BC879,112

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	NPN - Darlington
Current - Collector (Ic) (Max):	1A
Voltage - Collector Emitter Breakdown (Max):	80V
Vce Saturation (Max) @ Ib, Ic:	1.8V @ 1mA, 1A
Current - Collector Cutoff (Max):	50nA
DC Current Gain (hFE) (Min) @ Ic, Vce:	2000 @ 500mA, 10V
Power - Max:	830mW
Frequency - Transition:	200MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3

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The BC879,112 is an NPN transistor, classified as a single bipolar junction transistor, that is manufactured and sold by many electronic component vendors. It is a general-purpose transistor that is used for a variety of applications, including switching and amplifier applications.The BC879,112 is a low-noise, TO-92-style transistor that has a maximum collector-emitter voltage rating (Vceo) of 40 volts and a maximum collector current rating (Ic) of 0.625 amperes. It is available in both the PNP and NPN configurations. Its maximum power dissipation rating is 0.625 watts, and its maximum collector-emitter saturation voltage (Vce(sat)) rating is 0.2 volts. The BC879,112 has a frequency rating of up to 500 MHz and a gain bandwidth product rating of up to 8 GHz.The BC879,112 is used in a wide variety of applications, including: amplifiers, radio receivers, oscillators, power supplies, and in digital circuits. In particular, this transistor is used in audio amplifier circuits, such as headphone amplifiers, where its low noise and good frequency response characteristics make it an ideal choice. Additionally, it is used in switching circuits, such as audio and power amplifiers, where it can be used to turn on and off transistors (or other devices) quickly and accurately.The working principle of the BC879,112 is based on the fact that when a small voltage is applied to its base (B) terminal, it allows current to flow from its collector (C) to its emitter (E). This current flow is controlled by the amount of base current (IB) that is supplied to the transistor. The amount of current that flows between the collector and the emitter is determined by the transistor’s gain, which is the ratio between Ic and IB (Ic/IB). When the base current is increased, the collector current (Ic) is also increased.The BC879,112 is a low-noise NPN transistor that is ideal for use in audio, radio, power amplifier and digital circuit applications. Its maximum collector-emitter voltage rating is 40 volts, its maximum collector current rating is 0.625 amperes, and its maximum power dissipation rating is 0.625 watts. It features a frequency rating of up to 500 MHz and a gain bandwidth product rating of up to 8 GHz. It operates on the principle that a small voltage applied to its base terminal allows current to flow between its collector and emitter, with the amount of current being determined by the transistor’s gain.

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