BY399 Fast Recovery Rectifier Diode 3A 800V
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | BY399 Fast Recovery Diode 3A 800V | 3.5 EGP | View in store |
 Future Electronics | Diode BY399 (3A – 800V) Fast Recovery | 5 EGP | View in store |
Price history
Lowest daily price, last 90 days
Not enough price history yet.
Lowest price recorded: 3.5 EGP
About this product
The BY399 is a 3 A, 800 V fast recovery rectifier diode for rectifying medium-frequency signals, including snubber and bootstrap circuits. It is a commercial-grade part suited to general rectifier designs.
Specifications
- Type
- Fast recovery rectifier
- Max average forward current
- 3 A
- Reverse voltage
- 800 V
- Grade
- Commercial
Frequently asked questions
What is the price of BY399 Fast Recovery Rectifier Diode 3A 800V in Egypt?
BY399 Fast Recovery Rectifier Diode 3A 800V currently costs between 3.5 and 5 EGP across 2 offers in Egypt.
Where can I buy BY399 Fast Recovery Rectifier Diode 3A 800V in Egypt?
BY399 Fast Recovery Rectifier Diode 3A 800V is available from Makers Electronics and Future Electronics. Compare the offers above to find the best price.
Can the BY399 be used for mains rectification?
Its 800 V reverse rating is well above the peak of a 230 V AC mains supply (about 325 V), so it can be used in rectifier stages. Make sure the average current stays within 3 A and use a suitable bridge or heatsink for your load.
Is the BY399 suitable for high-frequency switching power supplies?
It is rated for medium-frequency rectification. For high-frequency switch-mode designs, an ultrafast rectifier or a Schottky diode is usually a better choice, since their reverse recovery is faster.
