AT-1740-TT-3-R

Overview

The AT-1740-TT-3-R is a piezoelectric transducer manufactured by PUI Audio, Inc. It operates at a resonant frequency of 4 kHz and delivers a sound pressure level of 78 dBA. The device features an ultra-low current draw of 1 mA and is designed for through-hole mounting with external termination. Its physical dimensions are approximately 17 mm in diameter with a depth of 6.7 to 7 mm.

Feature Summary

• Utilizes piezoelectric technology for single-tone audio indication
• Engineered for ultra-low power consumption suitable for battery-operated devices
• Designed for reliable through-hole PCB integration

Applications

• Battery-powered consumer electronics
• Medical equipment indicators
• Industrial control panels

Procurement Notes

Verify the specific datasheet version from PUI Audio or authorized distributors to confirm exact mechanical tolerances and electrical characteristics. Ensure compatibility with your PCB layout regarding hole spacing and component height constraints before finalizing procurement decisions.

Selection Notes

Select this component when low current drain is critical for system efficiency. The 4 kHz frequency provides clear audible feedback without excessive volume requirements. Confirm that the 78 dBA output meets regulatory noise limits for the intended enclosure environment.

Part Context

This part belongs to PUI Audio's standard piezoelectric transducer line, which includes various frequencies and sound pressure levels. It serves as a cost-effective solution for basic audio signaling needs where high fidelity is not required but reliability and low power are priorities.

Replacement Considerations

Check for direct substitutes with identical 4 kHz resonance and 17 mm form factor. Verify that alternative components maintain similar current draw specifications to ensure no impact on overall system power budget.