DS30392 Rev. 1 - 2 1 of 2 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
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
(JEDEDC method)
IFSM 200 mA
Power Dissipation (Note 2) Pd150 mW
Thermal Resistance, Junction to Ambient (Note 2) RqJA 667 °C/W
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 ¾¾VIR = 10uA
Forward Voltage Drop VF¾290 370 mV IF = 1mA
Peak Reverse Current (Note 3) IR¾¾0.5 mAVR = 30V
Total Capacitance Cj¾2¾pF VR= 1V, f = 1.0 MHz
@ TA = 25°C unless otherwise specified
TCUDORPWEN
·Case: SOD-523, Molded Plastic
·Case material - UL Flammability Rating
Classification 94V-0
·Moisture sensitivity: Level 1 per J-STD-020A
·Terminals: Finish - Matte Tin (Note 1)
Solderable per MIL-STD-202, Method 208
·Polarity: Cathode Band
·Marking Code: LK
·Weight: 0.002 grams (approx.)
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
G0.50 0.70
All Dimensions in mm
Device Packaging Shipping
SDM03U40-7 SOD-523 3000/Tape & Reel
(Note 4)
Ordering Information
Note: 1. If lead-bearing terminal plating is required, please contact your Diodes Inc. sales representative for availability and minimum
order details.
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 so as to minimize self-heating effect.
4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
SPICE MODEL: SDM03U40
DS30392 Rev. 1 - 2 2 of 2 SDM03U40
www.diodes.com
TCUDORPWEN
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
Fi
g
.5 T
y
pical Reverse Recover
y
Time Characteristics
0.1
1
10
100
0510 15 20 25
C , TOTAL CAPACITANCE (pF)
T
V , REVERSE VOLTAGE (V)
R
Fi
g
. 4 Total Capacitance vs. DC Volta
g
e
f = 1MHz
0 5 10 15 20 25 30 35
I , INSTANTANEOUS REVERSE CURRENT (A)
R
V , INSTANTANEOUS REVERSE VOLTAGE (V)
R
Fi
g
.3 T
y
pical 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
Fi
g
.2 T
y
pical Forward Characteristics
T = +125ºC
A
T = +75ºC
A
T = +25ºC
A
100m
1m
10m
1
0
50
025
50 75 100 125
P , POWER DISSIPATION (mW)
D
T , AMBIENT TEMPERATURE (°C)
A
Fi
g
. 1 Deratin
g
Curve
100
200
150
