1N5822 Schottky Rectifier Diode ⚡

The 1N5822 is a high-current, low-voltage Schottky rectifier diode designed for efficient power conversion with a low forward voltage drop. Housed in a robust DO-201AD through-hole package, it supports fast switching and operates reliably over a wide temperature range. Ideal for Arduino and Raspberry Pi power stages, microcontroller projects, DC power supplies, and electronics modules, this device helps minimize losses and heat in low-voltage rectification applications.

Key Features 🌟

• Low Vf for high efficiency: typically 0.5 V at 3 A, reducing power loss in low-voltage rails.
• 3 A average rectified current for compact power designs and general-purpose rectification.
• Fast switching behavior suitable for high-frequency converters and protection circuits.
• Wide operating temperature: -65°C to +125°C for reliable performance in harsh environments.
• Rugged DO-201AD package with through-hole leads for easy assembly and prototyping.

Technical Specifications 📐

• Diode Type: Schottky Rectifier
• DC Reverse Voltage (VR), Max: 40 V
• Average Rectified Current (Io): 3 A
• Forward Voltage (Vf), Max: 0.5 V @ 3 A
• Recovery Time: Standard recovery > 500 ns @ 25°C, Io = 1 A
• Reverse Leakage Current (IR): 10 µA @ 40 V
• Junction Capacitance (Cj): 250 pF @ VR = 4 V, f = 1 MHz
• Mounting Type: Through Hole
• Package: DO-201AD
• Operating Temperature: -65°C ~ +125°C

Typical Applications 🧩

• Power rectification in low-voltage DC supplies and adapters.
• Output rectifier in DC-DC converters (buck/boost) for improved efficiency.
• Freewheeling and flyback paths for motors, relays, and inductive loads.
• Reverse-polarity protection for battery-powered electronics modules.
• OR-ing diodes in redundant or dual-supply systems.
• Prototyping with Arduino, Raspberry Pi, and other microcontroller boards.

Design Notes for Engineers 🔧

• Verify that VR (40 V) exceeds your maximum reverse voltage in-circuit with margin.
• Account for Vf drop (~0.5 V at 3 A) when designing low-voltage rails (e.g., 5 V or 3.3 V).
• Ensure proper thermal management; derate current at elevated ambient temperatures.
• Check ripple current and surge conditions against the rectifier’s average and peak ratings.

With its robust construction and dependable performance, the 1N5822 Schottky diode is a versatile choice for a wide range of electronics components and power conversion designs.