Page 1
BAT54SWT1G/BAT54CWT1G
Schottky Diodes
3
Connection Diagram
3
BAT54CWT1GBAT54SWT1G
3
BAT54SWT1G/BAT54CWT1G Schottky Diodes
April 2005
SOT-323
Absolute Maximum Ratings *
12
MARKING
BAT54SWT1G = YB
BAT54CWT1G = YC
Ta = 25°C unless otherwise noted
2
1
1
Symbol Parameter Value Unit
V
RRM
I
F(AV)
I
FSM
T
STG
T
J
* These ratings are limiting values above which the serviceability of any semiconductor device may be impaired.
Maximum Repetitive Reverse Voltage 30 V
Average Rectified Forward Current 200 mA
Non-repetitive Peak Forward Surge Current
600 mA
Pulse Width = 1.0 second
Storage Temperature Range -65 to +125 °C
Operating Junction Temperature -65 to +125 °C
Thermal Characteristics
Symbol Parameter Value Unit
P
D
R
θJA
FR-4 board (3.0 × 4.5 × 0.062” by 1.0 × 0.5” land pads)
Electrical Characteristics
Power Dissipation 232 mW
Thermal Resistance, Junction to Ambient 430 °C/W
TC = 25°C unless other wise noted
2
Symbol Parameter Conditions Min. Max. Units
V
R
V
F
I
R
C
T
t
rr
©2005 Fairchild Semiconductor Corporation
BAT54SWT1G/BAT54CWT1G Rev. A
Breakdown Voltage IR = 10µA30V
Forward Voltage IF = 0.1mA
= 1mA
I
F
I
= 10mA
F
= 30mA
I
F
= 100mA
I
F
Reverse Leakage VR = 25V 2 µA
Total Capacitance VR = 1V, f = 1.0MHz 10 pF
Reverse Recovery Time IF = IR = 10mA, IRR = 1.0mA,
R
= 100Ω
L
1
240
320
400
500
0.8
mV
mV
mV
mV
V
5.0 ns
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Page 2
Typical Performance Characteristics
Figure 1. Forward Voltage vs Temperature Figure 2. Reverse Leakage Current
vs Temperature
1E-3
BAT54SWT1G/BAT54CWT1G Schottky Diodes
0.1
0.01
[A]
F
1E-3
1E-4
Forward Current, I
1E-5
1E-6
125 °C
100 °C
75 °C
25 °C
0.2 0.4 0.6 0.8
Forward Voltage Drop, VF[V]
1E-4
[A]
R
1E-5
1E-6
1E-7
Reverse Current, I
1E-8
0102030
125 °C
100 °C
75 °C
25 °C
Reverse Voltage, VR[V]
Figure 3. Capacitance vs Reverse Bias Voltage
20
18
15
[pF]
J
13
10
8
5
3
Juntion Capacitance, C
0
0246810
Reverse Voltage, VR[V]
BAT54SWT1G/BAT54CWT1G Rev. A
2
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Page 3
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A
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2
E
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DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY
PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY
ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT
CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
BAT54SWT1G/BAT54CWT1G Schottky DiodesBAT54SWT1G/BAT54CWT1G Schottky Diodes
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR
SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or systems which,
(a) are intended for surgical implant into the body, or (b) support
or sustain life, or (c) whose failure to perform when properly used
in accordance with instructions for use provided in the labeling,
can be reasonably expected to result in significant injury to the
user.
2. A critical component is any component of a life support device
or system whose failure to perform can be reasonably expected
to cause the failure of the life support device or system, or to
affect its safety or effectiveness.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification Product Status Definition
Advance Information Formative or In
Design
Preliminary First Production This datasheet contains preliminary data, and
No Identification Needed Full Production This datasheet contains final specifications. Fairchild
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete Not In Production This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.
3
BAT54SWT1G/BAT54CWT1G Rev. A
Rev. I15
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