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Electrical reference

Transistor Symbols

Transistor schematic symbols of electronic circuit - NPN, PNP, Darlington, JFET-N, JFET-P, NMOS, PMOS.

Transistor schematic symbols of electronic circuit - NPN, PNP, Darlington, JFET-N, JFET-P, NMOS, PMOS.

Table of transistor symbols

Symbol Name Description
NPN Bipolar Transistor Allows current flow when high potential at base (middle)
PNP Bipolar Transistor Allows current flow when low potential at base (middle)
Darlington Transistor Made from 2 bipolar transistors. Has total gain of the product of each gain.
JFET-N Transistor N-channel field effect transistor
JFET-P Transistor P-channel field effect transistor
NMOS Transistor N-channel MOSFET transistor
PMOS Transistor P-channel MOSFET transistor

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