These photodiodes are packaged in the Bulk to protect them from damage. The photodiodes are put into Chip with 34 Gauge BUSS Wire packages for safety protection. In reverse-bias mode on a continual basis, the maximum amount of voltage the photodiodes can withstand is 75V. The voltage for the photodiodes should not exceed 75V in reverse-bias mode on a continual basis. Even in the absence of light input, a photodiode occurs 20nA current.