Features / technical specifications:
- Package Type: TO-92
- Transistor Type: NPN Darlington
- Max Collector Current(IC): 1.2A
- Max Collector-Emitter Voltage (VCE): 30V
- Max Collector-Base Voltage (VCB): 40V
- Max Emitter-Base Voltage (VEBO): 10V
- Max Collector Dissipation (Pc): 625 milliwatt
- Max Transition Frequency (ft): 200 MHz
- Minimum & Maximum DC Current Gain (hFE): 30000
- Max Storage & Operating temperature Should Be: -55 to +150 Centigrade
BC517 Transistor Explained / Description:
BC517 is an NPN Darlington transistor manufactured in TO-92 package, a Darlington transistor is a pair of combined two BJT transistors connected with each other in a wiring called Darlington pair in a single package for obtaining high gain and to switch ON higher current on very small base current.
The transistor BC517 has also a very high DC current gain as compared to other normal NPN transistors is 30,000 due to which this device can be used as a switch where there is a very small or low amount of current base current available and where other normal BJT NPN transistors are not saturating on that small current. It can drive a 1.2A load at its output which is a good feature for driving a variety of loads with very small currents. It will also perform well in audio amplification stages in audio circuits.
Where We Can Use it & How to Use:
It is a very high-gain transistor, therefore it can be used to amplify low-gain current signals to high gain, and it can be used in stages where there is a requirement for amplifying low-gain signals. For example, in the audio preamplifier stages, it provides good gain to very weak audio signals. Besides audio circuits, it can be used to amplify a variety of low-gain signals. When used as a switch it will become saturated on a very small amount of current. It can be used to drive LEDs, Relays, motors, other transistors, and parts of circuits in an electronic circuit under 1200mA. This is an ideal transistor to use in educational, hobby, and commercial electronic circuits.
Applications:
- Sensor Circuits
- Audio Preamplifiers
- Audio Amplifier Stages
- Switching Loads under 1.2A
- Battery Chargers
- Motor Driver
