Table of Contents
Junction Field Effect Transistors (JFETs) are commonly used as a current source/sink.
- Drain
- Gate
- Source
Connecting the gate directly to the source provides the Idss. Which is the maximum current that a particular JFET will allow to flow through it.
A resistor between the gate and source will lower the amount of current based on the Idss and the amount of resistance used.
JFETs come in N channel and P channel. The J310 is relatively common N channel JFET.
N channel gate arrow points into the component schematic, whereas the P channel JFET schematic symbol points out of the schematic symbol.
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