W-25A

Overview

The W-25A is an externally driven piezo transducer manufactured by East Electronics. It operates at a nominal voltage of 12 V and produces a sound pressure level of 105 dB measured at 12 V. The device functions within a frequency range of approximately 2.2 kHz to 4 kHz, with a specific resonant frequency documented at 3.1 kHz. It features a 45 mm diameter flange design for panel mounting and utilizes PC pins for electrical connection. The unit is rated for operation in temperatures ranging from -40°C to +85°C.

Feature Summary

• Externally driven piezoelectric transducer design
• High acoustic output capability
• Panel mount construction with integrated flange
• Robust thermal performance rating

Applications

• Industrial alarm systems
• Safety sirens
• Buzzer assemblies
• Audible notification devices

Procurement Notes

Verify the specific datasheet version to confirm exact resonant frequency tolerances and pin configuration details. Ensure the driving circuit matches the 12 V requirement and peak-to-peak input specifications. Confirm compliance with RoHS standards if required by the target application environment. Cross-reference the physical dimensions against the panel cutout requirements before finalizing procurement.

Selection Notes

Select this component when a high-decibel audible signal is required in industrial or safety applications. The externally driven nature allows for flexible waveform generation compared to self-oscillating units. Consider the 105 dB output level relative to ambient noise conditions. The panel mount form factor simplifies integration into enclosures requiring direct surface attachment.

Part Context

This part belongs to the East Electronics W series of piezo sounders. The manufacturer specializes in ODM/OEM solutions for piezo sounders, speakers, and alarms. The W-25A represents a standard active component within their broader lineup of acoustic transducers designed for reliable performance in demanding environments.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation. Replacement requires matching the 12 V operating voltage, 105 dB acoustic output, 45 mm flange diameter, and PC pin interface specifications.

FAQ

What is the operating temperature range?

The W-25A is rated for operation between -40°C and +85°C.

How is the device mounted?

It uses a panel mount method with a 45 mm diameter flange and connects via PC pins.