Proton Displacement Damage Measurements in Commercial Optocouplers

Proton Displacement Damage (DD) measurements on Isolink OLH249, Isocom IS49, Isocom CSM141A, Isocom CSM1800 and Avago HCPL-5700 are reported. The OLH249 has the worst degradation, 3% of the initial CTR remains when it is used with IF = 10 mA at 3 × 1012 1-MeV n/cm² fluence in Silicon. The remaining CTR percentage for IS49, CMS141A, CSM1800 and HCPL-5700 are 28%, 62%, 32%, and 81% at 3 × 10¹² 1-MeV n/cm² fluence in Silicon, respectively.