1N5822 Schottky Diode 40V 3A (2-Pack)

1N5822 Schottky Diode — 40V / 3A, DO-201AD Package (2-Pack)

The 1N5822 is a high-current Schottky barrier rectifier rated at 40V reverse voltage and 3A continuous forward current, with a low forward voltage drop of 0.39V @ 1A and switching speeds exceeding 1MHz. Its DO-201AD package handles 3× the current of the 1N5819, making it the preferred choice for higher-power motor driver circuits, battery chargers, and DC-DC converters where both low Vf and substantial current handling are required.

Key Specifications

Parameter	Value
Peak Reverse Voltage (Vᴿ)	40V
Forward Current (Iᶠ)	3A continuous
Peak Surge Current (Iᶠₛₘ)	80A (8.3ms)
Forward Voltage Drop (Vᶠ @ 1A)	0.39V
Switching Speed	>1MHz
Package	DO-201AD (axial leads)
Polarity	Silver band = cathode
Manufacturer	Fairchild / ON Semiconductor

1N5822 vs 1N5819 — Which to Choose?

Parameter	1N5819	1N5822
Max Current	1A	3A
Surge Current	25A	80A
Package	DO-41	DO-201AD (larger)
Best For	Signal/low-power circuits	Motor drivers, power supplies

Typical Applications

• Freewheeling diode for high-current motor driver ICs
• Reverse polarity protection in 3A+ power circuits
• Solar panel blocking diode (higher current systems)
• DC-DC converter output rectifier
• Battery charging circuit protection
• High-frequency power supply rectification

Important Note on Package Size

The DO-201AD package has lead diameters up to 0.051″ (1.3mm) — these will not fit standard 0.1″ breadboard holes. For breadboard prototyping, solder thinner gauge leads onto the diode leads, or use a PCB with appropriately sized pads.

Package Contents

• 2× 1N5822 Schottky Diode (DO-201AD, 40V/3A)

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