PRODUCT CENTER Home Product Center Ultra-low Dark Current PD Photodiode Chips The ultra-low dark current PD is an ortho-illuminated photodiode chip with an operating wavelength optimized at 1550 nm, a conductive substrate, four electrodes, and a photosensitive surface size of 500 um. Product Features High Responsiveness Ultra-low Dark Current Application Areas Optical Power Meter Instrumentation Laser Radar Product Performance Indicators * Graded screening, graded quotes