PK-27A35WQ

Overview

The PK-27A35WQ is a piezoelectric audio indicator from the Mallory Sonalert PK series. It operates on a 12 VDC nominal voltage with a range of 3 to 24 VDC. The device produces a continuous tone at 3.5 kHz with a sound pressure level of 95 dBA. Electrical consumption is rated at 15 mA. Physical dimensions are 30 mm diameter by 16 mm height, featuring flange mount installation and wire lead termination.

Feature Summary

• Piezoelectric transducer technology for reliable acoustic output
• Internal driving circuitry enables direct DC connection
• Flange mount design facilitates secure panel integration

Applications

• Industrial equipment status indication
• Control panel alarm signaling
• Transportation system auditory alerts

Procurement Notes

Verify the specific suffix 'WQ' against official Mallory Sonalert documentation to confirm wire lead type and mounting configuration. Ensure the operating voltage range aligns with the system power supply. Confirm RoHS compliance requirements match project specifications before finalizing procurement orders.

Selection Notes

Select this component when a high-volume industrial buzzer is required. The 95 dBA output suits noisy environments. The 3-24 VDC range provides flexibility for various DC bus architectures. Consider the 30 mm form factor for panel cutout compatibility during mechanical design phases.

Part Context

This part belongs to the PK series of piezoelectric indicators manufactured by Mallory Sonalert Products Inc. The series is designed for general-purpose audible alerting in commercial and industrial applications. The manufacturer specializes in audio and visual warning devices with a long history in electronic components.

Replacement Considerations

PK-27N35WQ offers similar electrical characteristics but differs in sound pressure level (90 dBA vs 95 dBA). Verify acoustic requirements before substitution. No other direct cross-references are confirmed in public documentation.