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.