... Rotational life : 100000 cycles 3. Brand: ALPS Rotary encoder Potentiometer and switch use for Sound Instruments, car amplifier, DVD ... We produce rotary encoder, potentiometer and switch.rotary encoder,potentiometer and switch for musical instruments, audios,medical equipment, ... 000 ± 200 timesSwitch rating: 12V DC, 1A (maximum)Switch operating force range: 150 to 250 gf.cmOperating temperature: ...