PK-27N25PSQ

Overview

The PK-27N25PSQ is a piezoelectric buzzer from the Mallory Sonalert PK series, designed for industrial audio indication. It operates on a DC input with a rated voltage of 12V and a functional range of 3 to 28V. The device generates a continuous tone at a resonant frequency of 2500Hz, producing a sound pressure level between 74 and 94dB. Electrical consumption is limited to a maximum of 8mA. Physically, it measures 30mm in diameter and 16mm in height, utilizing wire lead termination for board mounting.

Feature Summary

• Integrates internal drive circuitry for direct connection to power sources without external oscillators
• Provides consistent continuous tone output for clear status indication
• Features compact flange-mount design suitable for panel or board integration

Applications

• Industrial control panels requiring visual and audible alerts
• Medical equipment status indicators
• Transportation vehicle instrumentation systems

Procurement Notes

Verify the specific suffix PSQ against official Mallory documentation to confirm terminal type and acoustic specifications. Ensure the operating voltage aligns with the 3-28VDC range. Confirm RoHS compliance status through current manufacturer certificates before finalizing procurement orders.

Selection Notes

Select this component when a low-current, high-intensity continuous alert is required for panel mounting. Compare SPL ratings against ambient noise levels to ensure audibility. Verify that the 30mm diameter fits within available enclosure space constraints.

Part Context

This part belongs to the PK series of piezoelectric buzzers manufactured by Mallory Sonalert Products Inc. The series is characterized by robust construction and internal driver circuits, widely used in industrial and medical sectors for reliable audio signaling applications.

Replacement Considerations

Consult official Mallory cross-reference guides for verified substitutes. Generic equivalents may lack identical acoustic profiles or electrical characteristics.