SC250DPR

Overview

The SC250DPR is a piezoelectric buzzer from the Mallory Sonalert SC series, designed for industrial audio indication. It operates on AC or DC input within a voltage range of 60 to 250V and draws a supply current between 5 and 18mA. The device generates a sound pressure level of 68dB at 60V measured from a distance of 61cm. It produces a tone frequency of 2.9kHz in a short pulse mode with a duration of 0.5 to 1.2 pulses per second. The unit features internal driving circuitry and utilizes threaded terminals or quick-connect tabs measuring 0.250 inches (6.35mm) for connection. It is constructed for panel mounting with a circular diameter of 42.85mm.

Feature Summary

• Integrates internal drive circuitry for direct operation without external drivers
• Supports both AC and DC power inputs across a wide voltage range
• Features a compact circular design suitable for flush panel mounting

Applications

• Industrial machinery status indicators
• Control panel alarm systems
• High-voltage equipment monitoring

Procurement Notes

Verify the specific suffix against the manufacturer's official datasheet to confirm terminal type and acoustic characteristics. Ensure the operating environment temperature falls within the specified -30°C to 65°C range. Confirm that the required voltage aligns with the 60-250V specification before procurement.

Selection Notes

Select this component when high-voltage AC or DC signaling is required for audible alerts. The integrated driver simplifies circuit design by eliminating the need for separate oscillator components. Consider the 68dB output level relative to ambient noise conditions to ensure adequate audibility.

Part Context

This part belongs to the SC series of industrial alarms manufactured by Mallory Sonalert Products Inc. The series is characterized by robust construction and compatibility with standard industrial control voltages. The SC250DPR specifically denotes the variant with threaded or quick-connect terminals and a 2.9kHz frequency output.

FAQ

What is the operating mode of the SC250DPR?

The SC250DPR operates in a short pulse mode with a frequency of 0.5 to 1.2 pulses per second.

Does the SC250DPR require an external driver?

No, the device includes internal driving circuitry, allowing it to be connected directly to the power source.