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Product Summary (@TA = +25°C)
VRRM (V)
40
IO (A)
0.5
VF Max
0.51V
Applications
DC-DC Converters
Mobile Telecommunications
Blocking Diodes
Reverse Polarity Protection
IR Max
10µA
B0540WQ
0.5A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Features and Benefits
Low Forward Voltage Drop
Guard Ring Construction for Transient Protection
High Conductance
Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
Halogen and Antimony Free. “Green” Device (Note 3)
Qualified to AEC-Q101 Standards for High Reliability
PPAP Capable (Note 4)
Mechanical Data
Case: SOD123
Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020
Terminals: Matte Tin Finish Annealed over Alloy 42 Leadframe.
(Lead-Free Plating). Solderable per MIL-STD-202, Method 208
Polarity: Cathode Band
Weight: 0.01 grams (Approximate)
SOD123
Top View
Ordering Information (Note 5)
Notes:
Part Number
B0540WQ-7-F
Case
SOD123
Packaging
3,000/Tape & Reel
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead-free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q101 qualified and are PPAP capable. Refer to http://www.diodes.com/product_compliance_definitions.html.
5. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
Date Code Key
Year
Code
Month
Code
2016
D
Jan Feb
12
SSFF
2017
E
Mar Apr
34
SF = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: D = 2016)
M = Month (ex: 9 = September)
2018
F
May
5
2019
G
Jun Jul
67
2020
H
Aug Sep
89
2021
I
Oct
O
2022
J
Nov Dec
ND
B0540WQ
Document number: DS38491 Rev. 3 - 2
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April 2016
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Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitive load, derate current by 20%.
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Average Rectified Output Current (See Figure 4)
Non-Repetitive Peak Forward Surge Current
8.3ms Single Half Sine-Wave Superimposed on Rated Load
Symbol
VRRM
VRWM
VR
VR(RMS)
IO
IFSM
B0540WQ
Value
40
28
0.5
5.5
Unit
V
V
A
A
Thermal Characteristics
Characteristic
Thermal Resistance Junction to Ambient Air (Note 6) TA = +25°C
Thermal Resistance Junction to Ambient Air (Note 7) TA = +25°C
Operating and Storage Temperature Range
Symbol
RθJA
RθJA
TJ, TSTG
Typ Max
385
325
-65 to +150
Unit
°C/W
°C/W
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Minimum Reverse Breakdown Voltage (Note 8)
Maximum Forward Voltage Drop
Symbol
V(BR)R
VFM
Value
40
0.510
0.620
0.460
0.610
Maximum Leakage Current (Note 8)
Total Capacitance
10
20
IRM 5.0
13
CT 170
Notes:
6. FR-4 PCB, minimum recommended pad layout per http://www.diodes.com/package-outlines.html.
7. Polymide PCB, minimum recommended pad layout per http://www.diodes.com/package-outlines.html.
8. Short duration pulse test used to minimize self-heating effect.
Unit
V
V
A
mA
pF
Test Conditions
IR = 20A
IF = 0.5A, TJ = +25°C
IF = 1.0A, TJ = +25°C
IF = 0.5A, TJ = +100°C
IF = 1.0A, TJ = +100°C
VR = 20V, TJ = +25°C
VR = 40V, TJ = +25°C
VR = 20V, TJ = +100°C
VR = 40V, TJ = +100°C
f = 1MHz, VR = 0V
B0540WQ
Document number: DS38491 Rev. 3 - 2
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0.4
IPK
IAV
0.3
B0540WQ
0.2
0.1
0
0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1
IF(AV), AVERAGE FORWARD CURRENT (A)
Fig. 1 Forward Power Dissipation
0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
100
10
TJ = 125°C
TJ = 100°C
TJ = 85°C
1
TJ = 25°C
0.1
0.01
TJ = -65°C
0.001
0 10 20 30 40
VR, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics
0.8
0.7
0.6
0.5 Note 7
0.4 Note 6
0.3
0.2
0.1
0
0 30 60 90 120 150
TA, AMBIENT TEMPERATURE (°C))
Fig. 5 Forward Current Derating Curve
0
0 5 10 15 20 25 30
VR, DC REVERSE VOLTAGE (V)
Fig. 4 Total Capacitance vs. Reverse Voltage
B0540WQ
Document number: DS38491 Rev. 3 - 2
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Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
C
H
B
SOD123
A
MK
L
SOD123
Dim Min Max
A 0.55 Typ
B 1.40 1.70
C 3.55 3.85
H 2.55 2.85
J 0.00 0.10
K 1.00 1.35
L 0.25 0.40
M 0.10 0.15
 0
All Dimensions in mm
B0540WQ
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
X1
X
Y
G
SOD123
Dimensions Value(in mm)
G 2.250
X 0.900
X1 4.050
Y 0.950
B0540WQ
Document number: DS38491 Rev. 3 - 2
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B0540WQ
IMPORTANT NOTICE
DIODES INCORPORATED MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARDS TO THIS DOCUMENT,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
(AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION).
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to this document and any product described herein. Diodes Incorporated does not assume any liability arising out of the
application or use of this document or any product described herein; neither does Diodes Incorporated convey any license under its patent or
trademark rights, nor the rights of others. Any Customer or user of this document or products described herein 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 Diodes Incorporated
website, harmless against all damages.
Diodes Incorporated does not warrant or accept any liability whatsoever in respect of any products purchased through unauthorized sales channel.
Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and
hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or
indirectly, any claim of personal injury or death associated with such unintended or unauthorized application.
Products described herein may be covered by one or more United States, international or foreign patents pending. Product names and markings
noted herein may also be covered by one or more United States, international or foreign trademarks.
This document is written in English but may be translated into multiple languages for reference. Only the English version of this document is the
final and determinative format released by Diodes Incorporated.
LIFE SUPPORT
Diodes Incorporated products are specifically not authorized for use as critical components in life support devices or systems without the express
written approval of the Chief Executive Officer of Diodes Incorporated. As used herein:
A. Life support devices or systems are devices or systems which:
1. are intended to implant into the body, or
2. support or sustain life and 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.
B. A critical component is any component in a life support device or system whose failure to perform can be reasonably expected to cause the
failure of the life support device or to affect its safety or effectiveness.
Customers represent that they have all necessary expertise in the safety and regulatory ramifications of their life support devices or systems, and
acknowledge and agree that they are solely responsible for all legal, regulatory and safety-related requirements concerning their products and any
use of Diodes Incorporated products in such safety-critical, life support devices or systems, notwithstanding any devices- or systems-related
information or support that may be provided by Diodes Incorporated. Further, Customers must fully indemnify Diodes Incorporated and its
representatives against any damages arising out of the use of Diodes Incorporated products in such safety-critical, life support devices or systems.
Copyright © 2016, Diodes Incorporated
www.diodes.com
B0540WQ
Document number: DS38491 Rev. 3 - 2
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April 2016
© Diodes Incorporated