Download the HMM5123B datasheet PDF.
This datasheet also covers the HMM5123B_Hi variant, as both devices belong to the same zener diodes family and are provided as variant models within a single manufacturer datasheet.
Note: The manufacturer provides a single datasheet file (HMM5123B_Hi-SincerityMocroelectronics.pdf) that lists specifications for multiple related part numbers.
HMM5123B Datasheet
