SC250H

Overview

The SC250H is a piezoelectric buzzer from the Mallory Sonalert SC series, designed for industrial audio indication. It operates on AC or DC voltages ranging from 60V to 250V with a current draw of approximately 16mA. The device produces a continuous tone at a frequency of 4.5kHz and delivers a sound pressure level of 80dBA measured at 61cm. It features panel mount installation with screw terminals and functions within a temperature range of -30°C to 65°C.

Feature Summary

• Internal driver circuitry allows direct connection to AC or DC power sources without external components.
• Piezoelectric technology ensures reliable operation in harsh industrial environments.
• Panel mount design facilitates secure integration into control panels and enclosures.

Applications

• Industrial machinery status indicators
• Control panel alarm systems
• Equipment fault signaling

Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm electrical parameters such as frequency and voltage rating. Ensure the terminal type matches the existing wiring infrastructure. Confirm RoHS compliance requirements if applicable to the target assembly. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this model when a high-volume audible alert is required for high-voltage industrial circuits. The internal driver simplifies schematic design by eliminating external oscillators. Consider the 80dBA output for noisy factory floors. Verify that the 60-250V operating range aligns with the system's available power supply rails.

Part Context

This component belongs to the Mallory Sonalert SC series of industrial alarms. These devices are engineered for durability and consistent acoustic performance in demanding settings. The series offers various frequencies and mounting options to suit different enclosure designs and regulatory standards.

Replacement Considerations

SC250HR is a documented variant within the same series offering similar panel mount characteristics but potentially differing in acoustic mode or frequency specifications. Verify exact pinout and voltage compatibility before substitution.