AT-2720-ST-R

Overview

The AT-2720-ST-R is a through-hole piezoelectric transducer manufactured by PUI Audio, Inc. It operates within a voltage range of 1 to 25 volts and features a resonant frequency of 2000 Hz. The device produces a sound pressure level of 70 dB when driven at 3 volts measured at a distance of 10 cm. Its physical dimensions are 22 mm in diameter and 7 mm in height. This component is designed for audible signaling applications requiring reliable acoustic output.

Feature Summary

• Piezoelectric transduction mechanism for audible signaling
• Through-hole mounting configuration for PCB integration
• Wide operating voltage range supporting various drive circuits

Applications

• Industrial control panel indicators
• Consumer appliance status alerts
• Security system sirens and alarms

Procurement Notes

Verify RoHS compliance status as sources indicate non-compliance. Confirm package type matches design requirements. Check datasheet for specific drive conditions. Ensure mechanical fit within enclosure constraints. Validate electrical parameters against circuit design limits before procurement.

Selection Notes

Select this component for applications requiring a simple, robust audible indicator. Consider the 2000 Hz resonance for optimal efficiency. Evaluate the 70 dB SPL requirement against ambient noise levels. Ensure the through-hole form factor aligns with the printed circuit board layout and assembly process capabilities.

Part Context

PUI Audio, Inc. specializes in audio components including transducers and speakers. The AT-2720-ST-R belongs to their line of piezo buzzers. These devices are commonly used in industrial, medical, and consumer electronics for user feedback and alarm functions.

Replacement Considerations

No public confirmed substitute part numbers are available.