What does a BC549 transistor do?
BC549 is a NPN transistor hence the collector and emitter will be left open (Reverse biased) when the base pin is held at ground and will be closed (Forward biased) when a signal is provided to base pin. When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter.
Can I use BC548 instead of BC549?
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.
What is BC549?
BC549 is a general purpose bipolar junction transistor that belongs to NPN transistor family. It contains three pins where small current change in one terminal produces a much large current change across other terminals. In other words, it is nothing but a current booster.
Which transistor is used in Tesla coil?
A high current high frequency transistor like 2N2222 is used to supply current through the primary coil (violet colour).
What is the purpose of the BC549C transistor?
BC549C Transistor. The BC549C is an NPN transistor belonging to a group of general-purpose NPN semiconductors consisting of BC547, BC548, and BC549. These transistors are utilised in audio frequency, and small signal directly coupled preamplifiers. The general-purpose range of transistors is a good substitute for basic non-critical audio…
Is the BC549C the same as The BC107?
The general-purpose range of transistors is a good substitute for basic non-critical audio applications, as these transistors are similar and equivalents to each other. These transistors are the direct modern equivalent replacements to the earlier BC107, BC108, and BC109. The most noticeable difference is in the packaging and pin configuration.
What can the BC549 NPN be used for?
The BC549 has very low Continuous current of 100mA hence it cannot be used to switch heavy loads. But since it has a base trigger voltage of only 5V it can be easily controlled through 5V GPIO pins of Microcontrollers and Microprocessors. So it can be used in places where the load current is less than 100mA.
What is the current gain on a BC549?
The BC549 series subdivides further into two groups B, and C. This suffix indicates the current gain. With Vce at 5 V, and Ic at 10 µA, the current gain (hFE) for B is typically 150, whilst for C is 270. With Vce at 5 V, and Ic at 2 mA, the current gain (hFE) for B is typically 290, whilst for C is 500.