PK-27A25PSQ

Overview

The PK-27A25PSQ is a piezoelectric buzzer from Mallory Sonalert Products Inc., designed for board mounting. It operates on a DC input voltage range of 3 to 24VDC with a rated voltage of 12V. The device generates a continuous tone at a frequency of 2.5kHz, producing a sound pressure level of 95dB measured at a distance of 30cm. Power consumption is specified at 10mA. The unit features through-hole PC pin termination and measures 30mm by 16mm.

Feature Summary

• Externally driven piezoelectric transducer with integrated feedback mechanism
• Capable of generating a constant continuous audio tone
• Designed for direct through-hole printed circuit board mounting

Applications

• Industrial control panel status indication
• Consumer appliance operational alerts
• Transportation system warning signals

Procurement Notes

Verify the specific suffix codes against the manufacturer's official part numbering guide to ensure correct electrical and mechanical specifications. Confirm that the externally driven configuration matches the target circuit design requirements before procurement.

Selection Notes

Select this component when a compact, board-mount solution is required for audible signaling. Ensure the driving circuit can handle the 10mA current draw and that the 2.5kHz frequency is appropriate for the intended alert environment.

Part Context

This component belongs to the PK series of piezoelectric indicators manufactured by Mallory Sonalert Products Inc. The series is characterized by small form factors suitable for dense PCB layouts and reliable acoustic performance in various industrial and consumer applications.

Replacement Considerations

Cross-reference with other PK series variants such as PK-27N25WQ or PK-27N35WQ for different mounting styles or frequencies. Verify compatibility with existing PCB footprints and drive circuits when substituting.