SC628F

Overview

The SC628F is a piezoelectric audio indicator from the Mallory Sonalert SC series, designed for industrial applications. It operates on a DC voltage range of 6 to 28V with a rated current of 16 mA. The device produces a continuous tone at a frequency of 2.9 kHz and achieves a sound pressure level of 76 dBA. It features screw terminals for connection and is intended for panel mounting. The unit has a diameter of 43 mm and a height of approximately 33 mm, weighing 45 g.

Feature Summary

• Piezoelectric technology for reliable acoustic signaling
• Continuous tone operation mode
• Screw terminal connection interface
• Panel mount installation style

Applications

• Industrial equipment status indication
• Alarm systems requiring audible alerts
• Control panel monitoring

Procurement Notes

Verify the specific suffix (e.g., F, FR, N) as it determines electrical parameters like frequency and sound level. Confirm RoHS compliance status as some variants may not be compliant. Check datasheet for exact dimensional tolerances and operating temperature ranges before integration.

Selection Notes

Select based on required sound pressure level and frequency for the specific environment. Ensure the mounting hole diameter matches the 43 mm specification. Verify that the control circuit can supply the required 16 mA current at the operating voltage within the 6-28V DC range.

Part Context

Part of the Mallory Sonalert SC series, established in the 1960s as a foundational component for electronic sound alarms. The series is known for robust industrial performance and long-term availability in critical signaling applications.

Replacement Considerations

SC628NLR offers similar dimensions but wire leads instead of screws. SC628MH provides a different frequency (4.5 kHz) and MIL/Rugged rating. Verify pinout and mounting compatibility when substituting.