FJNS4206RTA

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Obsolete
Transistor Type:	PNP - Pre-Biased
Current - Collector (Ic) (Max):	100mA
Voltage - Collector Emitter Breakdown (Max):	50V
Resistor - Base (R1):	10 kOhms
Resistor - Emitter Base (R2):	47 kOhms
DC Current Gain (hFE) (Min) @ Ic, Vce:	68 @ 5mA, 5V
Vce Saturation (Max) @ Ib, Ic:	300mV @ 500µA, 10mA
Current - Collector Cutoff (Max):	100nA (ICBO)
Frequency - Transition:	200MHz
Power - Max:	300mW
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 Short Body
Supplier Device Package:	TO-92S

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FJNS4206RTA: Application Field and Working Principle

The FJNS4206RTA is a type of transistor - more specifically, a single pre-biased bipolar junction transistor (BJT). Its two major applications are switching and amplifying electronic signals. Its operation is based on the transistor effect, which allows it to control electrical current in a circuit varies depending on a small input signal.In electronics, a transistor is a three-terminal device used for amplifying or switching electrical signals. Transistors can be classified into two main categories - bipolar transistors and field-effect transistors (FETs). Bipolar transistors consist of two p-type and one n-type semiconductor material which are connected together in a circuit. They possess two BJT junctions, one pn-junction between the collector and emitter, and another pn-junction between the base and collector. When a small current enters the base terminal, a larger current can either be amplified or switched depending on the type of application.The FJNS4206RTA is a pre-biased BJT, meaning that the base-emitter junction is forward biased with a voltage before the application of an external signal. In most cases, this is done to achieve better performance and larger operating margins.When a signal is applied to the base of the FJNS4206RTA, the voltage of the base-emitter junction increases, allowing a larger current to flow through the collector-emitter circuit. This process is commonly referred to as current-gain, and is one of the major advantages of the FJNS4206RTA.In an amplifier application, the collector current is used to directly control the output signal. In switching applications, the FJNS4206RTA is used to drive external circuits (on/off switching) or as a voltage regulator (current control).When used in a voltage regulator configuration, the FJNS4206RTA acts as a dynamic resistance, allowing control of the output voltage by varying the base current. This performs the same function as a potentiometer, but with significantly higher accuracy and response time.The FJNS4206RTA is also extremely efficient; it consumes very little power and produces minimal noise. This makes it an ideal choice for a variety of applications, such as automotive electronics and portable devices.In conclusion, the FJNS4206RTA is a versatile and reliable transistor which can be used for a variety of applications. Its pre-biased design makes it a great choice for switching and voltage regulation, and its low power consumption makes it suitable for use in portable devices.

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