Diameter: 5.1mm. Light resistance (10Lx, (2854K): 5...10k Ohms. Function: photoresistor (LDR). Wavelength (dominant): 520...590nm. Pitch: 3.4mm. Operating Voltage: 100V. Pd (Power Dissipation, Max): 90mW. RoHS: yes. Resistance (darkness, minimum): 0.2m Ohms. Assembly/installation: PCB through-hole mounting. Series: PGM5 CDS Photoresistors. Operating temperature: -30...+70°C. Spec info: Ton 50msec / Toff 35msec