B0540W schottky rectifier marking SF, applications for 0.5A surface mount schottky barrier rectifier. 

B0540W schottky rectifier SOD-123 Plastic-Encapsulate Diode.

Features:

1. Low forward voltage drop

2. Guard ring construction for transient protection

3. High conductance

4. Peak repetitive reverse voltag

e: 40V

5. Working peak reverse voltage: 40V

6. DC blocking voltage: 40V

7. RMS reverse voltage: 28V

8. Average rectified output current (@TL= 100°C): 0.5A

9. Operating and storage temperature Range:  -65 °C to +125 °C