SCE028SD3DT7B

Alarms, Buzzers, And Sirens Overview

The SCE028SD3DT7B is an industrial-grade piezoelectric buzzer from the Mallory Sonalert SCE series. It operates on a DC voltage range of 16 to 28V with a current rating of 40mA. The device produces a fast warble sound pattern at a frequency of approximately 3kHz (specifically 2.9kHz). It delivers a sound pressure level of 65dB measured at 16V and a distance of 61cm. The unit features panel mounting with terminal block connections.

Alarms, Buzzers, And Sirens Feature Summary

• Internally driven piezoelectric technology for direct connection
• Fast warble acoustic output pattern
• Industrial grade construction for demanding environments

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indication
• Equipment alarm systems
• Control panel audio alerts

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific acoustic pattern, as datasheets may list this model as either 'fast warble' or 'dc warble'. Confirm the exact sound pressure level requirements against the 65dB specification. Ensure the 16-28VDC operating range matches the system power supply. Check terminal block compatibility for installation.

Alarms, Buzzers, And Sirens Selection Notes

Select this component when a distinct warble tone is required for attention-grabbing alerts in industrial settings. The internal driver simplifies circuit design by eliminating external oscillators. Consider the 65dB output level relative to ambient noise; louder models like the SCE028LD3MG4B are available if higher volume is needed.

Alarms, Buzzers, And Sirens Part Context

This part belongs to the SCE series of 30mm alarms, which includes electronic volume control options. The series offers various acoustic patterns and sound levels to suit different industrial signaling needs. Mallory Sonalert provides these devices for reliable audio indication in critical applications.

Alarms, Buzzers, And Sirens Replacement Considerations

The SCE028LD3DT7B is a confirmed substitute offering similar dimensions but with a loud dc warble pattern. For higher volume requirements, the SCE028LD3MG4B provides a multi-tone loud output. Verify that the replacement maintains the required 16-28VDC input range.