The 1N5819 Schottky Diode is a high‑efficiency rectifier designed for low‑voltage, high‑current applications. With its fast switching speed and low forward voltage drop (~0.2–0.45V), it minimizes power loss and heat generation, making it ideal for DC‑DC converters, reverse polarity protection, freewheeling diodes, and solar/renewable energy circuits. Widely used in Arduino, embedded systems, robotics, and power supply designs, the 1N5819 ensures reliable performance in compact and energy‑sensitive projects.

Specifications

• Type: Schottky Barrier Rectifier Diode

• Part Number: 1N5819

• Maximum Repetitive Peak Reverse Voltage (VRRM): 40V

• Average Rectified Forward Current (IF): 1A

• Peak Surge Current (IFSM): 25A

• Forward Voltage Drop (VF): ~0.2V–0.45V (at rated current)

• Reverse Current (IR): <1mA at 25°C

• Package: DO‑41 (axial lead)

• Applications: Power supplies, DC‑DC converters, reverse polarity protection, solar chargers, robotics

Features

• Low forward voltage drop for high efficiency

• Fast switching speed for modern power electronics

• High surge current capability (25A)

• Compact DO‑41 package for easy PCB or breadboard use

• Reliable performance in low‑voltage, high‑current circuits

• Ideal for Arduino, robotics, and renewable energy projects