SC628D-BTR

Overview

The SC628D-BTR is an internally driven piezoelectric buzzer from the Mallory Sonalert SC series. It operates on a voltage range of 6 to 28 VDC and draws a current between 6 and 23 mA. The device emits a continuous tone at a frequency of 2 kHz with a sound pressure level of 60 dB measured at 6 V and 61 cm. It features screw terminals and quick connect tabs (0.250 inch) for connection, designed for panel mount installation.

Feature Summary

• Internally driven piezoelectric technology for direct signal input
• Continuous tone generation capability
• Dual termination options including screw terminals and quick connect tabs

Applications

• Industrial equipment status indication
• Control panel alarm systems
• General purpose audio alerting in enclosed enclosures

Procurement Notes

Verify the specific suffix BTR against the manufacturer datasheet to confirm terminal configuration and packaging details. Ensure the operating voltage matches the 6-28 VDC specification. Confirm that the 60 dB SPL rating meets the acoustic requirements for the intended application environment.

Selection Notes

Select this model when a continuous audible alert is required without external driving circuitry. The dual termination style offers flexibility for different panel wiring methods. Consider the 60 dB output level relative to ambient noise levels to ensure adequate audibility.

Part Context

This component belongs to the SC series of industrial alarms manufactured by Mallory Sonalert Products Inc. The SC series utilizes piezoelectric technology and is widely recognized as a standard for panel-mounted audio indicators in various sectors including industrial, medical, and transportation applications.

Replacement Considerations

SC628NDR provides similar piezoelectric performance but differs in frequency (2 kHz vs 2 kHz) and sound pressure level (98 dBA vs 60 dBA). Verify acoustic requirements before substitution.