The 2N is a commonly available PNP bipolar junction transistor used for general purpose low-power amplifying or switching applications. It is designed for low to medium current , low power , medium voltage , and can operate at moderately high speeds. This transistor was made by several manufacturers; Texas Instruments released a data sheet for their version of this part dated March For the 2N, the gain—bandwidth product under specified test conditions, or f T , is Megahertz , which is notionally the frequency at which the current gain drops to one.
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This is a Bipolar PNP transistor available in metal can package, having a high value of current mA with low voltage of 40v. 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.
There are three configuration used in an amplifier circuit are common emitter, common base, common collector. This transistor is used where low power amplification is needed. It can also amplifies the power and current.
Amplification factor usually determined in term of power, for calculating the current gain we use the formula:. Subscribe to stay updated with industry's latest Electronics components and news.
Pin configuration Pin No. Applications Where amplification of low power is needed we use this transistor. It can also be used in the various switching applications. Used for making siren or dual Led or Lamp flasher. Can be used in Darlington Pair. Component Datasheet. Tags PNP Transistor. Get Our Weekly Newsletter!
2N2907 Bipolar Transistor
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