PS-550DG-AQ

Overview

The PS-550DG-AQ is an internally driven piezoelectric audio indicator manufactured by Mallory Sonalert Products Inc. It operates on a DC voltage range of 5 to 15 volts and draws a current of 200 mA. The device produces a continuous tone at a frequency of 2800 Hz with a sound pressure level of 105 dB measured at 100 cm. Designed for bracket mounting, it features wire lead terminations and measures 54 mm by 41 mm.

Feature Summary

• Internally driven piezoelectric technology eliminates the need for external oscillators
• Bracket mount design facilitates secure installation in industrial enclosures
• Continuous tone output provides consistent auditory signaling

Applications

• Industrial machinery status indication
• Equipment fault alarm systems
• Control panel audio alerts

Procurement Notes

Verify that the operating voltage remains within the specified 5 to 15 VDC range to ensure proper function. Confirm that the required sound pressure level of 105 dB meets the environmental noise requirements. Ensure the mounting bracket dimensions accommodate the 54 x 41 mm form factor. Check termination compatibility for wire leads.

Selection Notes

Select this component when an internally driven solution is required to simplify circuit design. Choose this model if a high-decibel continuous tone is necessary for audible warnings. Consider the bracket mount style if panel or chassis attachment is preferred over PCB mounting. Verify that the 2800 Hz frequency is suitable for the target application environment.

Part Context

This part belongs to the PS series of industrial-grade audio indicators from Mallory Sonalert. The series is characterized by robust construction and high sound pressure levels suitable for noisy environments. These devices are widely used in sectors requiring reliable visual and auditory alerts for operational monitoring.

Replacement Considerations

Consult official Mallory Sonalert documentation for direct cross-references. Verify electrical parameters such as voltage, current, and frequency match exactly before substitution.