BC546TAR

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Obsolete
Transistor Type:	NPN
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	65V
Vce Saturation (Max) @ Ib, Ic:	600mV @ 5mA, 100mA
Current - Collector Cutoff (Max):	15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	110 @ 2mA, 5V
Power - Max:	500mW
Frequency - Transition:	300MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92-3
Base Part Number:	BC546

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Transistors - Bipolar (BJT) - Single

The BC546TAR is a general-purpose, medium-power NPN bipolar transistor. This device is often found in many electronic applications, ranging from basic switching to logic circuits. Understanding its application field and working principle is important to using it correctly and effectively.

Application Fields

The BC546TAR is a low-cost and efficient device that is useful in various applications. From commonly used switches and amplifying circuits to powering small motors and driving LEDs, the BC546TAR can be used for a variety of tasks. The BC546TAR has a number of features that make it well suited for a variety of applications. It has a high DC current gain, a low noise level, an implied voltage noise factor, and a maximum power dissipation of 600 mW. Furthermore, it has a collector-to-base breakdown voltage of 45V, an operating temperature ranging from -55°C to 125°C, and a storage temperature of -65°C to 150°C. Because of its high maximum current gain of 800 at a relatively low collector current, it is usually the preferred choice for amplifying circuits.The BC546TAR can also be used in low-voltage applications. It can operate at extremely low voltages and can be used in logic switching applications. It can handle loads up to 1A and can be switched quickly and reliably. Moreover, since these devices are low cost and space efficient, they are best suited for applications where a large number of devices are required.

Working Principle

The BC546TAR is a bipolar junction transistor (BJT). It is a three-terminal device composed of two p-type and one n-type semiconductor regions. This device has three terminals named the base, collector and emitter. The BC546TAR works based on the principle of bipolar junction transistors. This device works by passing current through a base-emitter junction. When current is passed through the base-emitter junction, it causes holes (positive charge carriers) to be injected into the emitter region. These holes then diffuse to the collector region, causing a current to flow between the collector and emitter. The voltage applied to the base controls the current flowing between the collector and emitter. If a small voltage is applied to the base, then only a small current flows between the collector and emitter region. Conversely, if a large voltage is applied to the base, then a greater current will flow between these two regions. This process, referred to as amplification, allows the BC546TAR to amplify small signals and is the main principle behind the device.

Conclusion

In conclusion, the BC546TAR is a low-cost and efficient, general-purpose NPN bipolar transistor with a variety of applications. It has a number of features that make it ideal for many tasks ranging from basic switching to logic circuits. Understanding the working principle of this device, which is based on the principle of bipolar junction transistors, is important to using it correctly and effectively.

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