Thru Hole Piezo Electric Transducer / Buzzer 1.5VAC 22mm PKM22EPP-40

This 22mm wide Piezo Electric Transducer is a buzzer. Most piezo electric transducers, including this one, require an AC or alternating signal to power them. Just hook this buzzer up to a 1.5V - 30V AC power source and your projects will have sound!

• Operating Voltage: 1.5-30V AC (Alternating current)
• Rated Voltage: 1.5Vac
• Max Voltage: 30Vac
• Resonant Frequency: 4kHz
• Sound Pressure Level: 75dB
• Diameter: 0.79" (20mm)
• Height: 0.28" (7mm)
• Connector Type: Throgh Hole Pins
• Tone Type: External Drive
• Color: Black
• Operating Temperature: -20°C ~ 70°C

Want to use this Buzzer with a DC power source? Below you'll find a simple oscillator circuit to get this buzzer running with a 555 timer, 2 resistors and a capacitor. Otherwise, just pick up one of our Solid State Buzzers with a built in oscillator circuit!