The BC and BCB are silicon planar epitaxial NPN transistors in TO metal case. They are suitable for use in driver stages, low noise input stages and . DESCRIPTION. The BC and BCB are silicon Planar. Epitaxial NPN transistors in TO metal case. They are suitable for use in driver stages, low. Transistor+BC+ datasheet, cross reference, circuit and application notes in pdf format.
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To make things simple I have shown a simplified circuit to make a transistor as switch. Complete Technical Details can be found at the 2NA datasheet given at the end of this page. But there are two important features that datasheeh both.
When base current is removed the transistor darasheet fully off, this stage is called as the Cut-off Region and the Base Emitter voltage could be around mV.
How to use 2NA This transistor like all can be used either as a switch or as an amplifier. I have used a base voltage of 5V and a value of 1K as current limiting resistor.
When this transistor is fully biased then it can allow a maximum of mA to flow across the collector and emitter. To bias a transistor we have to supply current to base pin, this current I B should be limited to 5mA.
BC107B Datasheet, Equivalent, Cross Reference Search
In actual circuit modifications might be required. The Base-Emitter voltage of this transistor is 6V so you just have to supply this voltage across the base and emitter of the transistor to induce a base current into the transistor. Cb1078 by webmaster on 11 December So if you looking for an NPN transistor that could switch loads of higher current then 2NA might the right choice for your project.
This transistor like all can be used either as a switch or as an amplifier. Applications Can be used to switch high current upto mA loads It can also be used in the various switching applications. However one important thing to notice is the Base resistor a.
BC Datasheet, PDF – Datasheet Search Engine
TL — Programmable Reference Voltage. As the name suggests this resistor will limit the current flowing through the transistor to prevent it from damaging. Note that the motor here draws about mA from the 12V power source, since the 2N has collector current rating upto mA this circuit is possible had it been a BC the transistor should have been burnt.
The value for this resistor can be calculated using the formula. This transistor will make it forward biased and thus closes the connection between collector and emitter. 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.