SC628AEJR

Overview

The SC628AEJR is a piezoelectric audio indicator from the Mallory Sonalert SC series, designed for industrial applications. It operates on 6 to 28 VAC or DC input with a rated voltage of 28 VAC/DC. The device produces a slow pulse tone at a frequency of 2 kHz and delivers a sound pressure level of 74 dBA. Electrical characteristics include a current rating of 8 mA. It features screw termination style and flush mount installation. Physical dimensions are approximately 43 mm in diameter and 1.41 inches (35.8 mm) in height.

Feature Summary

• Generates a slow pulse acoustic signal using piezoelectric technology
• Supports both AC and DC power inputs within the specified voltage range
• Designed for flush mounting into panel enclosures
• Utilizes screw terminal connections for secure electrical interface

Applications

• Industrial equipment status indication
• Control panel alarm signaling
• Medical device audio alerts
• Transportation system monitoring

Procurement Notes

Verify the specific suffix 'J' confirms the slow pulse timing and soft volume variant against the official Mallory Sonalert datasheet. Confirm RoHS compliance status as documentation may vary by revision. Ensure the required operating voltage matches the 6-28 VAC/DC specification. Check for any specific CUL approval requirements if mandated by local safety standards for the intended enclosure.

Selection Notes

Select this model when a low-volume, intermittent alert is required for panel-mounted systems. The 8 mA current draw suits low-power control circuits. The flush mount design minimizes protrusion into enclosed spaces. Compare with continuous tone variants like SC628LR if constant warning is needed instead of pulsed signaling. Ensure the 74 dBA output meets audibility requirements for the installation environment.

Part Context

The SC628AEJR belongs to the Mallory Sonalert SC series, a foundational line of electronic sounders introduced in the 1960s. This series established the standard for compact, reliable piezoelectric alarms. The manufacturer, Mallory Sonalert Products Inc., is based in Indianapolis and specializes in high-performance audio and visual warning devices for industrial, medical, and consumer markets.

FAQ

What is the difference between SC628AEJR and SC628AE?

The 'J' suffix typically denotes specific packaging or minor manufacturing revisions such as RoHS compliance or lead-free terminals, while the core acoustic function remains identical. Verify the exact meaning in the latest datasheet.

Is the SC628AEJR suitable for hazardous environments?

Standard SC series units are not inherently rated for hazardous locations unless specifically certified. Consult the official documentation for explosion-proof ratings or select models explicitly designated for dangerous areas.