User:Rob Kam/sandbox1/sandbox7
< User:Rob Kam | sandbox1
Common electronic symbols
These symbols are standardized, and various organizations, such as the International Electrotechnical Commission (IEC) and the Institute of Electrical and Electronics Engineers (IEEE), provide guidelines for their use. It's essential to understand these symbols when reading or creating circuit diagrams to design and troubleshoot electronic circuits. The following is a selection of some of the most common symbols.
| Component | Unit | Ref. des. | Symbol | Photo |
|---|---|---|---|---|
| Resistor, IEEE and IEC style | Ohm | 
|
| |
| Potentiometer, IEEE and IEC style | Ohm | 
|
| |
| Trimmer resistor, IEC style | Ohm |  | ||
| Capacitor | Farad |  | ||
| Polarised capacitor | Farad |  | ||
| Variable capacitor | Farad | .svg) | ||
| Trimmer capacitor | Farad | .svg) | ||
| Inductor | Henry |  | ||
| Magnetic core inductor | Henry |  | ||
| Transformer with two secondary windings | — |  | ||
| Quartz crystal | Herz |  | ||
| Diode | — |  |
 | |
| Schottky diode | — |  |
 | |
| Zener diode | — |  |
 | |
| Varactor diode | — |  |
 | |
| LED | — |  |
 | |
| NPN bipolar junction transistor | — | .svg) |
 | |
| PNP bipolar junction transistor | — | .svg) |
 | |
| N-channel JFET | — |  | ||
| P-channel JFET | — |  | ||
| Operational Amplifier | — |  | ||
| Microphone, IEEE and IEC style | Ohm |  |
 | |
| Loudspeaker | Ohm |  | ||
| Single cell and battery | Volt |  |
 | |
| Incandescent light bulb | Watt |  | ||
| Voltmeter and ammeter |  |
 | ||
| Push-to-make switch, push-to break switch, IEEE style | — |  |
 | |
| SPST and SPDT switch | — |  |
 | |
| DPST and DPDT switch | — |  |
 | |
| DPST and DPDT relay | — |  |
 | |
| TS and TRS jack socket | — |  |
 | |
| DC barrel connector, positive tip | — |  | ||
| Voltage source and current source | — |  |
 | |
| Fuse, IEEE and IEC style | Amp |  |
 | |
| Antenna | — |  | ||
| Earth | — |  | ||
| Chassis ground | — |  | ||
| Wires crossing and junction | — |  |
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