655-T9AP1D52-12 655-T9AP1D52-24 655-T9AP5D52-110 655-T9AP5D52-12 655-T9AP5D52-24 655-T9AS1D22-12 655-T9AS1D22-24 655-T9AS1D22-5 655-T9AS5D22-12 655-T9AS5D22-24 In a continuous effort to improve product performance, Tyco has changed the molded base component of the code 2 and 5 T9A relay from the current "v-grid" pattern to a "trench" style. The sealing epoxy has also been enhanced. These modifications provide a more robust sealing system which has been proven out through rigorous internal testing. The footprint and all internal components remain the same, meaning that there is no difference in the electrical and life performance of the relay. 5-1003-19