Bipolar (BJT) Transistor NPN 30V mA MHz mW Through Hole TO The 2N transistor is very much similar to the commonly used NPN transistor 2N, but it comes in a metal can package and can operate on voltages. 7 May Sep 2. Philips Semiconductors. Product specification. NPN switching transistors. 2N; 2NA. FEATURES. • High current (max.
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The maximum amount of current that could flow through the Collector pin is mA, hence we cannot connect loads that consume more than mA using this transistor. Where h FE, is the current gain of the transistor which in our case is When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter.
As we know the transistor is a current controlled device meaning, we have pass some 2b2219 I B thorough the base of the transistor to turn it on. Current flows in through collector, 2nn2219 connected to load. When base current is removed the transistor becomes fully off, this stage is 2h2219 as the Cut-off Region and the Base Emitter voltage could be around mV.
Where Vcc is the voltage 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. But it comes in a metal can package and can operate on voltages slightly higher than what a 2N can handle.
So the value if R B will be. Top menu About Us Advertise. Next Article Timer IC.
So to calculate the resistor value of the base we can use the formulae. Complete Technical Details can be found at the datasheet 2n22119 at the end of this page. In our case for a collector current of mA we have to pass a base current of 16mA.
Overall it is just another small signal transistor which is commonly used in switching and amplifying circuits.
2N2219 Bipolar Transistor
But this calculation will lead to the closest value to start with. 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.
Another important thing to keep in mind, while using a transistor as switch is the base resistor. Top menu About Us Contact. However this vale will not be very 2n219 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.
2N2219 NPN Transistor
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. To make this current flow through the transistor the value of base current I B can be calculated using the below formula:. So if you looking for an NPN transistor that could switch loads or for decent 2b2219 then 2N might the right choice for your project.
The 2N is a NPN transistor and is normally used as a switch in many circuits. Current Drains out through emitter, normally connected to ground. This resistor is connected to the base pin of the transistor to limit the current flowing through the base. 2n221
2N datasheet – NPN Transistor, Package : TO
The value of this current can be calculated by the required amount of current that will be consumed by the load. This stage is called Saturation Region.
Skip to main content. Here lets us assume the load here consumes around mA maximum so our collector current I C mA.