Term

Graphical Symbol

in full

simplified

Transistors

point contact transistor or junction transistor, type p-n-p

n-p-n transistor

Semiconductor diodes

diode with rectifying function

or

capacity diode

tunnel diode

avalanche rectifier diode

avalanche rectifier diode with avalanche effect in both directions

backward diode

Thyristors

general

backward blocking

backward conducting

n-type gate, controlled at anode side

p-type gate, controlled at cathode side

Semiconductor elements which can be influenced by light

photoresistance cell

photodiode

photocell with depletion layer

phototriode p-n-p

switching diode p-n-p-n

Semiconductor circuits

switching diode p-n-p-n

semiconductor valves in bridge connection

or