Page 1
Features
Low Forward Voltage Drop
·
Common Anode Configuration
·
Lead Free By Design/RoHS Compliant (Note 3)
·
"Green" Device (Note 4)
·
Mechanical Data
Case: SOT-23
·
Case Material: Molded Plastic. "Green" Molding
·
NEW PRODUCT
Compound. UL Flammability Classification Rating 94V-0
Moisture sensitivity: Level 1 per J-STD-020C
·
Terminal Connections: See Diagram
·
Terminals: Finish - Matte Tin annealed over Alloy 42
·
leadframe. Solderable per MIL-STD-202, Method 208
Marking & Type Code Information: See Last Page
·
Ordering Information: See Last Page
·
Weight: 0.008 grams (approx.)
·
Lead-free Green
SDM20N40A
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
SOT-23
Dim Min Max
0.37 0.51
A
1.20 1.40
B
2.30 2.50
C
0.89 1.03
D
0.45 0.60
E
1.78 2.05
G
2.80 3.00
H
0.013 0.10
J
0.903 1.10
K
0.45 0.61
L
0.085 0.180
M
a
0° 8°
All Dimensions in mm
E
TOP VIEW
D
G
H
D
TOP VIEW
A
B
C
K
J
L
M
Maximum Ratings
@ TA= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current, Per Element
Non-Repetitive Peak Forward Surge Current @ t = 8.3ms
Junction Temperature Range
Storage Temperature Range
Thermal Characteristics
@ TA= 25°C unless otherwise specified
V
V
V
R(RMS)
I
I
FSM
T
RRM
RWM
V
R
FM
T
j
STG
Characteristic Symbol Value Unit
Power Dissipation (Note 1)
Thermal Resistance, Junction to Ambient Air (Note 1)
Electrical Characteristics
@ TA= 25°C unless otherwise specified
P
d
R
qJA
Characteristic Symbol Min Typ Max Unit Test Condition
Reverse Breakdown Voltage (Note 2)
Forward Voltage (Note 2)
Leakage Current (Note 2)
Total Capacitance
Notes: 1. Mounted on FR4 PC Board with recommended pad layout which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration test pulse used to minimize self-heating effect.
3. No purposefully added lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
V
(BR)R
V
F
I
R
C
T
40 ¾¾ V
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾
¾ 23 50 pF
40
28 V
200 mA
1
-65 to +125 °C
-65 to +150 °C
200 mW
500 °C/W
= 500mA
I
R
= 10mA
300
420
550
15
3
mV
mA
mA
I
F
I
= 100mA
F
I
= 200mA
F
= 30V
V
R
V
= 30V, Tj= 100°C
R
= 0V, f = 1.0MHz
V
R
V
A
DS30542 Rev. 7 - 2 1 of 3 SDM20N40A
www.diodes.com
ã Diodes Incorporated
Page 2
1000
O
O
O
t
g
2
O
O
100
RWARD CURRENT (mA)
10
US F
NEW PRODUCT
1.0
T=75CA°
T=125CA°
T=25CA°
°
T=-65C
A
10,000
1000
US REVERSE CURRENT (uA)
100
10
0.1
0.01
T = 125ºC
A
T = 75ºC
A
T = 25ºC
1
A
T = -65ºC
A
F
I , INSTANTANE
0.1
0
V , INSTANTANEOUS FORWARD VOLTAGE (mV)
F
200 300 400 500 600 700
100
Fig. 1 Typical Forward Characteristics
R
I , INSTANTANE
0.001
010
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
20
30
Fig. 2 Typical Reverse Characteristics, per elemen
40
50
5
T
C , TOTAL CAPACITANCE (pF)
20
15
10
5
200
N (mW)
150
100
WER DISSIPATI
d
P,P
50
0
5
015
10
V , REVERSE VOLTAGE (V)
R
.3 Typical Total Capacitance
Fi
20
25
30
35
40
0
2505075100 125 150
T , AMBIENT TEMPERATURE ( C)
A
Fig. 4 Power Derating Curve
°
DS30542 Rev. 7 - 2 2 of 3 SDM20N40A
www.diodes.com
Page 3
Ordering Information
(Note 5)
Device
SDM20N40A-7
Notes: 5. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
Packaging Shipping
SOT-23 3000/Tape & Reel
Marking Information
NEW PRODUCT
KLP = Product Type Marking Code
YM = Date Code Marking
Y = Year ex: P = 2003
YM
M = Month ex: 9 = September
Date Code Key
Month Jan Feb Mar Apr May Jun Jul
Code
KLP
Year 2003 2004 2005
Code
1234567
PRS
2006 2007 2008 2009
TU VW
Aug Sep Oct Nov Dec
89 O ND
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.
DS30542 Rev. 7 - 2 3 of 3 SDM20N40A
www.diodes.com
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