SDM40E20L /S /C /A
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
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Features
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Very Low Forward Voltage Drop
Guard Ring Construction for Transient Protection
High Conductance
Lead, Halogen and Antimony Free, RoHS Compliant
"Green" Device (Notes 4, 5 and 6)
Mechanical Data
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•
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Case: SOT-23
Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
Moisture Sensitivity: Level 1 per J-STD-020D
Polarity: See Diagram
Leads: Solderable per MIL-STD-202, Method 208
Terminals: SDM40E20L/S/A Finish
⎯
Matte Tin Finish
annealed over Alloy 42 leadframe.
SDM40E20LC Finish
⎯
Matte Tin Finish
annealed over CDA194 leadframe.
Marking Information: See Page 2
Ordering Information: See Page 2
Weight: 0.008 grams (approximate)
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Top View
SDM40E20LS
SDM40E20LC
SDM40E20LA
Maximum Ratings
@T
A
= 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 1)
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimposed on rated load
Symbol
V
RRM
V
RWM
V
R
V
R(RMS)
I
FM
I
FSM
Value
20
14
0.4
2
Unit
V
V
A
A
Thermal Characteristics
Characteristic
Power Dissipation
Typical Thermal Resistance Junction to Ambient
Operating and Storage Temperature Range
(Note 1)
(Note 2)
(Note 1)
(Note 2)
Symbol
P
D
R
θ
JA
T
J,
T
STG
Value
225
300
444
333
-65 to +125
Unit
mW
°C/W
°C
Electrical Characteristics
Characteristic
Reverse Breakdown Voltage (Note 3)
Forward Voltage Drop
Leakage Current (Note 3)
Total Capacitance
Notes:
1.
2.
3.
4.
5.
6.
@T
A
= 25°C unless otherwise specified
Symbol
V
(BR)R
V
F
I
R
C
T
Min
20
⎯
⎯
⎯
⎯
⎯
Typ
⎯
⎯
⎯
⎯
⎯
120
Max
⎯
0.310
0.430
100
250
⎯
Unit
V
V
μA
pF
Test Conditions
I
R
= 0.5mA
I
F
= 0.1A
I
F
= 0.5A
V
R
= 10V
V
R
= 20V
f = 1MHz, V
R
= 0VDC
Device mounted on FR-5 1.0 x 0.75 x 0.062 inch PCB pad layout.
Device mounted on Alumina PCB, 0.4 inch x 0.3 inch x 0.024 inch pad layout.
Short duration pulse test used to minimize self-heating effect.
No purposefully added lead. Halogen and Antimony Free.
Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
Product manufactured with Green Molding Compound and does not contain Halogens or Sb
2
O
3
Fire Retardants.
SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2
1 of 3
www.diodes.com
June 2008
© Diodes Incorporated
SDM40E20L /S /C /A
I
F
, INSTANTANEOUS FORWARD CURRENT (A)
I
R
, INSTANTANEOUS REVERSE CURRENT (µA)
10
10,000
1000
100
10
1
0.1
0.01
0.001
20
10
0
V
R
, INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics, Per Element
1
0.1
0.01
0.001
0
0.2
0.4
0.6
0.8
1.0
V
F
, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics, Per Element
0.40
I
F(AV)
, AVERAGE FORWARD CURRENT (A)
f = 1.0MHz
C
T
, TOTAL CAPACITANCE (pF)
0.30
0.20
60
40
20
0
10
5
15
20
V
R
, DC REVERSE VOLTAGE (V)
Fig. 3 Total Capacitance vs. Reverse Voltage, Per Element
0
0.10
0
0
50
100
25
75
125
150
T
A
, AMBIENT TEMPERATURE (
°
C)
Fig. 4 Forward Current Derating Curve, Per Element
Ordering Information
Part Number
SDM40E20LS-7-F
SDM40E20LC-7
SDM40E20LA-7
Notes:
(Note 7)
Case
SOT-23
SOT-23
SOT-23
Packaging
3000/Tape & Reel
3000/Tape & Reel
3000/Tape & Reel
7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
KSW = SDM40E20LS Product
Type Marking Code
YM = Date Code Marking
Y = Year ex: T = 2006
M = Month ex: 9 = September
KWS = SDM40E20LC Product
Type Marking Code
YM = Date Code Marking
Y =Year ex: T = 2006
M = Month ex: 9 = September
KWA = SDM40E20LA Product
Type Marking Code
YM = Date Code Marking
Y =Year ex: T = 2006
M = Month ex: 9 = September
YM
YM
KSW
KWS
KWA
Date Code Key
Year
Code
Month
Code
2005
S
Jan
1
2006
T
Feb
2
2007
U
Mar
3
2008
V
Apr
4
2009
W
May
5
Jun
6
2010
X
Jul
7
2011
Y
Aug
8
2012
Z
Sep
9
YM
2013
A
2014
B
Nov
N
2015
C
Dec
D
June 2008
Oct
O
SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2
2 of 3
www.diodes.com
© Diodes Incorporated
SDM40E20L /S /C /A
Package Outline Dimensions
A
B C
G
H
K
M
J
D
F
L
SOT-23
Dim
Min
Max
A
0.37
0.51
B
1.20
1.40
C
2.30
2.50
D
0.89
1.03
F
0.45
0.60
G
1.78
2.05
H
2.80
3.00
J
0.013
0.10
K
0.903
1.10
L
0.45
0.61
M
0.085
0.180
0°
8°
α
All Dimensions in mm
Suggested Pad Layout
Y
Z
C
Dimensions Value (in mm)
Z
2.9
X
0.8
Y
0.9
C
2.0
E
1.35
X
E
IMPORTANT NOTICE
Diodes Incorporated and its subsidiaries reserve the right to make modifications, enhancements, improvements, corrections or other changes
without further notice to any product herein. Diodes Incorporated 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.
LIFE SUPPORT
Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written
approval of the President of Diodes Incorporated.
SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2
3 of 3
www.diodes.com
June 2008
© Diodes Incorporated
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