Package Includes : 1 piece Piezoelectric Sensor 27 mm
 
Piezo transducer are disc piezo elements with two electrodes on each part of the disc, the electrodes generate voltage difference when the disc is subjected to any vibration, knock or any kind of external pressure.The disc is 27mm in size with brass and ceramic disc placed in composite form and has two soldered wire terminals on each part of the disc, the transducer are best used in applications like touch sensor, vibration detection or simply use as a sound buzzer.
 
Features & Specifications:
Resonance Impedance:250Ω Max
Resonance Frequency:4.6+.5 KHz
Capacitance:16,000pF+30% @ 100Hz
Operating Voltage:30 Vp-p max
Operating Temp.:-20oC to 70oC
Brass Disc Size:27mm x .25mm
Ceramic Disc Size:20mm x .26mm
Leads:None
 
Application:
Contact Microphones 
Touch-Sensors 
Electric Drum Triggers 
Speakers, Buzzers
 
Bullet points:
1 piece Piezoelectric Sensor 27 mm
used in applications like touch sensor, vibration detection or simply use as a sound buzzer.
Brass Disc Size:27mm x .25mm
Resonance Frequency:4.6+.5 KHz