PB-4739NL

Overview

The PB-4739NL is an internally driven piezo buzzer manufactured by Soberton Inc. It operates at a rated voltage of 12V with a current consumption of 120mA. The device produces a sound pressure level of 105dB at 12V and has a resonant frequency of 2.5kHz. Its physical dimensions are 47.00mm in length, 39.00mm in width, and a maximum seated height of 23.50mm.

Feature Summary

• Internally driven piezoelectric design for direct signal input
• High acoustic output capability with 105dB sensitivity
• Panel mount construction with flange and wire leads

Applications

• Indicator alarms for electronic equipment
• Audible signaling in embedded systems
• Security system sirens and alerts

Procurement Notes

Verify the specific suffix NL against the manufacturer's latest datasheet to confirm mechanical mounting details and lead configuration. Ensure the operating voltage matches the 12V rating to prevent damage. Confirm that the 105dB acoustic output meets the required environmental noise standards for the intended installation location.

Selection Notes

Select this component when a high-decibel audible indicator is required without external driver circuitry. The internal drive simplifies PCB layout compared to passive buzzers. Consider the 23.50mm height constraint during enclosure design to ensure proper fitment within the designated panel space.

Part Context

This part belongs to the PB Series of piezo buzzers from Soberton Inc., designed for alarm and signaling applications. It differs from other series models by its specific 12V rating and internal driving mechanism, distinguishing it from passive or lower-voltage variants in the manufacturer's catalog.

Replacement Considerations

Direct substitutes must match the 12V rating, 2.5kHz frequency, and 47x39mm form factor. Verify pinout compatibility if replacing with generic equivalents. Cross-reference with Soberton's active product list for updated revisions.