Lead-free Green
DS30524 Rev. 5 - 2 1 of 3 B0540WS
www.diodes.com ãDiodes Incorporated
B0540WS
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Features
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Maximum Ratings @ TA= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
40 V
RMS Reverse Voltage VR(RMS) 28 V
Average Rectified Output Current IO0.5 A
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimposed on rated load
(JEDEC Method)
IFSM 3A
Power Dissipation (Note 1) Pd235 mW
Typical Thermal Resistance Junction to Ambient (Note 1) RqJA 426 °C/W
Operating and Storage Temperature Range Tj, TSTG -40 to +125 °C
A
B
C
D
E
G
H
J
·Low Forward Voltage Drop
·Guard Ring Construction for
Transient Protection
·High Conductance
·Lead Free By Design/RoHS Compliant (Note 3)
·"Green" Device (Note 4)
·Case: SOD-323
·Case Material: Molded Plastic. UL Flammability Rating
Classification 94V-0
·Moisture sensitivity: Level 1 per J-STD-020C
·Polarity: Cathode Band
·Terminals: Finish - Matte Tin annealed over Alloy 42
leadframe. Solderable per MIL-STD-202, Method 208
·Marking: Type Code and Cathode Band
Type Code: SF
·Weight: 0.004 grams (approx.)
Mechanical Data
Electrical Characteristics @ TA= 25°C unless otherwise specified
SOD-323
Dim Min Max
A2.30 2.70
B1.60 1.80
C1.20 1.40
D1.00 1.10
E0.25 0.35
G0.20 0.40
H0.10 0.15
J0.05 Typical
a0°8°
All Dimensions in mm
Note: 1. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration test pulse used to minimize self-heating effect.
3. No Purposefully added Lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 2) V(BR)R 40 ¾¾ VIR= 1mA
Forward Voltage (Note 2) VF¾285
480
300
550 mV IF= 10mA
IF= 500mA
Reverse Current (Note 2) IR¾
¾
1.0
2.0
3
5
mA
mA
VR= 10V
VR= 30V
Total Capacitance CT¾
¾
125
20
¾
¾
pF
pF
VR= 0V, f = 1.0MHz
VR= 10V, f = 1.0MHz
NEW PRODUCT
SPICE MODEL: B0540WS
DS30524 Rev. 5 - 2 2 of 3 B0540WS
www.diodes.com
0
10
100
C , TOTAL CAPACITANCE (pF)
T
V , REVERSE VOLTAGE (V)
Fig. 4 Typical Total Capacitance
vs. Reverse Volta
g
e
R
1000
510 25
20
f=1MHz
15
1m
10
m
0102025
35 40
155.0 30
V , REVERSE VOLTAGE (V)
Fi
g
.3 T
y
pical Reverse Characteristics
R
T = +25°C
A
T = +75°C
A
T=+125°C
A
10
1
100
1000
.001
00.60
I , INSTANTANE
O
US F
O
RWARD CURRENT (mA)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
0.10 0.20 0.30 0.40 0.50
.01
.1
T = +125 C
A
°
T=+75C
A
°
T=+25C
A
°
T=-25C
A
°
0
0.25
0.50
0 50 100 150
I , AVERAGE F
O
RWARD CURRENT (A)
F(AV)
T , TERMINAL TEMPERATURE ( C)
Fig. 1 Forward Current Derating Curve
T
°
0.75
1.0
25 75 125
SF
Cathode Band
Type Cod
e
Marking Information
Note: 5. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Ordering Information (Note 5)
NEW PRODUCT
Device Packaging Shipping
B0540WS-7-F SOD-323 3000/Tape and Reel
DS30524 Rev. 5 - 2 3 of 3 B0540WS
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IMPORTANT NOTICE
LIFE SUPPORT
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Diodes, Inc. and its subsidiaries reserve the right to make changes without further notice to any product herein to make corrections, modifications, enhance-
ments, improvements, or other changes. Diodes, Inc. does not assume any liability arising out of the application or use of any product described herein;
neither does it convey any license under its patent rights, nor the rights of others. The user of products in such applications shall assume all risks of such
use and will agree to hold Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages.
The products located on our website at are not recommended for use in life support systems where a failure or malfunction of the
component may directly threaten life or cause injury without the express written approval of Diodes Incorporated.