Kepo piezo elements for audio transducers kepo ft 35t 26a1 475 the keno piezo element 300 o 26 05khz is a 35mm diameter piezo element with a 30000nf30nf capacitance that can be used for a small audio transducer such as a buzzer kepo ft 35t 26a1 475 piezo element 300 ohm 26 05 khz 35mm