PRODUCT CENTER Home Product Center Intelligent Sensing 1654nm PD 500um Photodiode Chip The 1654PD 500um is an ortho-illuminated photodiode chip with an operating center wave of 1654nm, a conductive substrate, four electrodes, and a photosensitive surface size of 500um. Product Features High Responsiveness Low Dark Current Expanding The Operating Wavelength Application Areas Instrumentation Optical power meter Lidar Product Performance Indicators