SC250F

Overview

The SC250F is an industrial-grade piezoelectric buzzer from the Mallory Sonalert SC series. It operates on a voltage range of 60 to 250 VAC/DC with a rated current of 16 mA. The device produces a fast pulse tone at a frequency of 2900 Hz and delivers a sound pressure level of 80 dBA at 60 VAC/DC, increasing to 90 dBA at 250 VAC/DC. It features screw termination and flush panel mounting with a diameter of 42.85 mm.

Feature Summary

• Industrial-grade construction designed for harsh environments
• Internal driver circuitry for direct AC/DC connection
• Fast pulse tone generation for high-visibility alerts

Applications

• Industrial machinery status indication
• High-voltage control panel alarms
• Factory automation safety warnings

Procurement Notes

Verify the specific suffix (e.g., F, NR, HJR) against the datasheet to confirm tone type and certification. Confirm voltage compatibility with the 60-250V operating range. Check for UL/cUL approval requirements in your region. Ensure panel cutout dimensions match the 1.25-inch recommendation.

Selection Notes

Select based on required sound pressure level and pulse speed. The SC250F provides a fast pulse suitable for urgent alerts. Compare with SC250NR for constant tone or SC250HJR for slow pulse options. Verify that the 16 mA current draw fits the power supply capacity.

Part Context

Part of the Mallory Sonalert SC series, known for robust piezoelectric indicators. The series offers various voltage ratings and tone patterns. The SC250F specifically targets high-voltage industrial applications requiring reliable audible signaling without external drivers.

Replacement Considerations

SC250NR: Constant tone variant. SC250HJR: Slow pulse variant. SCE048MD3ED5B: Low voltage DC alternative.