Page 1
Features
• Low Forward Voltage Drop
• Common Cathode Configuration
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. “Green” Device (Notes 3 & 4)
SC59
Top View
SDM20E40C
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
Mechanical Data
• Case: SC59
• Case Material: Molded Plastic, "Green" Molding Compound,
Note 5. UL Flammability Classification Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminals: Matte Tin Finish annealed over Copper leadframe
(Lead Free Plating). Solderable per MIL-STD-202, Method 208
• Polarity: See Diagram
• Weight: 0.008 grams (approximate)
Device Schematic
Ordering Information (Note 5)
Part Number Case Packaging
SDM20E40C-7-F SC59 3000/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 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. Product manufactured with Date Code 0627 (week 27, 2006) and newer are built with Green Molding Compound. Product manufactured prior to
Date Code 0627 are built with Non-Green Molding Compound and may contain Halogens or Sb
5. For Packaging Details, go to our website at http://www.diodes.com.
Fire Retardants.
2O3
Marking Information
Date Code Key
Year 2002 2003 2004 … 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Code N P R … V W X Y Z A B C D E
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
KSS
YM
SDM20E40C
Document number: DS30276 Rev. 9 - 2
KSS = Product Type Marking Code
YM = Date Code Marking
Y =Year (ex: N = 2002)
M = Month (ex: 9 = September)
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)
(BR)
TANT
O
US F
O
R
R
CUR
RENT
TANT
O
US R
R
CUR
R
T
Maximum Ratings @T
= 25°C unless otherwise specified
A
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 6)
Non-Repetitive Peak Forward Surge Current @ t = 8.3ms
Repetitive peak Forward Current
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 6)
Operating Temperature Range
Junction Temperature Range
Storage Temperature Range
V
V
V
R(RMS
I
I
T
T
RRM
RWM
V
R
I
FM
FSM
FRM
P
D
OP
T
J
STG
SDM20E40C
40 V
28 V
0.4 A
2 A
500 mA
400 mW
-30 to +85
-30 to +125
°C
°C
-40 to +125 °C
Electrical Characteristics @T
= 25°C unless otherwise specified
A
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 7)
Forward Voltage
Leakage Current (Note 7)
Total Capacitance
Notes: 6. Mounted on FR4 PC Board with recommended pad layout which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
7. Short duration pulse test used to minimize self-heating effect.
V
V
F
I
R
C
T
1,000
(mA)
40
R
⎯
⎯
⎯ ⎯
⎯
⎯
⎯ ⎯
⎯ ⎯
10,000
(uA)
EN
1,000
300
500
70
100 pF
V
IR = 500μA
= 10mA
I
F
mV
I
= 200mA
F
μA
V
R
= 25V
VR = 0V, f = 1.0MHz
T = 125ºC
A
100
D
WA
10
SE
EVE
100
T = 75ºC
A
10
T = 25ºC
A
ANE
1.0
ANE
1
T = 0ºC
A
R
F
I , INS
0.1
0
100 200 300 400 500 600 700
V , INSTANTANEOUS FORWARD VOL TAGE (mV)
R
Fig. 1 Typical Forward Characteristics
0.1
I, INS
01020
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
Fig. 2 Typical Reverse Characteristics
30
40
SDM20E40C
Document number: DS30276 Rev. 9 - 2
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C, TOT
CAPAC
T
C
P, P
OWER
PATIO
N
100
E (pF)
AN
I
10
AL
T
1
0
5.0
Fig. 3 T otal Capacitance vs. Reverse Voltage
1510
V , DC REVERSE VOLTAGE (V)
R
25
Package Outline Dimensions
A
B
K
J
G
H
N
D
SDM20E40C
500
400
(mW)
300
DISSI
200
D
100
30
352040
C
M
L
0
2505075100 125 150
T , AMBIENT TEMPERATURE ( C)
A
Fig. 4 Power Derating Curve
Dim Min Max Typ
A 0.35 0.50 0.38
B 1.50 1.70 1.60
C 2.70 3.00 2.80
D - - 0.95
G - - 1.90
H 2.90 3.10 3.00
J 0.013 0.10 0.05
K 1.00 1.30 1.10
L 0.35 0.55 0.40
M 0.10 0.20 0.15
N 0.70 0.80 0.75
α
All Dimensions in mm
SC59
0° 8° -
°
Suggested Pad Layout
SDM20E40C
Document number: DS30276 Rev. 9 - 2
Y
Z
X E
C
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Dimensions Value (in mm)
Z 3.4
X 0.8
Y 1.0
C 2.4
E 1.35
May 2012
© Diodes Incorporated
Page 4
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 o r products described herein in such applica tions 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 unauthorize d 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.
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 © 2012, Diodes Incorporated
www.diodes.com
SDM20E40C
SDM20E40C
Document number: DS30276 Rev. 9 - 2
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