DF18B-100DS-0.4V DF18B-100DS-0.4V(81) DF18B-120DS-0.4V DF18B-120DS-0.4V(81) DF18B-20DS DF18B-20DS-0.4(81) DF18B-20DS-0.4V DF18B-20DS-0.4V(51) DF18B-20DS-0.4V(81) DF18B-30DS-0.4V