PT-1250WQ

Overview

The PT-1250WQ is an externally driven piezoelectric transducer from the Mallory Sonalert PT series. It operates on a peak-to-peak signal with a rated voltage of 5 V and a frequency of 4.8 kHz. The device produces an 80 dB sound pressure level at 5V, 10cm. It features custom wire leads for connection and is designed for through-hole mounting.

Feature Summary

• Externally driven piezoelectric transducer design
• Dual tone audio output capability
• Custom wire lead termination

Applications

• Industrial panel alarms
• Medical equipment indicators
• Transportation system alerts

Procurement Notes

Verify the specific lead configuration against project requirements, as this model utilizes custom wire leads rather than standard pins. Confirm that the external drive circuitry can supply the required peak-to-peak voltage range without exceeding the rated limits to ensure reliable operation and longevity of the piezoelectric element.

Selection Notes

Select this component when a dual-tone alert is required in space-constrained applications. It is suitable for designs where the driving circuit provides the necessary AC signal. Ensure the enclosure allows for adequate sound projection given the 80 dB rating at the specified distance.

Part Context

This part belongs to the PT series of externally driven piezoelectric buzzers. Unlike self-excited models, it requires an external oscillator or microcontroller to generate the driving signal. The series is known for reliability in industrial and medical environments, offering consistent acoustic performance across varying temperature conditions.

Replacement Considerations

The PT-1250PQ is a pin-compatible alternative within the same series. Verify that the pin-out matches the PCB layout if replacing the wire-lead version with the pin-mount version.