SC250DJ

Overview

The SC250DJ is an industrial-grade piezoelectric buzzer from the Mallory Sonalert SC series, designed for high-voltage AC/DC applications. It operates within a voltage range of 60 to 250V and draws a current of 16 mA. The unit produces a sound pressure level between 66 and 75 dB with a short pulse tone. It features panel mounting capabilities and utilizes threaded terminals or quick-connect tabs for electrical connection. The device measures 1.69 inches in length and width, with a height of 1.41 inches, and weighs approximately 45 grams.

Feature Summary

• Industrial-grade piezoelectric construction for reliable audio signaling
• Internal driver circuitry enables direct connection to AC or DC power sources
• Short pulse operational mode provides distinct auditory alerts
• Robust physical design suitable for panel installation in control environments

Applications

• Industrial machinery status indication
• Control panel alarm systems
• High-voltage equipment monitoring
• Factory automation safety warnings

Procurement Notes

Verify the specific suffix designation (e.g., DJR) against official Mallory Sonalert documentation to confirm exact acoustic output and terminal configuration. Ensure the operating voltage matches the 60-250V specification. Confirm RoHS compliance requirements if applicable to your assembly process. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a self-contained, high-voltage audible indicator is required without external drivers. Consider the 16 mA current draw for power budgeting. Evaluate the 66-75 dB output against ambient noise levels. Verify that the panel cutout dimensions accommodate the 1.69-inch diameter housing. Compare alternative suffixes for variations in tone or mounting style.

Part Context

This component belongs to the SC series of industrial audio indicators manufactured by Mallory Sonalert Products Inc. The series is characterized by internal drive circuits and compatibility with wide voltage ranges. These devices are engineered for durability in demanding industrial settings, offering consistent performance across various environmental conditions compared to standard consumer-grade buzzers.

Replacement Considerations

Consult official Mallory Sonalert substitution guides for verified equivalents. Suffix variations may indicate differences in tone or mounting hardware rather than functional incompatibility. Do not assume cross-compatibility with other manufacturers' high-voltage buzzers without verifying pinout and voltage ratings.