Radiation-Tolerant Phototransistor Non-Hermetic Surface-Mount Optocouplers
Source: Skyworks Solutions, Inc.
The OLC049, OLC249, and OLC449 can be used for large satellite constellation applications that require optical isolation in radiation environments such as gamma, neutron, and proton radiation with a high CTR and low saturation VCE. Each optocoupler consists of an LED and N-P-N silicon phototransistor that is electrically isolated, but optically coupled inside a non-hermetic six-pin Leadless Chip Carrier (LCC) package.
Additional OLC049 Features Include:
- Miniature non-hermetic surface-mount package
- Radiation tolerant
- High CTR guaranteed over –55 °C to +125 °C ambient temperature range
- 1000 VDC electrical isolation
Additional OLC249 Features Include:
- Non-Hermetic SMT package
- 1000 VDC electrical isolation
- High CTR
- Small package size
- Radiation tolerant
Additional OLC449 Features Include:
- Radiation tolerant version of the 4N49U
- High current transfer ratio (CTR) is guaranteed:
- – Over –55 °C to +125 °C ambient temperature range
- – At LED current of 1mA
- 1000 VDC electrical isolation
- Same processing and construction as the OLC249, but with a higher CTR
To learn more about the products in this series, download the available datasheets.
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