Packages / SOIC / TSSOP
4-lead gull-wing package for optocouplers.
| Family | SOIC / TSSOP |
| Terminals | 4 |
| Pitch | 2.54 mm |
| Body (L × W) | 4.4 × 4.3 mm |
| Height | 2.1 mm |
| IPC land pattern | SOP254P430X210-4 |
| Also known as | SOP4, SMD-4, optocoupler SMD, PC817 SMD |
The surface-mount 4-lead package used by single-channel optocouplers and small isolation parts (an SMT cousin of the DIP-4). Wide 2.54 mm pitch, easy to hand-solder.
The part's orientation in its carrier sets the pickup angle — the converter corrects that rotation for your machine.
Placement rotation
Parts in this package are typically taped at an orientation that needs a +270° correction from the community rotation table (SOP (except SOP-18)). The converter applies this to matching parts automatically — verify against your own footprint library.
Prepping a board with SOP-4 (optocoupler) parts?
Convert a job for any machine →Dimensions are nominal for the family — verify against your part's datasheet.
SMTPlace uses essential cookies to work. With your consent we'd also use privacy-friendly analytics to improve it — read our cookie policy.