BU808 NPN Darlington Transistor 700V 8A 42W TO-220
Prices updated: 13 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 Makers Electronics | BU808 Transistor Darlington NPN 8A/700V 42W TO-220 | 20 EGP | View in store |
Price history
Lowest daily price, last 90 days
Lowest price recorded: 20 EGP
About this product
The BU808 is an NPN Darlington power transistor in a TO-220 package, rated for 700 V collector-emitter voltage, 8 A collector current and 42 W total dissipation at 25 °C case temperature. It suits high-voltage switching applications and needs a heatsink at higher power levels.
Specifications
- Polarity
- NPN Darlington
- Collector-emitter voltage (VCEO)
- 700 V
- Collector-base voltage (VCBO)
- 1400 V
- Collector current (IC)
- 8 A
- Peak collector current (ICM, <5 ms)
- 10 A
- Total dissipation
- 42 W at Tc = 25 °C
- Max junction temperature
- 150 °C
- Package
- TO-220
Frequently asked questions
What is the price of BU808 NPN Darlington Transistor 700V 8A 42W TO-220 in Egypt?
BU808 NPN Darlington Transistor 700V 8A 42W TO-220 currently costs 20 EGP in Egypt.
Where can I buy BU808 NPN Darlington Transistor 700V 8A 42W TO-220 in Egypt?
BU808 NPN Darlington Transistor 700V 8A 42W TO-220 is available from Makers Electronics. Compare the offers above to find the best price.
Does the BU808 need a heatsink?
At higher power or current, yes. The TO-220 tab is typically connected to the collector, so use an insulating kit when mounting on a shared heatsink.
How should I drive it from a circuit?
A Darlington has high current gain but a higher base-emitter drop and slower switching than a single transistor. Use a base resistor or driver stage, and add a flyback diode when switching inductive loads.
