PB-1621PQ

Overview

The PB-1621PQ is a piezoelectric buzzer manufactured by Mallory Sonalert Products Inc. It operates at a nominal voltage of 12 VDC and produces an acoustic output of 85 dB at a distance of 10 cm. The device features a resonant frequency of 2100 Hz and utilizes a PCB mount configuration with two pins for electrical connection. Its physical dimensions are approximately 16 mm in diameter and 7.5 mm in height, designed for compact integration into electronic assemblies requiring audible signaling.

Feature Summary

• Piezoelectric transduction mechanism for reliable sound generation
• PCB mounting design for direct board integration
• Hermetically sealed construction for environmental protection

Applications

• Industrial control panel signaling
• Medical equipment audio alerts
• Consumer appliance notification systems

Procurement Notes

Verify the specific ordering suffix to ensure compatibility with required voltage and acoustic specifications. Confirm that the mounting hole pattern matches the target printed circuit board layout. Check datasheet revisions for any updates to mechanical dimensions or material composition. Ensure storage conditions comply with manufacturer recommendations to maintain performance integrity prior to assembly.

Selection Notes

Evaluate the 85 dB acoustic output against ambient noise levels to ensure audibility. Consider the 2100 Hz resonant frequency for tone suitability in the application environment. Assess the 12 VDC operating voltage against available power rails. Review the 16 mm diameter constraint for spatial limitations within the enclosure design.

Part Context

This component belongs to the PB series of piezoelectric buzzers from Mallory Sonalert Products Inc. The series offers various voltage and frequency options to suit different signaling needs. The PB-1621PQ specifically addresses requirements for 12 VDC operation with a mid-high frequency tone, fitting within the company's lineup of standard industrial-grade audible indicators.

Replacement Considerations

Cross-reference with other Mallory PB series models such as PB-1621P or PB-1621S if voltage or acoustic level adjustments are needed. Verify pinout compatibility before substituting with generic piezo buzzers. Ensure replacement parts meet the same RoHS compliance standards if required by the manufacturing process.