AI-2331-TWT-R

Overview

The AI-2331-TWT-R is a piezoelectric sounder from the AI series, designed for through-hole mounting on printed circuit boards. It features an internal driver circuit and accepts DC input within a voltage range of 3 to 20 volts, with a rated voltage of 12 VDC. The device produces a continuous single-tone signal at a frequency of 3.1 kHz, achieving a sound pressure level of 85 dB at 12V measured at 10cm. Power consumption is specified at 15 mA. Physically, it has a cylindrical diameter of 23.40 mm (0.921 inches) and a maximum installation height of 10.20 mm (0.402 inches). The component operates reliably within a temperature range of -20°C to 60°C.

Feature Summary

• Integrates an internal drive circuit for simplified interface requirements
• Utilizes piezoelectric technology for reliable acoustic output
• Supports wide operating voltage range from 3V to 20V

Applications

• Industrial equipment status indication
• Consumer appliance alert systems
• Automotive interior warning signals

Procurement Notes

Verify that the specific part number matches the required acoustic parameters, particularly the 3.1 kHz frequency and 85 dB SPL rating. Confirm that the through-hole PC pin termination is compatible with the target PCB layout and assembly process. Ensure the operating temperature range of -20°C to 60°C meets the environmental conditions of the intended application. Check for RoHS3 compliance if required by project specifications.

Selection Notes

Select this component when a compact, internally driven piezoelectric sounder is needed for 12V systems. The 23.40 mm diameter offers a balance between acoustic output and board space constraints. Consider the 15 mA current draw for power budget calculations. Compare against electromagnetic alternatives if lower current or different frequency characteristics are required. Verify mechanical clearance for the 10.20 mm height in the final enclosure design.

Part Context

This model belongs to PUI Audio's AI series of audio indicators and alerts. The series includes various piezoelectric and electromagnetic devices tailored for different voltage and acoustic requirements. The AI-2331-TWT-R specifically addresses applications requiring a standard 12V operation with moderate sound pressure levels. It is categorized under audio devices and transducers, distinct from microphones or speakers in the manufacturer's portfolio.

Replacement Considerations

AI-2331-TWT-2-R: Similar piezoelectric sounder but operates at 3.2 kHz frequency.