1N5819 Schottky Barrier Diode ( 1 pcs)

The 1N5819 Schottky Barrier Diode (1 Pc) is a high-efficiency Schottky barrier rectifier diode designed for fast switching, low power loss, and reliable circuit protection in a wide range of electronic applications. It features a maximum repetitive reverse voltage of 40V and a maximum average forward current of 1A, making it ideal for low- to medium-power circuits such as power supplies, battery-powered devices, voltage regulators, and DC-DC converter applications. Unlike conventional silicon diodes, the 1N5819 uses Schottky barrier technology, which provides a low forward voltage drop (typically 0.2V to 0.45V, depending on the current), resulting in improved power efficiency, reduced heat generation, and longer battery life in portable electronic devices.

The 1N5819 offers ultra-fast switching performance with virtually zero reverse recovery time, making it suitable for high-frequency switching circuits such as Switched Mode Power Supplies (SMPS), buck and boost converters, solar charging circuits, and battery charging systems. It is also commonly used as a freewheeling (flyback) diode across inductive loads like relays, motors, and solenoids to suppress back EMF and protect sensitive electronic components from voltage spikes. Its low leakage current and stable electrical characteristics ensure reliable and consistent operation under various load conditions.

The diode is packaged in a durable DO-41 axial through-hole package, providing excellent mechanical strength, easy PCB mounting, and efficient heat dissipation. Its through-hole design makes it convenient for soldering on printed circuit boards, breadboards, and prototype circuits. The 1N5819 Schottky Barrier Diode is widely used by students, hobbyists, technicians, and engineers in Arduino projects, Raspberry Pi applications, robotics, LED drivers, automotive electronics, renewable energy systems, power management circuits, and electronic repair work. Its combination of low forward voltage, fast switching speed, high efficiency, and dependable performance makes it one of the most popular Schottky diodes for modern electronic circuit designs.

Features

• Model: 1N5819

• Type: Schottky Barrier Rectifier Diode

• Maximum Repetitive Reverse Voltage: 40V

• Maximum Average Forward Current: 1A

• Low forward voltage drop (0.2V–0.45V typical)

• Ultra-fast switching speed

• High efficiency with low power loss

• Low heat generation

• Low reverse recovery time

• DO-41 axial through-hole package

• Easy PCB mounting

• Reliable and long service life

Applications

• Switched Mode Power Supplies (SMPS)

• DC-DC Buck Converter Circuits

• DC-DC Boost Converter Circuits

• Battery Charging Systems

• Solar Power Applications

• Reverse Polarity Protection

• Flyback and Freewheeling Diode Circuits

• Relay and Motor Protection

• LED Driver Circuits

• Voltage Regulator Circuits

• Arduino and Raspberry Pi Projects

• Robotics and Automation

• DIY Electronics Projects

• PCB Prototyping

• Automotive Electronics

• Electronic Equipment Repair

• Portable Electronic Devices

• Industrial Power Management Systems

Package Includes

1 × 1N5819 Schottky Barrier Diode