BC549 NPN Bipolar Transistor TO-92 (30V, 100mA)
Prices updated: 12 Oct 2026
Compare prices
| Store | product | Price | View in store |
|---|---|---|---|
 Makers ElectronicsCheapest | BC549 NPN Bipolar Transistor TO-92 (30V – 100mA) | 0.75 EGP | View in store |
 Future Electronics | BC549 Transistor (30V, 0.1A) | 2 EGP | View in store |
Price history
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Lowest price recorded: 0.75 EGP
About this product
The BC549 is a general-purpose NPN bipolar transistor in a TO-92 package, rated for low-voltage, low-current use. It supports 30 V collector-emitter and 100 mA continuous collector current, with a DC current gain of 420 to 800. It is commonly used for signal amplification and low-current switching in hobby and student circuits.
Specifications
- Transistor type
- NPN
- Collector-emitter voltage (VCEO)
- 30 V
- Collector-base voltage (VCBO)
- 30 V
- Emitter-base voltage (VEBO)
- 5 V
- Continuous collector current (IC)
- 100 mA
- DC current gain (hFE)
- 420 to 800
- Transition frequency (fT)
- 100 MHz
- Package
- TO-92
Frequently asked questions
What is the price of BC549 NPN Bipolar Transistor TO-92 (30V, 100mA) in Egypt?
BC549 NPN Bipolar Transistor TO-92 (30V, 100mA) currently costs between 0.75 and 2 EGP across 2 offers in Egypt.
Where can I buy BC549 NPN Bipolar Transistor TO-92 (30V, 100mA) in Egypt?
BC549 NPN Bipolar Transistor TO-92 (30V, 100mA) is available from Makers Electronics and Future Electronics. Compare the offers above to find the best price.
How do I identify the pins of the BC549?
The listing gives the pin functions as emitter (pin 1), base (pin 2), and collector (pin 3). The physical order on a TO-92 package depends on the flat-side orientation and the manufacturer, so confirm the layout in the datasheet before wiring.
How can BC549 switch an LED or a small relay?
Use it as a low-side NPN switch: connect the load between the supply and the collector, the emitter to ground, and drive the base through a resistor from the microcontroller. Keep the load current within the 100 mA rating. Add a flyback diode across any relay coil.
