1- Electronic components (resistors, capacitors, diodes, transistors)
2- Printed circuit boards (PCBs)
3- Integrated circuits (ICs)
4- Connectors and terminals
5- Wiring and cables
6- Switches (toggle switches, push buttons, rotary switches)
7- Relays
8- Fuses and circuit breakers
9- Sensors (temperature sensors, proximity sensors, motion sensors)
10- Microcontrollers
11- Power supplies (AC/DC converters, voltage regulators)
12- Transformers
13- Electronic enclosures and cases
14- Electric motors and motor controllers
15- Electrical panels and control systems