
-7-
3. ELECTRONIC COMPONENTS
Variable Resistor
Variable Resistor
(Potentiometer)
(Potentiometer)
Resistor
Resistor
Ceramic capacitor
Ceramic capacitor
Electrolytic
capacitor (ELCO)
Transistor
-
+
B and E are just an
example, position can
change per type
NPN type
PNP type
Component Assembly PCB symbol Circuit symbol
When the component has a marking near the legs the polarity is extreme important !
Assembly with the wrong polarity can dammage the component or the complet circuit!