PMBFJ620,115 Discrete Semiconductor Products

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
FET Type:	2 N-Channel (Dual)
Voltage - Breakdown (V(BR)GSS):	25V
Drain to Source Voltage (Vdss):	25V
Current - Drain (Idss) @ Vds (Vgs=0):	24mA @ 10V
Voltage - Cutoff (VGS off) @ Id:	2V @ 1µA
Input Capacitance (Ciss) (Max) @ Vds:	5pF @ 10V
Resistance - RDS(On):	50 Ohms
Power - Max:	190mW
Operating Temperature:	150°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	6-TSSOP, SC-88, SOT-363
Supplier Device Package:	6-TSSOP
Base Part Number:	MBFJ620

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Introduction

Junction Field-Effect Transistors (JFETs) are three-terminal semiconductor devices that utilize electric field to control the current in a field-effect transistor (FET). JFETs are constructed from two types of doped semiconductor material that form a channel of one type of semiconductor material between two regions of opposite types of semiconductor material called the drain and the source. PMBFJ620,115 is a type of N-channel JFET, with a 15V Drain-Source Voltage, 0.3A Drain-Current and 1568mW Drain-Power. It is used mainly in bridge circuit applications, amplifier circuits, and voltage regulator circuits to control the current source, or to serve as a switch. This article will discuss the application field and working principle of PMBFJ620,115.

Application Field

PMBFJ620,115 is commonly used in applications such as bridge circuits, amplifier circuits, and voltage regulator circuits. In a bridge circuit, the JFET is used as a switch to control the current source. This means that when the voltage applied to the gate is controlled, the current flowing through the circuit can be increased or decreased. In an amplifier circuit, the JFET is biased so that it amplifies an input signal. This is achieved by controlling the current source that switches on or off. This increases or decreases the amount of current that is applied to the load in the amplifier circuit. Finally, in a voltage regulator circuit, the JFET is used to control the current source, which in turn controls (regulates) the output voltage of the circuit.

Working Principle

JFETs, like other field-effect transistors, operate by controlling the current flowing through a region of one type of semiconductor material (channel) between two regions of opposite types of semiconductor material (drain and source). The electric field generated by the potential difference between the drain and the source causes current to flow through the channel. The voltage applied to the gate terminal determines the magnitude of the electric field, which in turn affects the current flowing through the channel. By changing the magnitude of the gate voltage, it is possible to control the current flowing through the channel, and thus the output voltage of the circuit.

Conclusion

In conclusion, PMBFJ620,115 is a type of N-channel JFET which is mainly used in bridge circuits, amplifier circuits, and voltage regulator circuits. It works by generating an electric field using the difference in voltage between the drain and the source, and varying the field using the gate voltage. This process is used to control the current source and ultimately modify the output voltage of the circuit.

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