Digi-Reel® is used to protect the photodiodes from damage. To ensure safety, photodiodes are put into 2-SMD, Gull Wing packages. When reverse-biased, the photodiodes should not continually exceed 60V. There are 2 pins on the photodiodes. During the operation of a circuit, photodiodes can release 215mW heat. A reverse anode voltage of 60V should be applied to the photodiodes. Photodiodes generally release 215mW heat when connected in a circuit. With the reverse voltage of 60V, the photodiodes in the DC circuit can work properly. When current flows across a photodiode, it needs voltage 1.3V. Photodiodes should work when the breakdown voltage is 60V. In the absence of light input, a photodiode produces a 2nA current.