SMD Polarity Identification of LED, Capacitor, Diode, Inductor, IC (Part6.)

SMD Inductor Polarity Identification

There are 2 types of SMD inductors.

Chip inductors are non-polarized components.

Multi-pin inductors are polarized components. The first pin of the multi-pin inductor should be in the same direction as the first pin of the PCB pad. Multi-pin inductor polarity is marked by:

• 1. The first pin of the multi-pin inductor is marked by a round point.
• 2. The first pin of the multi-pin inductor is marked by the number 1.
• 3. The first pin of the PCB pad is marked by a round point.
• 4. The first pin of the PCB pad is marked by a round circuit.
• 5. The first pin of the PCB pad is marked by a * symbol.