SPICE MODEL: SDM20U40
SDM20U40
Lead-free Green
SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
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Low Forward Voltage Drop
Guard Ring Construction for Transient Protection
Negligible Reverse Recovery Time
Low Reverse Capacitance
SOD-523
CATHODE MARK
Ultra-Small Surface Mount Package
Lead Free By Design/RoHS Compliant (Note 1)
"Green" Device, Note 3 and 4
Dim
A
Min
1.50
1.10
0.25
0.70
0.10
0.55
Max
1.70
1.30
0.35
0.90
0.20
0.65
B
Qualified to AEC-Q101 Standards for High Reliability
C
Mechanical Data
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D
Case: SOD-523
E
MARKING CODE
Case Material: Molded Plastic, "Green" Molding
Compound, Note 4. UL Flammability Classification
Rating 94V-0
G
E
C
D
All Dimensions in mm
G
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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
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Marking Code: S4
Ordering Information: See Last Page
Weight: 0.002 grams (approximate)
@ TA = 25°C unless otherwise specified
Maximum Ratings
Characteristic
Symbol
Value
Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
V
40
VR(RMS)
IFM
V
mA
A
RMS Reverse Voltage
28
250
Forward Continuous Current (Note 2)
Non-Repetitive Peak Forward Surge Current @ t £ 1.0s
Operating and Storage Temperature Range
IFSM
1.0
Tj, TSTG
-65 to +125
°C
@ TA = 25°C unless otherwise specified
Thermal Characteristics
Characteristic
Power Dissipation (Note 2)
Symbol
Value
150
Unit
mW
Pd
RqJA
°C/W
Thermal Resistance, Junction to Ambient Air (Note 2)
667
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. Diodes Inc.'s "Green" Policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
4. 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.
DS30393 Rev. 5 - 2
1 of 3
SDM20U40
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ã Diodes Incorporated