Document
Features
Very Low Forward Voltage Drop Guard Ring Construction for Transient Protection High Conductance Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2) Halogen and Antimony Free. “Green” Device (Note 3) An Automotive-Compliant Part is Available Under
Separate Datasheet (SDM40E20LSQ/AQ)
SDM40E20L /S /C /A
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
Mechanical Data
Package: SOT23 Package Material: Molded Plastic. UL Flammability
Classification Rating 94V-0 Moisture Sensitivity: Level 1 per J-STD-020 Polarity: See Diagram Terminals: Finish – Matte Tin Plated Leads, Solderable
per MIL-STD-202, Method 208 Weight: 0.008 grams (Approximate)
SOT23 (Standard)
Top View
SDM40E20LS
SDM40E20LC
SDM40E20LA
Ordering Information (Note 4)
Notes:
Part Number
SDM40E20LS-7-F SDM40E20LC-7 SDM40E20LA-7
Package
SOT23 (Standard) SOT23 (Standard) SOT23 (Standard)
Qty. 3,000 3,000 3,000
Packing Carrier
Tape & Reel Tape & Reel Tape & Reel
1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS), 2011/65/EU (RoHS 2) & 2015/863/EU (RoHS 3) compliant. 2. See https://www.diodes.com/quality/lead-free/ 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. For packaging details, go to our website at https://www.diodes.com/design/support/packaging/diodes-packaging/.
Marking Information
xxx = Product Type Marking Code KSW = SDM40E20LS KWS = SDM40E20LC KWA = SDM40E20LA
YM & YM= Date Code Marking Y& Y = Year (ex: J = 2022) M = Month (ex: D = Dec)
Date Code Key Year Code
Month Code
2002 O
Jan 1
…
2022 2023 2024 2025 2026 2027 2028 2029 2030 2031
…
J
K
L
M
N
O
P
R
S
T
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
2
3
4
5
6
7
8
9
O
N
D
SDM40E20L /S /C /A
Document number: DS30298 Rev. 12 - 2
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October 2022
© 2022 Copyright Diodes Incorporated. All Rights Reserved.
SDM40E20L /S /C /A
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
Peak Repetitive Reverse Voltage Working Peak Reverse Voltage DC Blocking Voltage
RMS Reverse Voltage Forward Continuous Current (Note 5) Non-Repetitive Peak Forward Surge Current 8.3ms Single Half Sine-Wave Superimposed On Rated Load
Symbol VRRM VRWM VR VR(RMS) IFM
IFSM
Thermal Characteristics
Power Dissipation
Characteristic
Typical Thermal Resistance Junction to Ambient
Operating and Storage Temperature Range
(Note 5) (Note 6)
(Note 5) (Note 6)
Symbol PD
RJA TJ, TSTG
Electrical Characteristics @TA = +25°C, unless otherwise specified.
Characteristic Reverse Breakdown Voltage (Note 7) Forward Voltage Drop
Leakage Current (Note 7) Total Capacitance
Symbol
Min
V(BR)R
20
VF
IR
CT
Notes:
5. Device mounted on FR-5 1.0 x 0.75 x 0.062 inch PCB pad layout. 6. Device mounted on Alumina PCB, 0.4 inch x 0.3 inch x 0.024 inch pad layout. 7. Short duration pulse test used to minimize self-heating effect.
Value
Unit
20
V
14
V
0.4
A
2
A
Value 225 300 444 333
-65 to +125
Unit mW
C/W C
Typ.
120
Max 0.310 0.430
100 250
Unit V V
A pF
Test Conditions IR = 0.5mA IF = 0.1A IF = 0.5A VR = 10V VR = 20V f = 1MHz, VR = 0VDC
SDM40E20L /S /C /A
Document number: DS30298 Rev. 12 - 2
2 of 5 www.diodes.com
October 2022
© 2022 Copyright Diodes Incorporated. All Rights Reserved.
IF, INSTANTANEOUS FORWARD CURRENT (A)
10 1
0.1
0.01
0.001
0
0.2
0.4
0.6
0.8
1.0
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics, Per Element
f = 1.0MHz
60
40
20
0
0
5
10
15
20
VR, DC REVERSE VOLTAGE (V) Fig. 3 Total Capacitance vs. Reverse Voltage, Per Element
IF(AV), AVERAGE FORWARD CURRENT (A)
IR, INSTANTANEOUS REVERSE CURRENT (µA)
SDM40E20L /S /C /A
10,000 1000
100
10
1
0.1
0.01
0.001 0
10
20
VR, INSTANTANEOUS REVERSE VOLTAGE (V) Fig. 2 Typical Reverse Characteristics, Per Element
0.40
0.30
0.20
0.10
0
0
25
50 75 100 125 150
TA, AMBIENT TEMPERATURE (°C) Fig. 4 Forward Current Derating Curve, Per Element
CT, TOTAL CAPACITANCE (pF)
SDM40E20L /S /C /A
Document number: DS30298 Rev. 12 - 2
3 of 5 www.diodes.com
October 2022
© 2022 Copyright Diodes Incorporated. All Rights Reserved.
Package Outline Dimensions
Please see http://www.diodes.com/package-outlines.html for the latest version.
D A A2
b
SOT23 (Standard)
A1
c
L1
GAUGE PLANE 0.25
a L
E E1
e
F
e1
SDM40E20L /S /C /A
SOT23 (Standard)
Dim Min Max Typ
A 0.90 1.15 1.025
A1 0.00 0.10 0.05
A2 0.85 1.10 0.975
b 0.30 0.51 0.40
c 0.080 0.202 0.11
D 2.80 3.00 2.90
E 2.25 2.55 2.40
E1 1.20 1.40 1.30
e 0.89 1.03 0.915
e1 1.78 2.05.