What is Pinch off Voltage of FET ?
the pinch-off voltage is the gate-source voltage at which the channel is fully constricted, and current flow is cut off. In an n-channel JFET, the Vth is typically a negative voltage, while in a p-channel JFET, it's a positive voltage. Understanding and controlling the pinch-off voltage is essential for designing and operating FETs in electronic circuits, as it determines when the transistor begins to conduct and allows precise control of the device's operation.
How to Calculate Pinch off Voltage of FET?
Pinch off Voltage of FET calculator uses Pinch OFF Voltage = Pinch OFF Drain Source Voltage FET-Drain Source Voltage FET to calculate the Pinch OFF Voltage, Pinch off Voltage of FET is the voltage at which the channel of the FET is pinched off, preventing further current flow. It is also known as the threshold voltage. In a junction field-effect transistor (JFET), the pinch-off voltage is the voltage at which the depletion regions of the gate junctions meet and pinch off the channel. This happens because the gate voltage creates an electric field that attracts electrons away from the channel, forming depletion regions. When the depletion regions meet, they effectively close the channel, preventing any further current flow. Pinch OFF Voltage is denoted by Voff(fet) symbol.
How to calculate Pinch off Voltage of FET using this online calculator? To use this online calculator for Pinch off Voltage of FET, enter Pinch OFF Drain Source Voltage FET (Vds-off(fet)) & Drain Source Voltage FET (Vds(fet)) and hit the calculate button. Here is how the Pinch off Voltage of FET calculation can be explained with given input values -> 68.1454 = 68.16-4.8.