Circuit:SPST with LED Current Rating:50mA Voltage Rating:28VDC Dielectric withstanding voltage :250VAC for 1 minute Contact Resistance:100mΩ Max .(intial DC5V 1mA) Insulation Resistance:500MΩ Min. Operating Force .:500±150gf Total Travel:1.2±0.3mm Opearating Force:500,000 Cycles Min Soldear Specifications:260°C for 3 Seconds Function:Momentary Openrating Temperature:-40°C~ +95°C