Specifications Electrical: 1. Contact Resistance : 30 milliohms MAX. 2. Dielectric Withstanding Voltage : 500 V AC. AT Sea Level. 3. Insulation Resistance : 1000 MEGA ohms MIN. Mechanical: 1. Mating Force : 4.0KG MAX 最大4kg. 2. Unmating Force : 0.7KG MIN 最少0.7kg. Material: 1. Housing : High Temperature Thermoplastics , UL 94V-0 2. Contact : Copper Alloy. 3. Shell : Copper Alloy Finish: 1. Contact : Plated Gold in Mating Area : Tin On Solder Tails. 2. Shell : Tin Plating