... 2.CE,ROHS,CCC,ISO9001:2008 3.OEM service available 4.pins:2/3/4/5/7/9/ ... rating: 30A Contact diameter/Number of contact: Φ3.0×3 Operating voltage(AC.V.rms): 500V Withstand ... chromium)2.Contact pin: Copper alloy(gold-plated)3.Jack: Phosphor bronze(gold-plated)4.Spring: Stainless ... Quality Guaranteed: CE , ROHS, CCC, UL, ISO9001:2008 Standard. Supply OEM service . We have professional quality control ...