max303The single-pole double throw (SPDT) MAX303 has two NO and two normally closed (NC) poles. All three parts offer low on resistance (less than 35Ω), guaranteed to match to withinmax303/max303ex . max303dx . 50 . max308/max308dx . . max328max328dx . max348max348dx . max368dx . max388dx . にしてをしていいます