With no base current the transistor acts as open circuit and the entire supply voltage V1 will appears across it. Under initial conditions the button will be open and no current flows through the base of transistor. The 100Ω resistor is provided for limiting the current through base. The trigger source and power source must share a common ground for the circuit to work. Here we are going to use 2N3055 as a simple switching device to drive a motor and is in common emitter configuration.Īs show in circuit we are using a motor as the load and the gate signal for turning ON the transistor is provided by 5V source with button being the triggering device. The device has good amplifying factor and also the gain is almost linear making 2N3055 one of best solution for power amplifiers.Īs mentioned earlier the 2N3055 can be used for any NPN transistor applications but for understanding the functioning of device let us consider a simple application circuit as shown below. 2N3055 is one of the basic transistors available in the market for cheap and with features being suited for many applications.ĢN3055 is also used in audio power amplifiers.
If you are designing a PCD or Perf board with this component then the following picture from the Datasheet will be useful to know its package type and dimensions.2N3055 is a general purpose NPN power transistor manufactured with the epitaxial base process, mounted in a hermetically sealed metal case. Amplifier modules like Audio amplifiers, signal Amplifier etc.
2n3055 transistor datasheet pdf driver#
2n3055 transistor datasheet pdf series#
Anything more than 5mA will kill the Transistor hence a resistor is always added in series with base pin. As mentioned the biasing current should maximum of 5mA. As discussed a transistor will act as an Open switch during Forward Bias and as a Closed switch during Reverse Bias, this biasing can be achieved by supplying the required amount of current to the base pin. When a transistor is used as a switch it is operated in the Saturation and Cut-Off Region as explained above. When base current is removed the transistor becomes fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around 660 mV. This stage is called Saturation Region and the typical voltage allowed across the Collector-Emitter (V CE) or Base-Emitter (V BE) could be 200 and 900 mV respectively. When this transistor is fully biased then it can allow a maximum of 100mA to flow across the collector and emitter. To bias a transistor we have to supply current to base pin, this current (I B) should be limited to 5mA. The maximum amount of current that could flow through the Collector pin is 100mA, hence we cannot connect loads that consume more than 100mA using this transistor. Note: Complete Technical Details can be found at the BC547 datasheet given at the end of this page.īC549, BC636, BC639, 2N2222 TO-92, 2N2222 TO-18, 2N2369, 2N3055, 2N3904, 2N3906, 2SC5200īC547 transistor has a gain value of 110 to 800, this value determines the amplification capacity of the transistor. Continuous Collector current (I C) is 100mA.BC547 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.
0 kommentar(er)
