As stated, there really is no accepted standard. This is partly because there are so many different kinds of FETs and partly because people mix them up with BJTs (such as the arrow direction.)

If you are using a specific part and the datasheet from the manufacturer shows a specific circuit symbol, then use that symbol! Many people will argue that it doesn't really matter, but that is nonsense. If a circuit designer picks a particular type of component, then that component should be represented appropriately in the schematics. Each type works differently. Saying that the circuit symbol doesn't matter is essentially saying that the type of part doesn't matter either.

I have had to create my own Eagle library with various parts to represent different kinds of FETs:

These includes JFETS, MESFETS, and MOSFETs in depletion mode, enhancement mode, and enhancement bode with a body diode. Notice the location of the gate relative to the body for P and N channels, the solid line for depletion mode, the dotted line for enhancement mode, and the additional body diode.

However, there are still many other types of MOSFETs that could be represented differently, such as those with dual gates or showing the body (substrate) connection when it is not shorted to the source. Drawing the circle around the FET is also common, but I have chose not to do it here because it clutters up the schematic and makes the component values difficult to read. Occasionally, you will see the arrow pointing in the opposite direction at the source - this typically means enhancement mode with no bulk.

As stated, there really is no accepted standard. This is partly because there are so many different kinds of FETs and partly because people mix them up with BJTs (such as the arrow direction.)

If you are using a specific part and the datasheet from the manufacturer shows a specific circuit symbol, then use that symbol! Many people will argue that it doesn't really matter, but that is nonsense. If a circuit designer picks a particular type of component, then that component should be represented appropriately in the schematics. Each type works differently. Saying that the circuit symbol doesn't matter is essentially saying that the type of part doesn't matter either.

I have had to create my own Eagle library with various parts to represent different kinds of FETs:

These includes JFETS, MESFETS, and MOSFETs in depletion mode, enhancement mode, and enhancement bode with a body diode. Notice the location of the gate relative to the body for P and N channels, the solid line for depletion mode, the dotted line for enhancement mode, and the additional body diode.

However, there are still many other types of MOSFETs that could be represented differently, such as those with dual gates or showing the body (substrate) connection when it is not shorted to the source. Drawing the circle around the FET is also common, but I have chose not to do it here because it clutters up the schematic and makes the component values difficult to read. Occasionally, you will see the arrow pointing in the opposite direction at the source - this typically means enhancement mode with no bulk.

As stated, there really is no accepted standard. This is partly because there are so many different kinds of FETs and partly because people mix them up with BJTs (such as the arrow direction.)

If you are using a specific part and the datasheet from the manufacturer shows a specific circuit symbol, then use that symbol! Many people will argue that it doesn't really matter, but that is nonsense. If a circuit designer picks a particular type of component, then that component should be represented appropriately in the schematics. Each type works differently. Saying that the circuit symbol doesn't matter is essentially saying that the type of part doesn't matter either.

I have had to create my own Eagle library with various parts to represent different kinds of FETs:

These includes JFETS, MESFETS, and MOSFETs in depletion mode, enhancement mode, and enhancement bode with a body diode. Notice the location of the gate relative to the body for P and N channels, the solid line for depletion mode, the dotted line for enhancement mode, and the additional body diode.

However, there are still many other types of MOSFETs that could be represented differently, such as those with dual gates or showing the body (substrate) connection when it is not shorted to the source. Drawing the circle around the FET is also common, but I have chose not to do it here because it clutters up the schematic and makes the component values difficult to read.

As stated, there really is no accepted standard. This is partly because there are so many different kinds of FETs and partly because people mix them up with BJTs (such as the arrow direction.)

If you are using a specific part and the datasheet from the manufacturer shows a specific circuit symbol, then use that symbol! Many people will argue that it doesn't really matter, but that is nonsense. If a circuit designer picks a particular type of component, then that component should be represented appropriately in the schematics. Each type works differently. Saying that the circuit symbol doesn't matter is essentially saying that the type of part doesn't matter either.

I have had to create my own Eagle library with various parts to represent different kinds of FETs:

These includes JFETS, MESFETS, and MOSFETs in depletion mode, enhancement mode, and enhancement bode with a body diode. Notice the location of the gate relative to the body for P and N channels, the solid line for depletion mode, the dotted line for enhancement mode, and the additional body diode.

However, there are still many other types of MOSFETs that could be represented differently, such as those with dual gates or showing the body (substrate) connection when it is not shorted to the source. Drawing the circle around the FET is also common, but I have chose not to do it here because it clutters up the schematic and makes the component values difficult to read. Occasionally, you will see the arrow pointing in the opposite direction at the source - this typically means enhancement mode with no bulk.