PK-27A35EPDBQ

Overview

The PK-27A35EPDBQ is an internally driven piezoelectric buzzer with integrated blue LED visual indication. It operates on a DC input voltage range of 3 to 15VDC, drawing 18mA at the rated 12V. The device emits a continuous tone at a frequency of 3.5kHz with a sound pressure level of 95dB measured at 30cm. Designed for panel mounting via screw terminals, its physical dimensions are 36.5mm in diameter and 24mm in height.

Feature Summary

• Combines audible alarm with blue LED visual indicator
• Internally driven piezoelectric technology
• Screw terminal connection for secure installation

Applications

• Industrial control panels requiring dual audio-visual alerts
• Machine status indication systems
• Safety warning devices in automated equipment

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current part numbering guide to ensure correct voltage and feature configuration. Confirm that the required operating voltage aligns with the 3-15VDC specification. Check for any recent product change notifications regarding component updates or material substitutions before finalizing procurement orders.

Selection Notes

Select this model when both audible and visual signaling are required in a single compact unit. The internal driver simplifies circuit design by eliminating external oscillators. Ensure the mounting hole size accommodates the 36.5mm diameter and verify that the enclosure allows for adequate sound projection from the front face.

Part Context

This component belongs to the PK series of industrial piezo buzzers from Mallory Sonalert. The series offers various configurations for different mounting styles and electrical requirements. This specific variant integrates visual feedback, distinguishing it from standard acoustic-only models within the same family.

Replacement Considerations

Direct substitutes include other Mallory Sonalert PK-series units with similar dimensions and electrical ratings. Verify compatibility with existing panel cutouts and terminal spacing when considering alternative part numbers.