SC648MAH

Alarms, Buzzers, And Sirens Overview

The SC648MAH is a piezoelectric alarm transducer from the Mallory Sonalert SC series, designed for industrial applications. It operates on an AC/DC input voltage range of 10V to 48V with a maximum operating current of 19mA. The device generates a continuous tone at a resonant frequency of 4.5kHz and produces a sound pressure level of 68dB at 10V measured at 61cm. It features panel mount installation via screw terminals and includes internal driving circuitry. The unit is rated for an extended operating temperature range of -40°C to +85°C.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezoelectric design for simplified integration
• Extended temperature rating suitable for harsh environments
• Continuous tone output for persistent alerting
• Panel mount construction with screw terminal connections

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indicators
• Harsh environment safety alarms
• Equipment fault detection systems
• Process control panel alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix MAH against official Mallory Sonalert documentation to confirm the 4.5kHz frequency and 68dB SPL ratings. Ensure the application requires continuous tone operation rather than pulse modes. Confirm that the 10-48V AC/DC input matches the system power supply. Check for required environmental certifications such as RoHS or REACH compliance before finalizing procurement.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a high-temperature rating up to 85°C is required alongside a 4.5kHz acoustic signature. Compare the 68dB output against louder alternatives like the SC648ANJR if higher audibility is needed. Verify that the panel mount form factor fits the enclosure constraints. Consider the 19mA current draw for power budget calculations in low-power systems.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the Mallory Sonalert SC series of industrial alarms. The series offers various frequencies and mounting options. The MAH suffix specifically denotes the 4.5kHz continuous tone variant with extended temperature capabilities. Other variants in the series include different frequencies such as 2.9kHz or 2kHz and different sound pressure levels.

Alarms, Buzzers, And Sirens Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.