N channel vs P channel jfet

difference-tables

Parameter / Feature	N-Channel JFET	P-Channel JFET
Channel Material	n-type semiconductor	p-type semiconductor
Gate Material	p-type semiconductor layers	n-type semiconductor layers
Majority Carriers	Electrons	Holes
Carrier Mobility	High ($\approx 3\times$ higher than holes), yielding faster switching and lower internal resistance.	Lower, resulting in slower response times and higher channel resistance.
Gate-to-Source Voltage ($V_{GS}$)	Must be Negative or Zero ($V_{GS}\le 0$) to maintain reverse bias.	Must be Positive or Zero ($V_{GS}\ge 0$) to maintain reverse bias.
Pinch-off Voltage ($V_P$)	Negative value (e.g., $V_P=-4\text{ V}$)	Positive value (e.g., $V_P=+4\text{ V}$)
Drain-to-Source Voltage ($V_{DS}$)	Positive ($V_{DS}>0$)	Negative ($V_{DS}<0$)
Drain Current ($I_D$) Direction	Flows into the Drain terminal.	Flows out of the Drain terminal.
Schematic Symbol Arrow	Points inward toward the channel at the gate terminal.	Points outward away from the channel at the gate terminal.