| Abbreviation | Definition |
|---|---|
| SB | Substrate Backing |
| SBC | Single Board Computer |
| SBCRT | Split Beam Cathode-Ray Tube |
| SBD | Schottky Barrier Diode |
| SBD | SwitchBoard |
| SBE | Sea Bird Electronics |
| SBEC | San Bernard Electric Cooperative |
| SBIR | Speaker Boundary Interference Response |
| SBL | Scanned Beam Laminography |
| SBT | Slender Body Theory |
| SBU | Sequential Build-Up |
| SBY | StandBY |
| SC | Sapphire Carrier |
| SC | Semi-Conducting |
| SC | Slow Close |
| SC | Smoothing Choke |
| SC | Socket Contact |
| SC | Super Cell |
| SC | Supervisory Circuit |
| SC | Symbolic Circuit |