2N Transistor Datasheet pdf, 2N Equivalent. Parameters and Characteristics. 2N / MMBT N. Discrete POWER & Signal. Technologies. PNP General Purpose Amplifier. This device is designed as a general purpose amplifier and. 2N Absolute Maximum Ratings* TA = 25°C unless otherwise noted. *These ratings are limiting values above which the serviceability of any semiconductor.

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How to Use 2N Transistor? The current flow through collector is determined by the base current to a certain point.

National Semiconductor

Current drawn by load is low. Consider the button is pressed: Before going for working let us revise the typical characteristics of a PNP transistor: So with higher the gate current we have lower conduction resistance and higher the collector current.

These types of circuits can be seen in telephone systems. The moment the button is released the base current will reaches zero, there by turning OFF the transistor and the motor. The PNP transistor conducts only when a threshold current flows out the base, so the instant the base current reaches datashdet the device stops conducting.

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In the above circuit we are using 2N as a simple switching device and the switching load being small DC motor.

2N Transistor Pinout, Features & Datasheet

The circuit is powered from a negative voltage source of -5V DC as shown in diagram. Consider the button is not pressed: When the base current flows out from the device it will start conducting as stated in characteristics.

Submitted by admin on 26 November The device does not conduct when the current does not flow out of the base of the transistor or the device conducts only when the base current daatsheet flows out of the device reaches a threshold. When the button is not pressed there will be no base current and with no base current the transistor will not conduct based on the characteristics of PNP transistor.

TL — Programmable Reference Voltage.

In the presence of the voltage the motor will start rotating and it will stay like that until the button is released. When the transistor does not conduct the entire voltage appears across it and the motor will be OFF. In the presence of dagasheet collector current flow a voltage appears across the motor connected in series with collector pin.

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2N Datasheet(PDF) – Fairchild Semiconductor

When the button is pressed, the base of 2N will be connected to datashwet power supply and so there will be a path for the current flow. Also the component is cheap and easy to work with.

It can also be used when you want a simple switching device for high voltage loads. In high speed switching the trigger is provided by microcontroller instead of button.