SEARCH
— IC芯片 | 连接器 | 传感器 | 被动器件 —
SC250R is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is BUZZER PIEZO 42.85MM PNL MNT. Review the specifications below when checking this part for your BOM.
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.
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.
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.
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.
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.
Explore related parts through Audio Products, all product categories, ChipApex homepage.

Learn how rectifiers convert AC to DC, compare half-wave and bridge circuits, and select voltage, current, recovery and thermal ratings for your design.
Read More
SC250R is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is…
Read More
Learn how a diode conducts, how to identify anode and cathode, and when to choose rectifier, TVS, Zener or photodiode types for a circuit.
Read More
Learn how a JFET works and how to compare bias, leakage, noise and pinout. Review practical selection questions for high-impedance analog circuits.
Read More
Compare rheostat and potentiometer wiring and functions. Understand divider loading, wiper current, track power and practical component selection.
Read MoreSC250R is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is…
Read MoreSC250R is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is…
Read More
Understand voltage controlled oscillator tuning, phase noise and PLL operation. Check supply noise, output loading and requirements before selection.
Read More
SC250R is listed in the Alarms, Buzzers, And Sirens range at ChipApex. The manufacturer field lists Mallory Sonalert Products Inc.. Its product description is…
Read More
Choose logic inverter ICs by thresholds, supply, output drive and delay. Compare standard and Schmitt-trigger inputs, power sequencing and replacement checks.
Read More
Choose a reed relay for signal switching. Understand hot and cold switching, leakage, contact resistance, isolation and measurement settling requirements.
Read More
Select MOV varistors by continuous voltage, clamping behavior, surge waveform and repetition. Check thermal disconnection, fuse coordination and replacements.
Read More