20pcs SB540 5A 40V Schottky Diodes for Power Rectification and Reverse Polarity Protection

Pack of 20 SB540 5A 40V Schottky diodes for DC rectification and reverse polarity protection in 12V automotive power supplies and systems. Fast switching and low voltage drop (~0.55V) minimize losses, reduce heat generation, and improve efficiency in compact packages. Axial DO-201AD form factor with ring-marked cathode, easy soldering to pad boards and through-hole mounting; robust silicon for long life. Ideal for battery isolators, motor drivers, relay coils, DC converters, LED drivers, chargers, and solar controllers. Useful in workshops, home repairs, lab courses, and maker projects; 20 pieces for series prototyping, spare parts, and kits.