2N Transistor Datasheet pdf, 2N Equivalent. Parameters and Characteristics. 2N Silicon NPN Transistor. Data Sheet. Description. Semicoa Semiconductors offers: • Screening and processing per MIL-PRF Appendix E. DATA SHEET NPN switching transistor in a TO metal package. collector- emitter voltage open base. 2N −. V. 2NA. −.

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To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA by using a transistor to the base pin.

When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. The maximum amount of current that could transistkr through the Collector datasheett is mA, hence we cannot connect loads that consume more than mA using this transistor. Amplifier modules like Audio amplifiers, signal Amplifier etc. In our case for a collector current of mA we have to pass a base current of 16mA.

But this calculation will lead to the closest value to start with. Current Drains out through emitter, normally connected to ground.

2N Datasheet(PDF) – Microsemi Corporation

Overall it is just another small signal transistor which is commonly used in switching and amplifying circuits. This stage is called Saturation Region. Another important thing to keep in mind, while using a transistor as switch is the base resistor.


So the value if R B will be. The value of this current can be calculated by the required amount of current that will be consumed by the load. Complete Technical Details can be found at the datasheet given at the end of this page. To make this current flow through the transistor the value of base current I B can be calculated using the 2n22219 formula: TL — Programmable Reference Voltage.

Where Vcc is the transistpr on which the load operates and V BE is the voltage across the Base and Emitter which in our case according to the data sheet 1. This resistor is connected to the base pin of the transistor to limit the current flowing through the base. Since transistor is of NPN the load to be switched should be connected to the collector and the emitter should be connected to the ground as show in the figure below.

The 2N is a NPN transistor and is normally used as a switch in many circuits. But it comes in a metal can package and can operate on voltages slightly higher than what a 2N can handle.

To make this current flow through the transistor the value of base current I B can be calculated using the below formula:. Submitted by admin on 21 June So if you looking for an NPN transistor that could switch loads or for decent amplification then 2N might the right choice for your project.


Here lets us assume the load here consumes around mA maximum so our collector current I C mA. As we know the transistor is a current controlled device meaning, we have pass some current I B thorough the base of the transistor to turn it on.

2N2219 Datasheet, Equivalent, Cross Reference Search

So to calculate the resistor value of the base we can use the formulae. However this vale will not be very accurate because the transistor will have an internal voltage drop across the collector current, so it mostly experimental to get the maximum current from the transistor. Current flows in through collector, normally connected to load. Where h FE, is the current gain of the transistor which in our case is When base transidtor is removed the transistor becomes fully off, this catasheet is called as the Cut-off Region and the Base Emitter voltage could be around mV.