SC628JW

Overview

The SC628JW is a piezoelectric audio indicator from the Mallory Sonalert SC series, designed for panel mounting. It operates on a DC voltage range of 6 to 28 volts with a rated maximum of 28 VDC. The device draws a current of 20 mA and produces a slow warble tone at a frequency of 4.5 kHz. Its acoustic output is rated at 80 dBA. Physical dimensions include a diameter of 33.35 mm (1.68 inches) and a height of 1.68 mm (0.066 inches). Termination is achieved via screw terminals.

Feature Summary

• Generates a slow warble acoustic signal using internal piezoelectric transducers
• Supports direct connection to 6-28 VDC power sources without external drivers
• Features screw terminal termination for secure electrical connections
• Designed for flush or panel mount installation in industrial enclosures

Applications

• Industrial machinery status indication
• Equipment fault warning systems
• Control panel audio alerts
• Process monitoring alarms

Procurement Notes

Verify the specific suffix requirements during procurement, as the source indicates this model may require a second unit for certain configurations. Confirm that the 28 VDC rating aligns with the system power supply. Ensure the screw terminal style matches the available wiring infrastructure. Check for any specific environmental certifications required for the deployment location.

Selection Notes

Select this component when a distinct slow warble alert is needed within a 6-28 VDC system. The 80 dBA output provides moderate audibility suitable for general industrial environments. The compact 33.35 mm diameter allows for integration into standard panel cutouts. Consider the 20 mA current draw when calculating total system power consumption.

Part Context

The SC628JW belongs to the Mallory Sonalert SC series, a foundational line of electronic sounders introduced in the 1960s. This series established the standard for industrial audio indicators. Mallory Sonalert Products Inc., based in Indianapolis, manufactures these devices using proprietary piezoelectric technology. The SC series remains a core product line for reliable, self-contained audio signaling solutions.

FAQ

What is the operating voltage range for the SC628JW?

The SC628JW operates within a DC voltage range of 6 to 28 volts.

How is the SC628JW electrically connected?

It uses screw terminals for electrical termination.

What type of sound does the SC628JW produce?

It produces a slow warble tone at a frequency of 4.5 kHz.