SDM40E20L/S/C Datasheet

Diodes Incorporated

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Datasheet

SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2 1 of 3
www.diodes.com June 2008
© Diodes Incorporated
SDM40E20L /S /C /
A
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
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
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)
Top View SDM40E20LA
SDM40E20LS SDM40E20LC
Maximum Ratings @TA = 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR 20 V
RMS Reverse Voltage VR(RMS) 14 V
Forward Continuous Current (Note 1) IFM 0.4 A
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimposed on rated load IFSM 2 A
Thermal Characteristics
Characteristic Symbol Value Unit
225 Power Dissipation (Note 1)
(Note 2) PD 300 mW
444 Typical Thermal Resistance Junction to Ambient (Note 1)
(Note 2) RθJA 333 °C/W
Operating and Storage Temperature Range TJ, TSTG -65 to +125 °C
Electrical Characteristics @TA = 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Conditions
Reverse Breakdown Voltage (Note 3) V(BR)R 20 V IR = 0.5mA
Forward Voltage Drop VF
0.310
0.430 V IF = 0.1A
IF = 0.5A
Leakage Current (Note 3) IR
100
250 μA VR = 10V
VR = 20V
Total Capacitance CT 120 pF f = 1MHz, VR = 0VDC
Notes: 1. Device mounted on FR-5 1.0 x 0.75 x 0.062 inch PCB pad layout.
2. Device mounted on Alumina PCB, 0.4 inch x 0.3 inch x 0.024 inch pad layout.
3. Short duration pulse test used to minimize self-heating effect.
4. No purposefully added lead. Halogen and Antimony Free.
5. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
6. Product manufactured with Green Molding Compound and does not contain Halogens or Sb2O3 Fire Retardants.
Please click here to visit our online spice models database.
SDM40E20L /S /C /
A
0.1
1
10
0.01
0.00101.0
0.6 0.80.40.2
I, I
N
S
T
A
N
T
A
N
E
O
U
S
F
O
R
WA
R
D
C
U
R
R
E
N
T
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics, Per Element
F
0.001
0.1
0.01
100
1000
10,000
0V , INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 Typical Reverse Characteristics, Per Element
R
10 20
10
1
I , INSTANTANEOUS REVERSE CURRENT (µA)
R
SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2 2 of 3
www.diodes.com June 2008
© Diodes Incorporated
0
60
40
20
010 15520
C
,
T
O
T
AL
C
A
P
A
C
I
T
AN
C
E (p
F
)
T
V , DC REVERSE VOLTAGE (V)
Fig. 3 Total Capacitance vs. Reverse Voltage, Per Element
R
f = 1.0MHz
0
0.10
0.20
050100
I, AVE
150
R
A
G
E
F
O
R
WA
R
D
C
U
R
R
EN
T
(A)
F(AV)
T , AMBIENT TEMPERATURE ( C)
Fig. 4 Forward Current Derating Curve, Per Element
A
°
0.30
0.40
25 75 125
Ordering Information (Note 7)
Part Number Case Packaging
SDM40E20LS-7-F SOT-23 3000/Tape & Reel
SDM40E20LC-7 SOT-23 3000/Tape & Reel
SDM40E20LA-7 SOT-23 3000/Tape & Reel
Notes: 7. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Marking Information
KSW
YM
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
KWA
YM
KWS
YM
Y =Year ex: T = 2006
M = Month ex: 9 = September
Date Code Key
Year 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015
Code S T U V W X Y Z A B C
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
Package Outline Dimensions
SDM40E20L /S /C /
A
SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2 3 of 3
www.diodes.com June 2008
© Diodes Incorporated
Suggested Pad Layout
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.
A
M
JL
DF
BC
H
K
G
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
α 0° 8°
All Dimensions in mm
X E
Y
C
Z
Dimensions Value (in mm)
Z 2.9
X 0.8
Y 0.9
C 2.0
E 1.35

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