HCS1201AX : 1.5V, <=20mA, >=75dB, 2300Hz
HCS1203AX : 3V, <=30mA, >=85dB, 2300Hz
HCS1205AX : 5V, <=30mA, >=85dB, 2300Hz
HCS1206AX : 6V, <=30mA, >=85dB, 2300Hz
HCS1212AX : 12V, <=30mA, >=85dB, 2300Hz