SC628E

Overview

The SC628E is a piezoelectric audio indicator from the Mallory Sonalert SC series, designed for industrial applications. It operates on a rated voltage of 28 VDC and draws a current of 28 mA. The device produces a slow pulse tone at a frequency of 1900 Hz with a sound pressure level of 78 dBA. It features screw termination and flush mounting capabilities. The unit has a diameter of 43 mm and weighs approximately 45 g.

Feature Summary

• Piezoelectric construction for reliable acoustic output
• Slow pulse tone generation for distinct alert signaling
• Flush mounting design for panel integration

Applications

• Industrial machinery status indication
• Control panel alarm systems
• Equipment fault detection alerts

Procurement Notes

Verify the specific suffix letter (e.g., E, EJ, JR) to confirm exact electrical parameters such as tone type and termination style. Confirm RoHS compliance status as it varies by suffix. Check manufacturer documentation for lead times and availability before ordering.

Selection Notes

Select based on required sound pressure level and tone pattern. Ensure the operating voltage matches the system supply. Verify mounting requirements against available termination styles like screw or wire leads. Consider environmental certifications if used in regulated industries.

Part Context

Part of the SC series of piezoelectric buzzers known for ruggedness and consistent performance in harsh environments. Designed for continuous duty operation with low power consumption relative to electromagnetic alternatives.

Replacement Considerations

SC628EJR offers similar specifications with potential RoHS compliance differences. SC628EJ shares the same core electrical characteristics but may differ in packaging or certification details.