DS30397 Rev. 2 - 2 1 of 2 SDM20U30
www.diodes.com
ã Diodes Incorporated
SDM20U30
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
· Low Forward Voltage Drop
· Guard Ring Construction for
Transient Protection
· Negligible Reverse Recovery Time
· Low Reverse Capacitance
· Ultra-Small Surface Mount Package
· Case: SOD-523, 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: LM
· Weight: 0.002 grams (approx.)
Mechanical Data
Maximum Ratings
@ T
A
= 25°C unless otherwise specified
Electrical Characteristics
@ T
A
= 25°C unless otherwise specified
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
30
V
RMS Reverse Voltage
V
R(RMS)
21
V
Mean Rectifying Current (Note 2)
I
O
200
mA
Peak Forward Surge Current 8.3ms Half Sine
I
FSM
1.0
A
Power Dissipation (Note 2)
P
d
150 mW
Thermal Resistance, Junction to Ambient Air (Note 2)
R
qJA
667
°C/W
Operating and Storage Temperature Range
T
j
, T
STG
-65 to +125 °C
Characteristic Symbol Min Typ Max Unit Test Conditions
Reverse Breakdown Voltage
V
(BR)R
30 ¾¾ V
I
R
= 150mA
Forward Voltage Drop
V
F
¾¾
0.35
0.50
V
I
F
= 20mA
I
F
= 200mA
Peak Reverse Current (Note 3)
I
R
¾¾
150
30
mA
mA
V
R
= 30V
V
R
= 10V
Total Capacitance
C
T
¾ 20 ¾ pF
V
R
= 0V, f = 1.0MHz
B
A
C
D
G
E
CATHODE MARK
MARKING CODE
LM
TCUDORPWEN
SOD-523
Dim Min Max
A
1.50 1.70
B
1.10 1.30
C
0.25 0.35
D
0.70 0.90
E
0.10 0.20
G
0.50 0.70
All Dimensions in mm
Ordering Information
Device
Packaging Shipping
SDM20U30-7
SOD-523 3000/Tape & Reel
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.
(Note 4)
