PK-27N26WQ

Overview

The PK-27N26WQ is a piezoelectric buzzer from the Mallory Sonalert PK series, designed for industrial audio indication. It features a constant tone output with an operating frequency of 3.5 kHz and a sound pressure level of 90 dBA measured at 30 cm. The device operates on a DC input voltage range of 3 to 28 VDC, drawing a current of 15 mA. It utilizes wire lead termination for connection and employs flange mount installation within a housing measuring 30 mm in diameter and 16 mm in height.

Feature Summary

• Piezoelectric transducer technology providing reliable acoustic signaling
• Constant tone operation suitable for steady-state alerts
• Flange mount design for secure panel integration
• Wire lead termination for direct circuit connectivity

Applications

• Industrial machinery status indicators
• Control panel alarm systems
• Equipment fault detection units
• Process monitoring audio warnings

Procurement Notes

Verify the specific suffix configuration against the manufacturer's official part numbering guide to ensure correct voltage, frequency, and termination specifications. Confirm that the wire lead type and flange dimensions match the mechanical requirements of the target enclosure. Cross-reference the RoHS compliance status with current regulatory standards before finalizing procurement orders.

Selection Notes

Select this component when a constant tone alert is required within a 3 to 28 VDC system. Ensure the mounting hole diameter accommodates the 30 mm flange and that the available depth exceeds 16 mm. Verify that the 15 mA current draw aligns with the power supply capacity of the control circuitry driving the buzzer.

Part Context

This unit belongs to the PK series of piezoelectric indicators manufactured by Mallory Sonalert Products Inc. The series is characterized by robust construction using ABS plastic resin housings, designed for durability in demanding industrial environments. These components serve as standard audio warning devices for various electronic and mechanical systems requiring clear audible feedback.

Replacement Considerations

Consult the Mallory Sonalert PK series cross-reference documentation for verified substitute part numbers. Ensure any replacement maintains identical voltage ranges, frequency outputs, and physical mounting dimensions to guarantee compatibility with existing panel cutouts and electrical interfaces.