PK-27A35EPDRQ

Overview

The PK-27A35EPDRQ is an internally driven piezoelectric buzzer with an integrated red LED indicator, manufactured by Mallory Sonalert Products Inc. It operates on a DC voltage range of 3 to 15 volts and draws 18 mA at the nominal 12 V rating. The device produces a continuous sound tone at a frequency of 3.5 kHz with a sound pressure level of 95 dB measured at 30 cm. It features panel mount installation via screw terminals and is designed for audible and visual indication in industrial applications.

Feature Summary

• Combines piezoelectric sound generation with a red LED visual indicator
• Internally driven circuitry eliminates need for external oscillators
• Supports wide DC input voltage range for flexible system integration

Applications

• Industrial control panels requiring combined audio-visual alerts
• Medical equipment status indication
• Transportation vehicle warning systems

Procurement Notes

Verify the specific suffix DRQ confirms the red LED variant and screw terminal configuration against the official Mallory datasheet. Ensure the operating voltage aligns with the 3-15V DC specification. Confirm mounting hole dimensions match the panel design requirements before procurement.

Selection Notes

Select this component when both audible alarm and visual status indication are required in a single unit. The internal drive simplifies PCB layout by removing external driver components. Verify that the 95 dB output meets regulatory noise limits for the intended environment.

Part Context

This part belongs to the PK series of industrial alarms from Mallory Sonalert. The series is characterized by compact form factors suitable for panel mounting. The manufacturer specializes in audible and visual warning devices for medical, military, and transportation markets.

Replacement Considerations

Cross-reference with PK-27A35EPDBQ if a different LED color or terminal type is acceptable. Verify mechanical dimensions and electrical characteristics match exactly before substitution.