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SC250ER
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Product Detailed Parameters
- Description：BUZZER PIEZO 42.85MM PNL MNT
- Series：SC
- Mfr：Mallory Sonalert Products Inc.
- Package：Bulk
- Driver Circuitry：Indicator, Internally Driven
- Input Type：AC, DC
- Frequency：1.9kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：55dB @ 60V, 61cm
- Current - Supply：5 ~ 16mA
- Port Location：Top
- Operating Temperature：-30°C ~ 65°C
- Approval Agency：-
- Ratings：-
- Ingress Protection：-
- Mounting Type：Panel Mount
- Termination：Screw Terminal, Quick Connect Tab - 0.250" (6.35mm)
- Height - Seated (Max)：1.809" (45.96mm)
- Voltage Range：60 ~ 250V
- Size / Dimension：1.687" Dia (42.85mm)
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Overview
The SC250ER is a piezoelectric industrial alarm from the Mallory Sonalert SC series, designed for panel mounting. It operates on AC or DC voltages ranging from 60V to 250V with a current draw of approximately 13mA. The device emits a continuous tone at a frequency of 1900 Hz. Acoustic performance includes a sound pressure level between 55 dBA and 65 dBA measured at 2 feet (61 cm) using 60 Vac/DC as the reference standard. It features screw terminals for connection and is housed in a black enclosure.
Feature Summary
- Piezoelectric technology providing reliable acoustic signaling
- Internal driver circuitry for direct AC/DC operation
- Continuous tone output mode for persistent alerts
- Panel mount design with screw terminal connections
Applications
- Industrial machinery status indication
- Control panel alarm systems
- Electrical equipment monitoring
- Safety warning systems
Procurement Notes
Verify the specific voltage rating and acoustic requirements against the official Mallory Sonalert datasheet before procurement. Confirm that the operating environment falls within the specified electrical limits. Ensure the mounting method aligns with the panel mount specification. Check for RoHS compliance status if required by project regulations. Validate terminal type compatibility with existing wiring infrastructure.
Selection Notes
Select this model when a continuous audible alert is required for high-voltage industrial environments. The 1900 Hz frequency offers distinct audibility compared to standard tones. Consider the 55-65 dBA output range for moderate noise applications. The screw terminal interface simplifies installation in fixed industrial setups. Compare with other SC series variants if different frequencies or pulse modes are needed.
Part Context
This component belongs to the Mallory Sonalert SC series of industrial alarms. These devices are engineered for durability in demanding operational settings. The series utilizes piezoelectric elements for efficient sound generation. Standard features include internal drivers and robust panel-mount housings. The SC250ER specifically addresses needs for continuous tone signaling at higher voltage levels.
Replacement Considerations
SC250KR: Different frequency (2.9 kHz) and pulse mode. SC250JR: Different frequency (2.9 kHz) and pulse mode. SC250HR: Different frequency (4.5 kHz) and continuous mode. SC250DP: Different frequency (1.9 kHz) but flush mount style.
