PK-20N38PQ

Overview

The PK-20N38PQ is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc., designed for board-mount applications. It operates within a voltage range of 3 to 28 VDC and produces a constant tone at a frequency of 3.8 kHz. The device delivers a sound pressure level of 90 dBA and features compact physical dimensions of 23 x 18 mm.

Feature Summary

• Piezoelectric transducer technology for reliable audio signaling
• Integrated internal driver circuitry for direct connection
• Compact surface-mount form factor suitable for space-constrained designs

Applications

• Industrial control panel indicators
• Medical equipment status alerts
• Consumer electronics warning signals

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to ensure compatibility with required mounting styles and acoustic specifications. Confirm RoHS compliance status and lead times directly with authorized distributors prior to finalizing procurement orders.

Selection Notes

Select this component when a low-profile, board-mounted solution is required for audible alarms. Ensure the operating voltage aligns with the 3-28 VDC specification and that the 3.8 kHz frequency meets the intended alert requirements.

Part Context

This part belongs to the Mallory Sonalert product line of audio indicators. It utilizes piezoelectric elements to generate sound efficiently. The design focuses on providing clear auditory feedback in various electronic systems without requiring complex external driving circuits.

FAQ

What is the operating voltage range?

The device operates within a DC voltage range of 3 to 28 volts.

Is an external driver required?

No, the unit includes an internal driver circuit for direct connection to power sources.