1N5821 Schottky Diode 30V 3A
Currently unavailable
No store has this product in stock right now. Prices below are the last ones we recorded.
Prices updated: 13 Oct 2026
Price history
Lowest daily price, last 90 days
Not enough price history yet.
About this product
The 1N5821 is a Schottky barrier rectifier diode rated for 3 A average forward current and 30 V reverse voltage. Its low forward voltage drop compared with standard silicon diodes makes it suitable for reverse polarity protection, freewheeling across inductive loads and low-voltage rectification.
Specifications
- Type
- Schottky barrier rectifier
- Average forward current
- 3 A
- Reverse voltage
- 30 V
- Package
- DO-201AD
Frequently asked questions
Can I use it as a flyback diode for a 12 V relay?
Yes. Mount it across the relay coil with the banded cathode toward the positive supply. Its 30 V reverse rating gives margin on 12 V circuits.
Does the forward voltage drop affect my circuit?
Yes, a little. The forward drop reduces the voltage delivered to the load, so account for it in low-voltage designs, such as when using it for reverse polarity protection in series with the supply.
