AI-165

Overview

The PUI Audio AI-165 is a piezoelectric buzzer designed for audible signaling applications. It operates at a resonant frequency of 2.7 kHz and produces a sound pressure level of 85 dB when driven by a 5 VDC supply. The component features a compact cylindrical form factor with a diameter of 16 mm and a height of 6.5 mm. Electrical characteristics include a maximum current draw of 30 mA under rated conditions. The device utilizes a built-in oscillator circuit to generate continuous tones from DC input, eliminating the need for external driving signals.

Feature Summary

• Integrated oscillator circuit enables direct connection to DC power sources without complex driver electronics
• Piezoelectric transducer technology provides reliable acoustic output in a sealed environmental housing
• Compact cylindrical design facilitates integration into space-constrained electronic assemblies

Applications

• Consumer appliance status indicators
• Portable medical device alarms
• Industrial control panel signaling

Procurement Notes

Verify the specific suffix code on the datasheet to confirm voltage rating and connector type compatibility. Ensure the operating temperature range aligns with the intended deployment environment. Cross-reference the pinout configuration with the target PCB layout to prevent installation errors during assembly.

Selection Notes

Choose this component when a self-contained audible alert is required within strict spatial limitations. The fixed frequency output suits applications where tone variation is unnecessary. Evaluate the 85 dB SPL requirement against ambient noise levels to ensure adequate audibility without excessive power consumption.

Part Context

This model belongs to PUI Audio's line of standard piezo buzzers. It shares mechanical dimensions with other series members but differs in electrical specifications. The AI-165 represents a cost-effective solution for basic signaling needs compared to programmable or multi-tone alternatives.

Replacement Considerations

Direct substitutes must match the 16 mm diameter and 2.7 kHz resonant frequency. Verify that alternative components support 5 VDC operation and provide comparable sound pressure levels. Check mounting hole patterns and terminal configurations for mechanical interchangeability.