| Abbreviation | Definition |
|---|---|
| SDGE | San Diego Gas and Electric |
| SDH | Synchronous Digital Hierarchy |
| SDHT | Selectively Doped Heterojunction Transistor |
| SDL | Schematic Driven Layout |
| SDLC | Static Design Layered Complexity |
| SDLC | Synchronous Data Link Control |
| SDLTS | Scanning Deep-Level Transient Spectroscopy |
| SDM | Specific Device Model for SAB |
| SDR | Software Defined Radio |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SDS | Smart Distributed System |
| SDV | Switched Digital Video |
| SDW | Semiconductor Datasheets on the Web |
| SE | Simplified Electronics |
| SE | Single-Ended |
| SE | Speech Enhancement |
| SE | Stand for Electric |
| SEA | Samsung Electronics America |
| SEA | Syrian Electronic Army |
| SEAJ | Semiconductor Equipment Association of Japan |