SDM20U40 Datasheet, PDF (1/2 Pages) Diodes Incorporated – 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
· Lead Free By Design/RoHS Compliant (Note 1)
· "Green" Device, Note 3 and 4
· Qualified to AEC-Q101 Standards for High Reliability
Mechanical Data
· Case: SOD-523
· Case Material: Molded Plastic, "Green" Molding
MARKING CODE
Compound, Note 4. 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: S4
· Ordering Information: See Last Page
· Weight: 0.002 grams (approximate)
Product specification
SDM20U40
CATHODE MARK
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
0.55 0.65
C
E
All Dimensions in mm
D
G
Maximum Ratings ^{@ TA = 25°C unless otherwise specified}
Characteristic
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
RMS Reverse Voltage
Forward Continuous Current (Note 2)
Non-Repetitive Peak Forward Surge Current
Operating and Storage Temperature Range
@ t £ 1.0s
Symbol
V_RRM
VRWM
VR
V_R(RMS)
I_FM
IFSM
T_j, T_STG
Value
40
28
250
1.0
-65 to +125
Unit
V
V
mA
A
°C
Thermal Characteristics ^{@ TA = 25°C unless otherwise specified}
Characteristic
Power Dissipation (Note 2)
Thermal Resistance, Junction to Ambient Air (Note 2)
Symbol
Pd
R_qJA
Value
150
667
Unit
mW
°C/W
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.twtysemi.com
3. Diodes Inc.'s "Green" Policy can be found on our website at http://www.twtysemi.com
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.
http://www.twtysemi.com
[e-mail]
4008-318-123
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