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SC250NR
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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：2.9kHz
- Technology：Piezo
- Operating Mode：Single Tone
- Duration：-
- Sound Pressure Level (SPL)：80dB @ 60V, 61cm
- Current - Supply：5 ~ 18mA
- Port Location：Top
- Operating Temperature：-30°C ~ 65°C
- Approval Agency：cUL, UL
- Ratings：-
- Ingress Protection：-
- Mounting Type：Panel Mount
- Termination：Screw Terminal, Quick Connect Tab - 0.250" (6.35mm)
- Height - Seated (Max)：1.399" (35.54mm)
- Voltage Range：60 ~ 250V
- Size / Dimension：1.687" Dia (42.85mm)
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Overview
The SC250NR is a piezoelectric buzzer from the Mallory Sonalert SC series, designed for panel mounting. 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 short pulse tone at a frequency of 2.9kHz with an internal driver circuit. It features screw terminals and quick-connect tabs (0.250 inch) for termination. The unit has a diameter of 42.85mm and functions within a temperature range of -30°C to 65°C.
Feature Summary
- Internal driver circuitry enables direct connection to AC or DC power sources without external oscillators.
- Piezoelectric technology provides reliable audio indication in industrial environments.
- Dual termination options include screw terminals and quick-connect tabs for flexible wiring.
Applications
- Industrial machinery status indicators
- Control panel alarm systems
- Equipment fault detection alerts
Procurement Notes
Verify the specific suffix 'NR' against the manufacturer's official datasheet to confirm RoHS compliance and terminal configuration details. Ensure the operating voltage matches the 60-250V range specified for this model. Confirm that the short pulse waveform aligns with the required audible alert pattern for the intended application before finalizing procurement.
Selection Notes
Select this component when high-voltage AC or DC operation is required directly from the control circuit. The integrated driver simplifies design by eliminating the need for separate oscillator components. Consider the 2.9kHz frequency and short pulse duration for distinct auditory signaling in noisy industrial settings where continuous tones may be less effective.
Part Context
This part belongs to the Mallory Sonalert SC series of industrial buzzers. The series is known for robust construction and compatibility with various industrial standards. The SC250 variant specifically targets applications requiring medium sound pressure levels and versatile mounting options.
FAQ
What is the operating voltage range for the SC250NR?
The SC250NR operates on AC or DC voltages ranging from 60V to 250V.
Does the SC250NR require an external driver circuit?
No, it features an internal driver circuit that allows direct connection to the power source.
