| Abbreviation | Definition |
|---|---|
| SIP | Single In-line Package |
| SiPM | Silicon Photomultiplier |
| SIPO | Serial In, Parallel Out |
| SIPP | Single In-line Pin Package |
| SIPP | Stable Image Platform Program |
| SISD | Single-Instruction stream, Single-Data-stream |
| SITE | Systems Integration Testing Environment |
| SIU | Sensor Interface Unit |
| SK | Sampling Keyboard |
| SKT | Sequential Kinking Terminal |
| SKT | Socket |
| SKU | Stock Known Unit |
| SL | Screen Length |
| SL | Screen Lock |
| SL | Shift Lock |
| SLC | Signal Loss Compensator |
| SLC | Small Logic Controller |
| SLI | Scalable Link Interface |
| SLI | Scan Leave Interlacing |
| SLI | Scan Line Interlace |