KSC945CYBU

Series:	--
Packaging:	Bulk
Part Status:	Obsolete
Transistor Type:	NPN
Current - Collector (Ic) (Max):	150mA
Voltage - Collector Emitter Breakdown (Max):	50V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 10mA, 100mA
Current - Collector Cutoff (Max):	100nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	120 @ 1mA, 6V
Power - Max:	250mW
Frequency - Transition:	300MHz
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:	KSC945

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The KSC945CYBU is a bipolar junction transistor, also known as a BJT, comprised of a single layer of semiconductor material usually silicon, used for amplifying and switching electronic signals. As a type of active device, the transistor has three main terminals, the base, the collector, and the emitter. The base acts as an input to control the current flowing from the collector to the emitter. Depending on the control of the base, current can be allowed to flow from the collector to the emitter or from the emitter to the collector, making the transistor a switch or amplifier.

Application Fields

The KSC945CYBU is a small signal NPN transistor that is used in a wide variety of applications, from switching applications to analog amplification. In switching applications, the KSC945CYBU can be used to switch on and off power supplies, allowing microcontrollers to control an output load. In analog amplification applications, KSC945CYBU can be used to amplify small signals, such as the output of an electret microphone in a low-cost audio microphone preamplifier. In both cases, the KSC945CYBU is used to control and switch the level of current flowing through the circuit.

Working Principle

The KSC945CYBU works by controlling the movement of electrons between the collector and the emitter by applying a voltage to the base terminal. When a voltage is applied to the base terminal, it increases the potential difference between the collector and the base, allowing electrons to flow from the collector to the emitter. When the voltage to the base terminal is high enough, the electrons are “pushed” to the emitter, creating a flow of current from the collector to the emitter. This process is called NPN action, and is the basis of the transistor’s action as an amplifier or switch.

When the voltage at the base is lowered, the current reverses and flows from the emitter to the collector, this process is known as PNP action. The amount of current flowing from the collector to the emitter is also proportional to the voltage applied to the base, so as the voltage is increased, the current will decrease. This allows the KSC945CYBU to be used as a variable amplifier for low-level signals such as those from microphones or other audio circuits.

In addition to being used as an amplifier or switch, the KSC945CYBU can also be used as an oscillator, as the current flowing through it creates an oscillating voltage which can be adjusted by varying the voltage to the base. This makes the KSC945CYBU a versatile transistor, and allows it to be used in a wide range of different applications.

Conclusion

The KSC945CYBU is a single-layer bipolar junction transistor designed for use in switching applications, analog amplification, and oscillator circuitry. When a voltage is applied to the base terminal, it increases the potential difference between the collector and the base, allowing electrons to flow from the collector to the emitter. When the voltage to the base is lowered, the current reverses and flows from the emitter to the collector. This action allows the KSC945CYBU to be used as a switch or an amplifier, or as an oscillator depending on the needs of the circuit the transistor is used in.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description