PT-4175PQ

Overview

The PT-4175PQ is an externally driven piezoelectric transducer manufactured by Mallory Sonalert Products Inc. It operates within a voltage range of 3 to 30 Vpp and produces a sound pressure level of 87 dB at 5V measured at 10cm. The device functions at a frequency of 750 Hz with a current draw of 1.5 mA at 5V. It features through-hole PC pin termination and has physical dimensions of 44 mm in diameter by 14 mm in height.

Feature Summary

• Externally driven piezoelectric design for flexible signal integration
• Through-hole PC pin mounting for standard PCB assembly
• Wide operating voltage range supporting various logic levels

Applications

• Industrial control panel indicators
• Consumer electronics status alerts
• Medical equipment audio signaling

Procurement Notes

Verify the specific datasheet revision to confirm electrical tolerances and acoustic performance metrics before finalizing the design. Ensure the PCB footprint matches the PC pin spacing and diameter specifications provided in the official mechanical drawings. Confirm that the external drive circuit can supply the required peak voltage without exceeding the component's maximum ratings.

Selection Notes

Select this component when an externally driven piezo element is required rather than a self-oscillating buzzer. The 44mm diameter provides a balance between acoustic output and board space constraints. Consider the 87 dB SPL rating relative to the ambient noise environment of the target application to ensure audibility.

Part Context

This part belongs to the broader category of piezoelectric transducers offered by Mallory Sonalert. Unlike complete alarm units, this transducer requires an external oscillator or microcontroller to generate the driving signal. It serves as a core acoustic element for custom audio alert systems across industrial and medical sectors.

Replacement Considerations

Cross-reference sheets indicate Mallory Sonalert offers alternatives to obsolete Murata buzzers. Verify pin compatibility and acoustic output equivalence if substituting from other manufacturers. Check for direct cross-references in the official Mallory Sonalert documentation.