Size 12: Male and female terminals,20 pairs,crimp wire range 14-12 AWG; pin contact 204,socket contact 203,max current rating 25A Size 16: Male and Female terminals,35 pairs,Wire Range 20-14 AWG；Pin contact 215, socket contact 209,max current rating 13A Size 20:Male and Female terminals ,35 pairs,Wire Range 22-20 AWG;Pin contact 202,Socket contact 201,max current rating 7.5A Feature of product:Material tin bronze,better conductivity and stability than brass，nickel plating also makes terminals resistant to corrosion and wear Adapter connector:Suitable for Deutsch series connectors,DTP,DT,DTM Series,HD30 Series, HDP20 Series, DRC Series,DRB Series，HD10 Series ,DTHD Series, JIFFY SPLICE Series etc