PN4392_D27Z Description

The PN4392_D27Z is a JFET N-Channel 30 V 625 mW Through Hole TO-92-3. One of the most basic varieties of field-effect transistors is the junction-gate field-effect transistor (JFET). JFETs are three-terminal semiconductor devices that can be used to create amplifiers, switch or resistors that can be controlled electronically, or both.

JFETs are purely voltage-controlled, unlike bipolar junction transistors, which also require a biasing current. Between the source and drain terminals, an electric charge travels through a semiconducting channel. The channel is pinched, causing the electric current to be hindered or turned off entirely, by supplying a reverse bias voltage to a gate terminal. When there is no voltage between the source and gate terminals of a JFET, it is typically conducting. The JFET will be more resistant to current flow, which means less current will flow in the channel between the source and drain terminals if a potential difference of the right polarity is introduced between its gate and source terminals.

PN4392_D27Z Features

• Fast switching

• For low frequency operation, source and drain can be interchanged

• Gate voltage that controls drain current

• Single majority carrier

• Small in size

PN4392_D27Z Applications

• As a switch

• As an amplifier

• As a chopper

• As a buffer

• As voltage controlled resistors in the operational amplifiers

• In cascade amplifier and in RF amplifiers