ALLNET 4duino Piezo Speaker 16R

The ALLNET 4duino Piezo-Speaker 16R is a compact piezoelectric speaker designed for use with Arduino, Raspberry Pi, and other microcontrollers. It provides clear audio output for alarms, indicators, and simple sound generation projects.

Advantages

This piezo speaker offers reliable sound generation with a high sound pressure level of >85 dB at 10 cm. Its low power consumption and wide operating voltage range (3V-5V DC) make it ideal for battery-powered and embedded applications. The through-hole mounting with wire leads ensures easy integration into breadboards and PCBs.

Suitable for

• Alarm systems and buzzers
• Status indicators and beepers
• Simple audio output for microcontroller projects
• Educational electronics kits

Key specifications

• Speaker Type: Piezoelectric Speaker
• Impedance: 16 Ohm
• Operating Voltage: 3V - 5V DC
• Sound Pressure Level: >85 dB at 10cm
• Resonant Frequency: 2.5 kHz
• Frequency Range: 2 kHz - 4 kHz
• Diameter: 20 mm
• Height: 3 mm
• Mounting Type: Through-hole / Wire Leads
• Connector Type: 2-pin wire leads
• Material: Plastic, Piezo Ceramic
• Color: Black
• Operating Temperature: -20°C to +70°C

Recommendations

For optimal performance, drive the speaker with a square wave signal at its resonant frequency (2.5 kHz). Use a transistor or driver IC if higher volume is required. Compatible with Arduino digital output pins via a current-limiting resistor.