PT-1550PQ

Overview

The PT-1550PQ is an externally driven piezoelectric buzzer from the Mallory Sonalert PT series. It operates at a nominal voltage of 5 V with a current rating of 1.5 mA. The device produces a dual-tone sound at a frequency of 5 kHz, achieving a sound pressure level of 80 dB when measured at 5V and 10 cm distance. It features through-hole solder pin termination and has physical dimensions of 17 mm in diameter by 4 mm in height.

Feature Summary

• Externally driven piezoelectric transducer design
• Dual-tone audio output capability
• Through-hole mounting with solder pin termination

Applications

• Electronic equipment status indication
• Consumer appliance alerts
• Industrial control panel signaling

Procurement Notes

Verify the specific electrical parameters against the official Mallory Sonalert datasheet before integration. Confirm that the external drive circuitry matches the 5 V / 1.5 mA requirements to ensure proper operation. Check for RoHS compliance documentation if required by your manufacturing standards. Ensure the through-hole footprint aligns with your PCB layout specifications.

Selection Notes

Select this component for applications requiring a low-profile, externally driven piezo indicator. The 5 V operating voltage makes it suitable for logic-level circuits. Consider the 80 dB SPL and dual-tone feature for clear audible feedback. Verify that the 17 mm diameter fits within the available enclosure space.

Part Context

This part belongs to the PT series of piezoelectric buzzers manufactured by Mallory Sonalert Products Inc. The series is designed for board-mount applications where external drive signals are available. Mallory Sonalert is recognized for producing standard panel alarms and indicators for industrial, consumer, and medical markets.

FAQ

Is the PT-1550PQ internally or externally driven?

The PT-1550PQ is an externally driven piezoelectric buzzer, requiring an external signal source to generate sound.

What is the sound pressure level specification?

The sound pressure level is 80 dB when measured at a distance of 10 cm with a 5 V input.