B0540WQ
Document number: DS38491 Rev. 4 - 2
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0.5A SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Product Summary (@TA = +25°C)
VRRM (V)
IO (A)
VF Max
IR Max
40
0.5
0.51V
10µA
Applications
DC-DC Converters
Mobile Telecommunications
Blocking Diodes
Reverse Polarity Protection
SOD123
Ordering Information (Note 5)
Part Number
Case
Packaging
B0540WQ-7-F
SOD123
3,000/Tape & Reel
Notes: 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 https://www.diodes.com/quality/product-compliance-definitions/.
5. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
Marking Information
Date Code Key
Year
2016
2017
2018
2019
2020
2021
2022
Code
D
E
F
G
H
I
J
Month
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Code
1
2
3
4
5
6
7
8
9
O
N
D
Top View
SF = Product Type Marking Code
YM = Date Code Marking
Y = Year (ex: E = 2017)
M = Month (ex: 9 = September)
SF
YM
SF
YM
B0540WQ
Document number: DS38491 Rev. 4 - 2
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B0540WQ
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
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 (See Figure 4)
IO
0.5
A
Non-Repetitive Peak Forward Surge Current
8.3ms Single Half Sine-Wave Superimposed on Rated Load
IFSM
5.5
A
Thermal Characteristics
Characteristic
Symbol
Typ
Max
Unit
Thermal Resistance Junction to Ambient Air (Note 6) TA = +25°C
RθJA
385
°C/W
Thermal Resistance Junction to Ambient Air (Note 7) TA = +25°C
RθJA
325
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-65 to +150
°C
Electrical Characteristics (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Test Conditions
Minimum Reverse Breakdown Voltage (Note 8)
V(BR)R
40
V
IR = 20A
Maximum Forward Voltage Drop
VFM
0.510
0.620
0.460
0.610
V
IF = 0.5A, TJ = +25°C
IF = 1.0A, TJ = +25°C
IF = 0.5A, TJ = +100°C
IF = 1.0A, TJ = +100°C
Maximum Leakage Current (Note 8)
IRM
10
20
A
VR = 20V, TJ = +25°C
VR = 40V, TJ = +25°C
5.0
13
mA
VR = 20V, TJ = +100°C
VR = 40V, TJ = +100°C
Total Capacitance
CT
170
pF
f = 1MHz, VR = 0V
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.
B0540WQ
Document number: DS38491 Rev. 4 - 2
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December 2017
© Diodes Incorporated
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0
0.1
0.2
0.3
0.4
0 0.1 0.30.2 0.4 0.5 0.6 0.7 0.8 0.9 1
P , POWER DISSIPATION (W)
D
I , AVERAGE FORWARD CURRENT (A)
Fig. 1 Forward Power Dissipation
F(AV)
IPK
IAV
0
I , INSTANTANEOUS FORWARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
F
0010 20
C , TOTAL CAPACITANCE (pF)
T
V , DC REVERSE VOLTAGE (V)
Fig. 4 Total Capacitance vs. Reverse Voltage
R
30515 25
0
0.1
0.2
0.3
0.5
0.4
0.6
0.7
0.8
030 60 90 120 150
I , AVERAGE FORWARD CURRENT (A)
F(AV)
T , AMBIENT TEMPERATURE (
癈
)
Fig. 5 Forward Current Derating Curve
A
0.001
0.01
0.1
1
10
100
0
10
20
30
40
V, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics
R
T = -65°C
J
T = 25°C
J
T = 85°C
J
T = 100°C
J
T = 125°C
J
(°C )
Note 6
Note 7
B0540WQ
Document number: DS38491 Rev. 4 - 2
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Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOD123
c
He
E
bD
All 7°
All R0.100
a
L
A
A1
All R0.100
All 7°
SOD123
Dim
Min
Max
Typ
A
1.00
1.35
1.05
A1
0.00
0.10
0.05
b
0.52
0.62
0.57
c
0.10
0.15
0.11
D
1.40
1.70
1.55
E
2.55
2.85
2.65
He
3.55
3.85
3.65
L
0.25
0.40
0.30
a
0º
8º
--
All Dimensions in mm
Suggested Pad Layout
Please see http://www.diodes.com/package-outlines.html for the latest version.
SOD123
Y
X
X1
Dimensions
Value (in mm)
X
0.900
X1
4.050
Y
0.950
B0540WQ
Document number: DS38491 Rev. 4 - 2
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December 2017
© Diodes Incorporated
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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).
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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.
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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.
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failure of the life support device or to affect its safety or effectiveness.
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