Lead-free Green
DS30392 Rev. 5 - 2 1 of 3 SDM03U40
www.diodes.com ã Diodes Incorporated
SDM03U40
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
Maximum Ratings @ TA = 25°C unless otherwise specified
·Low Forward Voltage Drop
·Guard Ring Die Construction for
Transient Protection
·Ideal for low logic level applications
·Low Capacitance
·Lead Free by Design/RoHS Compliant (Note 1)
·"Green" Device, Note 4 and 5
·Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
Characteristic Symbol Value Unit
Peak Reverse Voltage VRM 40 V
DC Reverse Voltage VR30 V
RMS Reverse Voltage VR(RMS) 21 V
Average Rectified Current IO30 mA
Non-Repetitive Peak Forward Surge Current @8.3ms
Single half sine-wave superimposed on rated load (JEDEC
method)
IFSM 200 mA
Operating and Storage Temperature Range Tj, TSTG -40 to +125 °C
Electrical Characteristics
Characteristic Symbol Min Typ Max Unit Test Conditions
Reverse Breakdown Voltage (Note 3) V(BR)R 40 ¾ ¾ VIR = 10uA
Forward Voltage (Note 3) VF¾290 370 mV IF = 1mA
Peak Reverse Current (Note 3) IR¾ ¾ 0.5 mAVR = 30V
Total Capacitance Cj¾2¾pF VR = 1V, f = 1.0 MHz
@ TA = 25°C unless otherwise specified
TCUDORP WEN
·Case: SOD-523
·Case Material: Molded Plastic, "Green" Molding
Compound, Note 5. UL Flammability Classification
Rating 94V-0
·Moisture Sensitivity: Level 1 per J-STD-020C
·Terminal Connections: Cathode Band
·Terminals: Finish - Matte Tin annealed over Alloy 42
leadframe. Solderable per MIL-STD-202, Method 208
·Marking Code: LK
·Ordering Information: See Last Page
·Weight: 0.002 grams (approximate)
B
A
C
DG
E
CATHODE MARK
LK
MARKING CODE
SOD-523
Dim Min Max
A1.50 1.70
B1.10 1.30
C0.25 0.35
D0.70 0.90
E0.10 0.20
G0.55 0.65
All Dimensions in mm
Note: 1. No purposefully added lead.
2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
3. Short duration pulse test used to minimize self-heating effect.
4. Diodes Inc.'s "Green" Policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
5. Product manufactured with date code 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date
code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
Thermal Characteristics @ TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Power Dissipation (Note 2) Pd150 mW
Thermal Resistance, Junction to Ambient (Note 2) RqJA 667 °C/W
SPICE MODEL: SDM03U40
DS30392 Rev. 5 - 2 2 of 3 SDM03U40
www.diodes.com
TCUDORP WEN
0.1
0.2
0.5
1
5
2
10
04812 16 20 24 28
t , REVERSE RECOVERY TIME (ns)
rr
I , FORWARD CURRENT (mA)
F
Fig. 5 Typical Reverse Recovery Time Characteristics
0.1
1
10
100
0510 15 20 25
C , TOTAL CAPACITANCE (pF)
T
V , REVERSE VOLTAGE (V)
R
Fig. 4 Total Capacitance vs. DC Voltage
f = 1MHz
0 5 10 15 20 25 30 35
I , INSTANTANEOUS REVERSE CURRENT (A)
R
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
Fig. 3 Typical Reverse Characteristics
T = +125ºC
A
T = 75ºC
A
T = 25ºC
A
T = -25ºC
A
100n
10n
1n
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
I , INSTANTANEOUS FORWARD CURRENT (A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
F
Fig. 2 Typical Forward Characteristics
T = +125ºC
A
T = +75ºC
A
T = +25ºC
A
100m
1m
10m
1
0
50
0 25 50 75 100 125
P , POWER DISSIPATION (mW)
D
T , AMBIENT TEMPERATURE (°C)
A
Fig. 1 Derating Curve
100
200
150
DS30392 Rev. 5 - 2 3 of 3 SDM03U40
www.diodes.com
TCUDORP WEN
Ordering Information (Note 5 & 6)
Device Packaging Shipping
SDM03U40-7 SOD-523 3000/Tape & Reel
SDM03U40-76K SOD-523 6000/Tape & Reel
Note: 5. Product manufactured with date code 0609 (week 9, 2006) and newer are built with Green Molding Compound. Product manufactured prior to date
code 0609 are built with Non-Green Molding Compound and may contain Halogens or Sb2O3 Fire Retardants.
6. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
IMPORTANT NOTICE
Diodes, Inc. and its subsidiaries reserve the right to make changes without further notice to any product herein to make corrections, modifications, enhance-
ments, improvements, or other changes. Diodes, Inc. 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
The products located on our website at www.diodes.com are not recommended for use in life support systems where a failure or malfunction of the
component may directly threaten life or cause injury without the expressed written approval of Diodes Incorporated.