Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Transistor Type:	PNP
Current - Collector (Ic) (Max):	800mA
Voltage - Collector Emitter Breakdown (Max):	45V
Vce Saturation (Max) @ Ib, Ic:	700mV @ 50mA, 500mA
Current - Collector Cutoff (Max):	200nA
DC Current Gain (hFE) (Min) @ Ic, Vce:	250 @ 100mA, 1V
Power - Max:	625mW
Frequency - Transition:	260MHz
Operating Temperature:	-55°C ~ 150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92
Base Part Number:	BC327

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Introduction

The BC327-40-AP is a single bipolar junction transistor (BJT) from NXP Semiconductors. This transistor type is used for many applications, including high-power switching, low-noise amplification, and even temperature control. As such, the BC327-40-AP is a versatile device that can be used for a variety of tasks.

Application Field

The BC327-40-AP is mainly used in high-power switching applications. It has a low collector-to-emitter saturation voltage, which makes it well-suited for applications where a high-current is required, such as motor control and power switching. Additionally, due to its low noise characteristics, the BC327-40-AP is often used in amplifiers and other audio-related applications.The BC327-40-AP is also widely used in temperature control applications. Its high current capacity and fast switching times make it a good choice for controlling the temperature of an environment. As such, it is often used in household air conditioning systems and other temperature sensors.

Working Principle

The BC327-40-AP is a type of BJT, meaning it is a three-terminal device. Its three terminals, known as the base, the collector, and the emitter, allow for the flow of current when a voltage is applied. The current flow in a BJT will be determined by the voltage at the base and the current flowing through the collector and emitter.When the voltage at the base is increased, more current will flow from the collector to the emitter. This, in turn, will cause a decrease in the collector-to-emitter voltage, also known as the saturation voltage. As the saturation voltage decreases, more current will flow through the collector and emitter, increasing the current gain. This gain is known as the “beta” of the transistor.The BC327-40-AP is designed to have a low saturation voltage and high current gain, making it ideal for high-power switching applications. Additionally, its low noise characteristics allow it to be used in sensitive audio applications.

Conclusion

The BC327-40-AP is a single bipolar junction transistor (BJT) from NXP Semiconductors. It is mainly used for high-power switching applications due to its low collector-to-emitter saturation voltage and high current gain. Additionally, its low noise characteristics make it suitable for use in amplifiers and sound sensors. The BC327-40-AP is also widely used in temperature control applications due to its fast switching times.

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