What SMDs Components are Polarized?
Only polarized SMDs require polarity identification. Below are the polarized and non-polarized SMD components.
|Capacitors||Ceramic capacitors||Electrolytic capacitors, tantalum capacitors|
|Inductors||Chip inductors||Multi-pin inductors|
|Diodes||/||All diodes including LEDs|
|ICs||/||All ICs including BGAs|
As you can see, all resistors are non-polarized components, and all diodes, LEDs, ICs are polarized.