With responsivity under test conditions at 254 nm, Model UVG12 features minimum A/W of 0.105, typical response of 0.115, and max response of 0.125. Photodiode is designed for detection from 193–400 nm and operates at 100% internal quantum efficiency in UV and visible regions. Extremely stable, 13 mm² device exhibits less than 2% drop in responsivity after exposure to megajoules/cm² of 254 nm light. Typical applications include laser power monitoring and photolithography.