Measurements of Proton Displacement Damage in Several Commercial Optocouplers

Proton Displacement Damage (DD) measurements on Isolink OLS049, Micropac 66296-101, 66224-103JANTX, and 66179-003 are reported. The 66179-003 has the worst degradation, 13% of the initial CTR remains when it is used with IF = 10 mA at 1 x 1012 1-MeV n/cm2 fluence in Silicon. The remaining CTR percentage for OLS049, 66296-101, and 66224-103JANTX are 21%, 32%, and 79% at 2 x 1012 1-MeV n/cm2 fluence in Silicon, respectively.