| Abbreviation | Definition |
|---|---|
| SOC | Substrate On Chip |
| SOC | System On a Chip |
| SOCCER | Senior Officer Communication and Coordination Electronic Resource |
| SOD | Small Outline Diode |
| SoDA | SMPTE on Digital Audio |
| SODD | Second Order Detuning and Distortion |
| SODIMM | Small Outline Dual Inline Memory Module |
| SOfA | State Of the Art |
| SOG | Spin-On Glass |
| SOI | Silicon On Insulator |
| SOIC | Small Outline Integrated Circuit |
| SOJ | Select-O-Ject |
| SOJ | Small Outline with J Lead Package |
| SOLAR | SOLar Activated Rectifier |
| SOM | System On Module |
| SONET | Synchronous Optical NETwork |
| SOP | Small Outline Package |
| SOP | Source Of Power |
| SOP | Systems Operation Plan |
| SORS | Sensors on Red Square |