SC250R

Overview

The SC250R is a piezoelectric industrial buzzer manufactured by Mallory Sonalert. It operates on an input voltage range of 60 to 250 VAC or VDC with a current draw of 5 to 18 mA. The device produces a constant tone at a frequency of 2.9 kHz and delivers a sound pressure level of 68 dB at 60V measured from a distance of 61 cm. Designed for panel mounting, it features screw terminals for connection. The unit measures 43 mm in diameter and 35.54 mm in height, weighing approximately 45 g.

Feature Summary

• Internally driven piezoelectric design for direct AC/DC operation
• Industrial-grade construction suitable for harsh environments
• Panel mount configuration with screw terminal connections

Applications

• Industrial machinery status indication
• Commercial equipment alarm systems
• Control panel audio alerts

Procurement Notes

Verify the specific suffix code against official Mallory Sonalert documentation to confirm exact acoustic characteristics, as variants within the SC250 series differ in tone pattern and decibel output. Confirm RoHS compliance status through the manufacturer's latest certification files before procurement. Ensure the selected variant matches the required voltage and frequency specifications for the target application circuit.

Selection Notes

Select this component when a constant audible alert is required for high-voltage industrial panels. The internal driver simplifies circuit design by eliminating external oscillators. Verify that the 68 dB output meets regulatory noise requirements for the installation environment. Ensure the panel cutout dimensions accommodate the 43 mm diameter housing.

Part Context

This part belongs to the SC series of industrial buzzers from Mallory Sonalert. These devices are engineered for durability and reliability in commercial and industrial settings. The series offers various acoustic outputs and mounting options to suit different enclosure requirements while maintaining consistent electrical performance standards across the product line.

Replacement Considerations

Cross-reference with SC250KR for short pulse variations or SC250HR for continuous higher-frequency tones. Verify mechanical fitment and electrical compatibility before substituting. Consult Mallory Sonalert technical support for approved equivalents if the exact SC250R is unavailable.