CPE-171
Overview
The CPE-171 is a compact, pin-mount piezo transducer designed for audible alert applications requiring a wide operating voltage range up to 30V. As an externally driven component, it allows engineers to control the output frequency and tone via an external PWM signal or oscillator circuit. This transducer features a small 8mm by 9mm footprint and a top-port design, making it suitable for high-density PCB layouts.
Why Choose This Part
The component offers a wide operating temperature range from -30 to +85 degrees Celsius, ensuring reliability in harsh environments. With a low current consumption of only 4mA and a peak-to-peak input type, it is highly efficient for battery-powered applications while maintaining a 75dB sound pressure level.
Applications
Key Specifications
Getting Started
To drive this transducer, provide a square wave (PWM) signal at the desired resonant frequency using a microcontroller GPIO or a 555 timer circuit. Ensure the input signal stays within the 30V maximum voltage range and use a flyback diode if driven by a transistor to protect against voltage spikes from the piezo element.
