BC108 Transistor: Difference between revisions
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The input is connected to the Base via a limiting resistor (typically 1K). The Emitter is connected to the negative (-ve) supply (0V). | =====Description===== | ||
The [https://en.wikipedia.org/wiki/BC548 '''BC108'''] Collector is connected to the positive ''(+ve)'' supply via the load. NB: If the load is inductive i.e. has coil windings such as a relay, solenoid or motor, then it is usual to connect a diode across it to prevent the Back EMF from damaging the transistor. ''(Cathode to supply)''. | |||
=====Features and Applications===== | |||
The input is connected to the Base via a limiting resistor ''(typically 1K)''. The Emitter is connected to the negative ''(-ve)'' supply ''(0V)''. | |||
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* bCurrent handling capacity 300 mAmps max. | * bCurrent handling capacity 300 mAmps max. | ||
* Amplification (gain) greater than 125. | * Amplification (gain) greater than 125. | ||
{{Transistor & IC Buyers Guide}} | |||
[[Category:Secondary]] | [[Category:Secondary]] | ||
[[Category:Electronics Components]] | [[Category:Electronics Components]] | ||
Revision as of 12:24, 3 July 2016
Description
The BC108 Collector is connected to the positive (+ve) supply via the load. NB: If the load is inductive i.e. has coil windings such as a relay, solenoid or motor, then it is usual to connect a diode across it to prevent the Back EMF from damaging the transistor. (Cathode to supply).
Features and Applications
The input is connected to the Base via a limiting resistor (typically 1K). The Emitter is connected to the negative (-ve) supply (0V).
Uses: As current amplifiers and electronic switches, for example LED Drive Amplifiers, Relay Drive Amplifiers, Audio Amplifiers.
Data: Voltage between Collector and Emitter 3 - 20Volts max.
- Power handling capacity 100 mWatts max.
- bCurrent handling capacity 300 mAmps max.
- Amplification (gain) greater than 125.
