KSC1845PBU

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	NPN
Current - Collector (Ic) (Max):	50mA
Voltage - Collector Emitter Breakdown (Max):	120V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 1mA, 10mA
Current - Collector Cutoff (Max):	50nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	200 @ 1mA, 6V
Power - Max:	500mW
Frequency - Transition:	110MHz
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
Base Part Number:	KSC1845

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Introduction

KSC1845PBU is a type of bipolar junction transistor (BJT). It is a single transistor with an NPN configuration and it is composed of three pins namely Base, Collector and Emitter. Its absolute maximum ratings are 45 volts and 800mA of collector current. BJTs are the most commonly used transistors because they are easy to use and have low production cost. KSC1845PBU is commonly used in various applications including analog and digital circuits, audio amplifiers, power supplies, and switching. In this article, we will discuss its application field and working principle.

Application Fields of KSC1845PBU

KSC1845PBU is a small signal bipolar NPN transistor that is used for low-power applications. It is popularly used in analog and digital circuits where relatively low current and voltage levels are required. It is commonly used to amplify signals, interface between digital and linear circuits, and for switching applications. KSC1845PBU is commonly used in audio amplifiers due to its low noise and low distortion characterstics. It is capable of driving a low-power speaker or low-power headset reproducing music or sounded based signals. It is also used in power supplies to increase the input current of loads or control the output voltage level. Additionally, KSC1845PBU is also used in motor control systems to reduce the speed and voltage loss.

Working Principle of KSC1845PBU

KSC1845PBU is a bipolar junction transistor that works based on a simple principle. It is composed of two transistor elements, namely NPN and PNP. These two elements have the ability to control current flow in two directions depending on the state of the base. When the base is off, current only flows from the collector to the emitter, otherwise if the base is on, current will also flow from the emitter to the collector. The amount of current that flows is determined by the resistance values of the resistor connected to the base.This transistor works on the principle of current control, which means that it uses input voltage and current to control the amount of output current. The base current Ib controls the collector current Ic. When Ib is increased, Ic will also increase, which will then increase the current that flows through the device. Conversely, if Ib is decreased, then Ic will also decrease, and thus the current flow from the device will also decrease.

Conclusion

KSC1845PBU is an NPN bipolar transistor that is commonly used in various applications including analog circuits, audio amplifiers, power supplies and switching. It is a small-signal transistor that is capable of producing low current and voltage levels. It works on the principle of current control which means input voltage and current are used to control the amount of output current from the device. These attributes make KSC1845PBU a suitable transistor for various low-power applications.

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