Pn2907 transistor datasheet pdf

The condition of being forward biased is when the base connected to the ground or having no supply on it, and as a signal is provided to base pin it goes reverse biased. The transistor is having DC current gain value of to which shows the amplification capacity of the transistor.

As it is used for the amplification and switching. When the transistor is fully biased, it allows a maximum of mA current through the collector and provide a voltage collector to emitter of 1. When use as a switch, can be operated in saturation region and cut-off region. If we provide ground to the base pin, then the transistor will be in reverse biased and said to be turn ON. If supply is provided to the base pin, it stops conducting current between emitter and collector and said to be in OFF state.

For the protection of transistor, a resistance added in series with it. For finding the value of that resistor, you can use the formula:. Where, the value of V BE will be 5v for this transistor.

The maximum value of providing base current is mA. So, from that you can find the value of resistance to be added in series with it. When use as a amplifier, can be operated in the active region. This transistor is having gain value of which shows the amplification capacity. It is also used for the amplification and switching. When the transistor is fully biased it allows a maximum of mA current through the collector and emitter of 1.

When the base current is removed the transistor is in off state it is called Cut-off region. When transistor is used as switch it works two regions saturation region and cut-off region. By default, this transistor is in ON state, but not to be said perfectly on until base pin is not connect with ground.

As we apply negative current to base pin transistor 2n will be fully biased and said to be turned ON. When we applied positive current to the base transistor turn off.