SDM03U40
Document number: DS30392 Rev. 9 - 2 1 of 3
www.diodes.com January 2009
© Diodes Incorporated
SDM03U40
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
Low Forward Voltage Drop
Guard Ring Die Construction for Transient Protect ion
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
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-020D
Terminal Connections: Cathode Band
Terminals: Finish - Matte Tin annealed over Alloy 42 leadframe.
Solderable per MIL-STD-202, Method 208
Marking Information: See Page 3
Ordering Information: See Page 3
Weight: 0.002 grams (approximate)
Maximum Ratings @TA = 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Reverse Voltage VRM 40 V
DC Reverse Voltage VR 30 V
RMS Reverse Voltage VR
(
RMS
)
21 V
Average Rectified Current IO 30 mA
Non-Repetitive Peak Forward Surge Current @8.3ms
Single half sine-wave superimposed on rated load IFSM 200 mA
Thermal Characteristics
Characteristic Symbol Value Unit
Power Dissipation (Note 2) PD 150 mW
Thermal Resistance, Junction to Ambient (Note 2) R
θ
JA 667 °C/W
Operating and Storage Temperature Range TJ, TSTG -40 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 40 V IR = 10uA
Forward Voltage VF 290 370 mV IF = 1mA
Peak Reverse Current (Note 3) IR 0.5 μA VR = 30V
Total Capacitance CT 2 pF VR = 1V, f = 1.0 MHz
Notes: 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 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 Sb2O3 Fire Retardants.
Top View
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SDM03U40
Document number: DS30392 Rev. 9 - 2 2 of 3
www.diodes.com January 2009
© Diodes Incorporated
SDM03U40
00.2 0.4 0.6 0.8 1.0 1.2 1.4
I , INS
T
AN
T
ANE
O
U
S
F
O
R
WA
R
D
C
U
R
R
EN
T
(A)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Typical Forward Characteristics
F
100m
1m
10m
1
05101520 25 30 35
I, INS
T
AN
T
ANE
O
U
S
R
EVE
R
SE
C
U
R
R
EN
T
(A)
R
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Fig. 2 T ypical Reverse Characteristics
R
100n
10n
1n
0.1
1
10
100
0510 15 20 25
C
,
T
O
T
AL
C
A
P
A
C
I
T
A
N
C
E (p
F
)
T
V , DC REVERSE VOL TAGE (V)
Fig . 3 Tot al Capacit ance vs. Re ver se V olt age
R
0.1
0.2
0.5
1
5
2
10
04812 16 20 24 28
t,
R
EVE
R
SE
R
E
C
O
VE
R
Y
T
IME (ns)
rr
I , FORW ARD CURRENT (m A)
Fig. 4 Typical Reverse Recovery Time Characteristics
F
0
50
02550 75 100 125
P
,
P
O
WE
R
DISSI
P
A
T
I
O
N (mW)
D
T , AMBIENT TEMPERA TURE ( C)
Fig. 5 Power Derating Curve
A
°
100
200
150
SDM03U40
Document number: DS30392 Rev. 9 - 2 3 of 3
www.diodes.com January 2009
© Diodes Incorporated
SDM03U40
Ordering Information (Notes 5 & 6)
Part Number Case Packaging
SDM03U40-7 (Note 7) SOD-523 3000/Tape & Reel
SDM03U40-76K SOD-523 6000/Tape & Reel
Notes: 6. For packaging details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
7. Dispensed in every other cavity of the tape.
Marking Information
Package Outline Dimensions
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 an y 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.
SOD-523
Dim Min Max
A 0.25 0.35
B 0.70 0.90
C 1.50 1.70
H 1.10 1.30
K 0.55 0.70
L 0.10 0.30
M 0.10 0.20
All Dimensions in mm
Dimensions Value (in mm)
Z 2.3
G 1.1
X 0.8
Y 0.6
C 1.7
LK = Product Type Marking Code
LK
H
C
A
BK
M
L
Z
X
C
GY
Mouser Electronics
Authorized Distributor
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SDM03U40-7