Owner manual

SDM40E20L /S /C /A
Document number: DS30298 Rev. 11 - 2
1 of 3
www.diodes.com
June 2008
© Diodes Incorporated
SDM40E20L /S /C /
A
DUAL SURFACE MOUNT SCHOTTKY BARRIER DIODE
Features
• Very Low Forward Voltage Drop
• Guard Ring Construction for Transient Protection
• High Conductance
• Lead, Halogen and Antimony Free, RoHS Compliant
"Green" Device (Notes 4, 5 and 6)
Mechanical Data
• Case: SOT-23
• Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020D
• Polarity: See Diagram
• Leads: Solderable per MIL-STD-202, Method 208
• Terminals: SDM40E20L/S/A Finish ⎯ Matte Tin Finish
annealed over Alloy 42 leadframe.
SDM40E20LC Finish ⎯ Matte Tin Finish
annealed over CDA194 leadframe.
• Marking Information: See Page 2
• Ordering Information: See Page 2
• Weight: 0.008 grams (approximate)
Top View
SDM40E20LA
SDM40E20LS
SDM40E20LC
Maximum Ratings @T
A
= 25°C unless otherwise specified
Single phase, half wave, 60Hz, resistive or inductive load.
For capacitance load, derate current by 20%.
Characteristic Symbol Value Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
V
RRM
V
RWM
V
R
20 V
RMS Reverse Voltage
V
R(RMS)
14 V
Forward Continuous Current (Note 1)
I
FM
0.4 A
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimposed on rated load
I
FSM
2 A
Thermal Characteristics
Characteristic Symbol Value Unit
225 Power Dissipation (Note 1)
(Note 2)
P
D
300
mW
444 Typical Thermal Resistance Junction to Ambient (Note 1)
(Note 2)
R
θ
JA
333
°C/W
Operating and Storage Temperature Range
T
J,
T
STG
-65 to +125
°C
Electrical Characteristics @T
A
= 25°C unless otherwise specified
Characteristic Symbol Min Typ Max Unit Test Conditions
Reverse Breakdown Voltage (Note 3)
V
(BR)R
20
⎯
⎯
V
I
R
= 0.5mA
Forward Voltage Drop
V
F
⎯
⎯
⎯
⎯
0.310
0.430
V
I
F
= 0.1A
I
F
= 0.5A
Leakage Current (Note 3)
I
R
⎯
⎯
⎯
⎯
100
250
μA
V
R
= 10V
V
R
= 20V
Total Capacitance
C
T
⎯
120
⎯
pF
f = 1MHz, V
R
= 0VDC
Notes: 1. Device mounted on FR-5 1.0 x 0.75 x 0.062 inch PCB pad layout.
2. Device mounted on Alumina PCB, 0.4 inch x 0.3 inch x 0.024 inch pad layout.
3. Short duration pulse test used to minimize self-heating effect.
4. No purposefully added lead. Halogen and Antimony Free.
5. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
6. Product manufactured with Green Molding Compound and does not contain Halogens or Sb
2
O
3
Fire Retardants.
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