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B0540WS
Document number: DS30524 Rev. 8 - 2
1 of 3
www.diodes.com
May 2008
? Diodes Incorporated
B0540WS
SURFACE MOUNT SCHOTTKY BARRIER RECTIFIER
Features
?
Low Forward Voltage Drop
?
Guard Ring Construction for Transient Protection
?
High Conductance
?
Lead Free By Design/RoHS Compliant (Note 3)
?
"Green" Device (Note 4)
Mechanical Data
?
Case: SOD-323
?
Case Material: Molded Plastic, "Green" Molding Compound.
UL Flammability Rating Classification 94V-0
?
Moisture Sensitivity: Level 1 per J-STD-020D
?
Polarity: Cathode Band
?
Terminals: Finish - Matte Tin Annealed Over Alloy 42
leadframe. Solderable per MIL-STD-202, Method 208
?
Marking Information: See Page 2
?
Ordering Information: See Page 2
?
Weight: 0.004 grams (approximate)
Top View
Maximum Ratings
@TA
= 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
VRRM
VRWM
VR
40
V
RMS Reverse Voltage
VR(RMS)
28
V
Average Rectified Output Current
IO
0.5
A
Non-Repetitive Peak Forward Surge Current
8.3ms single half sine-wave superimposed on rated load
IFSM
3
A
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 1)
PD
235
mW
Typical Thermal Resistance Junction to Ambient (Note 1)
RθJA
426
°C/W
Operating and Storage Temperature Range
TJ, TSTG
-40 to +125
°C
Electrical Characteristics
@TA
= 25°C unless otherwise specified
Characteristic
Symbol
Min
Typ
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 2)
V(BR)R
40
?
?
V
IR
= 1mA
Forward Voltage
VF
?
285
480
300
550
mV
IF
= 10mA
IF
= 500mA
Reverse Current (Note 2)
IR
?
?
1.0
2.0
3
5
μA
μA
VR
= 10V
VR
= 30V
Total Capacitance
CT
?
?
125
20
?
?
pF
pF
VR
= 0V, f = 1.0MHz
VR
= 10V, f = 1.0MHz
Notes: 1. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website at http://www.diodes.com/datasheets/ap02001.pdf.
2. Short duration pulse test used to minimize self-heating effect.
3. No purposefully added Lead.
4. Diodes Inc.'s "Green" policy can be found on our website at http://www.diodes.com/products/lead_free/index.php.
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