
0.004
g
DYWL
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 93428
Revision: 18-Jun-08

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Schottky Diode, 0.2 A
BAT54WS
Vishay High Power Products
1
0.1
0.01
0.001
TJ = 150 °C
TJ = 125 °C
TJ = 25 °C
0.0001
0
0.2 0.4 0.6 0.8 1.0
VFM - Forward Voltage Drop (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
(Per Leg)
1
0.1
0.01
0.001
0.0001
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 75 °C
TJ = 50 °C
TJ = 25 °C
0.00001
0
5 10 15 20 25 30
VR - Reverse Voltage (V)
Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage (Per Leg)
10
10
TJ = 25 °C
1
0 5 10 15 20 25 30
VR - Reverse Voltage (V)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
(Per Leg)
0.4
D = 0.20
D = 0.25
D = 0.33
0.3 D = 0.50
D = 0.75
0.2
RMS limit
0.1
DC
0
0 0.1 0.2 0.3
IF(AV) - Average Forward Current (A)
Fig. 4 - Forward Power Loss Characteristics
Document Number: 93428
Revision: 18-Jun-08
1
At any rated load condition
and with rated VRRM applied
following surge
0.1
10
100
1000
10 000
tp - Square Wave Pulse Duration (µs)
Fig. 5 - Maximum Non-Repetitive Surge Current
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com
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BAT54WS
Vishay High Power Products Schottky Diode, 0.2 A
ORDERING INFORMATION TABLE
DEVICE
PACKAGE
BAT54WS
SOD-323
MARKING
DYWL
BASE QUANTITY
3000
DELIVERY MODE
Tape and reel
Dimensions
Packaging information
LINKS TO RELATED DOCUMENTS
http://www.vishay.com/doc?95051
http://www.vishay.com/doc?95061
www.vishay.com
4
For technical questions, contact: diodes-tech@vishay.com
Document Number: 93428
Revision: 18-Jun-08

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Disclaimer
Legal Disclaimer Notice
Vishay
All product specifications and data are subject to change without notice.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf
(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any
information provided herein to the maximum extent permitted by law. The product specifications do not expand or
otherwise modify Vishay’s terms and conditions of purchase, including but not limited to the warranty expressed
therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
document or by any conduct of Vishay.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless
otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such
applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting
from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding
products designed for such applications.
Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 18-Jul-08
www.vishay.com
1