OLS249 Description
The OLS249 consists of a light emitting diode optically coupled to a NPN silicon phototransistor mounted and coupled in a custom hermetic surface mount LCC package. The very low input current makes the OLS249 well suited for direct CMOS to LSTTL / TTL interfaces. Electrical parameters are similar to the JEDEC registered 4N49 optocoupler but with much better CTR degradation characteristics due to radiation exposure...
OLS249 Key Features
- Hermetic SMT package
- 1500 Vdc electrical isolation
- High current transfer ratio
- Small package size
- High reliability and rugged construction
- Hi-rel screening available
- Radiation tolerant