PT-2020PQ

Overview

The PT-2020PQ is an external drive piezoelectric buzzer from the PT series by Mallory Sonalert. It operates at a rated voltage of 5.0 Vp-p with a maximum operating voltage of 30 Vp-p. The device draws a maximum current of 1.5 mA and produces a sound pressure level of 80 dB at 10 cm. Its resonant frequency is 2000 Hz ± 500 Hz, and it features a capacitance of 25,000 pF ± 30% at 120 Hz. Constructed with an ABS777D UL94HB black plastic housing and tin-plated brass lead pins, it weighs 2.4 grams. It supports through-hole installation and functions within an operating temperature range of -20°C to +90°C.

Feature Summary

• External drive piezoelectric design for flexible circuit integration
• Robust ABS777D UL94HB plastic resin housing in black finish
• Tin-plated brass lead pins for reliable solder pin termination

Applications

• General purpose audio indicators
• Panel mount status alerts
• Through-hole PCB signal devices

Procurement Notes

Verify the specific electrical requirements against the official datasheet before procurement. Confirm that the operating voltage and current consumption align with the target circuit design. Ensure the physical dimensions and mounting style are compatible with the intended enclosure or board layout. Check for any regional compliance certifications required for the final application environment.

Selection Notes

Select this component when a low-current, externally driven piezoelectric buzzer is required for panel or board mounting. The 5V rated voltage suits standard logic-level interfaces. Consider the 80 dB output and 2 kHz frequency for clear audible signaling. The through-hole format and specific housing material define its mechanical integration constraints compared to surface-mount alternatives.

Part Context

This part belongs to the PT series of transducers manufactured by Mallory Sonalert Products Inc. The series focuses on external drive piezoelectric buzzers designed for versatile audio indication tasks. These components typically utilize standard through-hole termination methods and robust plastic housings suitable for various industrial and commercial environments.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by matching electrical parameters and mechanical dimensions before considering alternative sources.