PK-20A38PQ

Overview

The PK-20A38PQ is a piezoelectric buzzer from Mallory Sonalert Products Inc., designed for board mounting. It operates on a DC input voltage range of 3 to 24VDC. The device generates a constant tone at a frequency of 3.8kHz with a sound pressure level of 95dB. Physical dimensions are 23mm x 18mm, utilizing PC pin termination.

Feature Summary

• Piezoelectric technology for reliable audio indication
• Internal driver circuitry for direct connection
• Constant tone output mode
• Board mount configuration with PC pins

Applications

• Industrial control panels
• Medical equipment alarms
• Automotive status indicators
• Consumer appliance alerts

Procurement Notes

Verify the specific voltage rating and acoustic requirements against the official datasheet before procurement. Confirm that the 3-24VDC operating range aligns with the target system power supply. Ensure the board mounting footprint matches the PCB design specifications. Check for any regional compliance certifications required for the end application.

Selection Notes

Select this component when a compact, high-decibel indicator is needed for space-constrained designs. The wide voltage tolerance simplifies integration across various power domains. Consider the 3.8kHz frequency for optimal human audibility in noisy environments. Evaluate thermal constraints if the device will operate continuously near maximum voltage limits.

Part Context

This part belongs to the Sonalert series of piezoelectric buzzers. It is manufactured by Mallory Sonalert Products Inc., a specialist in audio signaling devices. The product line focuses on robust, internally driven indicators for industrial and commercial applications.

FAQ

What is the operating voltage range?

The PK-20A38PQ operates within a DC voltage range of 3V to 24V.

Is the tone continuous or intermittent?

The device produces a constant tone output.