What does a BC548 transistor do?
Recall, BC548 is a bipolar NPN junction transistor and is considered as a current-controlled device where small current at the base is used to control large current at the collector and emitter terminals. Plus, it can drive loads under 500mA and is available in TO – 92 package.
Can I use BC547 instead of BC548?
Yes, absolutely! The BC547 has the same pinout and characteristics as a BC548 except for two things: The BC547 can tolerate higher voltages on the collector than a BC548. That’s an advantage that would be wasted in BC548 circuits, but it is a difference that is no problem for using the BC547 as a substitute.
How do I use BC548 as a switch?
BC548 TRANSISTOR AS A SWITCH When we apply a high enough current at the base of the transistor, it makes a path for the collector current to go through the base towards the emitter. In order to use the transistor as a switch, it must be driven into the saturation region with enough base current.
Is BC547 same as BC548?
This group of NPN transistors share many specifications and characteristic curves, but differ in voltage ratings – the BC546 and BC547 are essentially the same as the BC548 but selected with higher breakdown voltages, while the BC549 is a low noise version, and the BC550 is both high-voltage and low-noise.
How do you know if a transistor is working?
Hook the positive lead from the multimeter to the to the BASE (B) of the transistor. Hook the negative meter lead to the EMITTER (E) of the transistor. For an good NPN transistor, the meter should show a voltage drop between 0.45V and 0.9V. If you are testing PNP transistor, you should see “OL” (Over Limit).
What does BC mean in BC547 transistor?
The BC in BC107 transistor stands for silicon base,lower power, audio frequency transistor. Image Source: Google. The BC in BC107 transistor stands for silicon base,lower power, audio frequency transistor. Image Source: Google.
How do I use BC547 as a switch?
Useful Steps
- Place Transistor on a breadboard.
- Connect Emitter to the ground of the battery.
- Add LED & 330 Ohm Resistor to Collector of BC547.
- Connect 1k Resistor and Switch to Base of transistor.
- Power up the circuit with 9V Battery.
What can I use instead of BC547?
BC547 Transistor Equivalent BC547 transistor can be used as an alternative to many transistors: BC548, BC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055 and 2N3904 all are BC547 transistor equivalent.