Radiation Tolerant, Phototransistor Hermetic Surface Mount Optocouplers

Radiation Tolerant, Phototransistor Hermetic Surface Mount Optocouplers

The OLS249 and OLS449 are radiation tolerant, phototransistor hermetic surface mount optocouplers designed specifically for hi-rel applications requiring optical isolation in radiation environments such as gamma, neutron, and proton radiation with high current transfer ratio and low saturation Vce.

These optocouplers are comprised of a light emitting diode and a NPN silicon phototransistor that is electrically isolated yet optically coupled inside a hermetic 4-pin leadless chip carrier package. They feature high degradation characteristics due to their radiation exposure, and are available with 100% hi-rel screened parts.

Additional features include:

  • Hermetic surface mount package
  • Radiation tolerant
  • 1000 Vdc electrical isolation
  • Small footprint
  • High current transfer ratio

For more features and specifications on the OLS249 and OLS449, download the respective datasheets.

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