Material: Housing: PBT UL94V-0, Black Contacts: Phosphor Bronze Plating:Au or Sn over 50u" nickel Electrical Characteristics: Current Rating: 1.0 AMP Insulator Resistance: 1000M Ohm min. Withstand Voltage: 500V AC / Minute Contact Resistance: 20m Ohm max. Operating Temperature: -40ºC~+105ºC