SCE028LD2DT1B

Alarms, Buzzers, And Sirens Overview

The SCE028LD2DT1B is a piezoelectric buzzer from the SCE series by Mallory Sonalert Products Inc. It operates on DC input with a voltage range of 16 to 28V and draws 20mA. The device emits an 85dB sound pressure level at 10V measured at 61cm, with a frequency of 1.8kHz. It features internal drive circuitry for a slow warble mode. Physical dimensions include a 42.98mm diameter and a maximum height of 38.39mm. It utilizes terminal block connections and is designed for panel mounting.

Alarms, Buzzers, And Sirens Feature Summary

• Internal drive circuitry enables direct connection without external oscillators
• Piezoelectric technology provides reliable audio signaling in industrial environments
• Slow warble operating mode offers distinct auditory alert characteristics

Alarms, Buzzers, And Sirens Applications

• Industrial machinery status indication
• Control panel alarm systems
• Equipment failure notification units

Alarms, Buzzers, And Sirens Procurement Notes

Verify the specific suffix DT1B confirms the slow warble tone and 20mA current rating against official datasheets. Confirm terminal block termination type matches panel wiring requirements. Ensure voltage supply aligns with the 16-28V DC specification for proper operation.

Alarms, Buzzers, And Sirens Selection Notes

Select this model when a low-current 20mA draw is required compared to standard 40mA variants. The 1.8kHz frequency and slow warble pattern distinguish it from constant or high-frequency tones. Verify panel cutout compatibility with the 42.98mm diameter dimension during enclosure design.

Alarms, Buzzers, And Sirens Part Context

This component belongs to the SCE series of industrial-grade audio indicators. The series offers various tones and voltages. The SCE028 base indicates a 28mm class housing size, though actual diameter is larger. It is part of Mallory Sonalert's portfolio of piezoelectric buzzers for audible alerts.

Alarms, Buzzers, And Sirens Replacement Considerations

SCE028LD2TT1B offers similar specifications but operates at 2kHz with a different tone profile. SCE028SD2SP1B provides a slow pulse mode but requires 40mA current. Verify electrical parameters before substitution.