RDT-4.000-1375-NS2

Overview

The RDT-4.000-1375-NS2 is an externally driven piezoelectric transducer manufactured by Raltron Electronics. It operates at a nominal frequency of 4 kHz and requires a 12 V drive voltage with a current consumption of 12 mA. The device produces a sound pressure level of 85 dB when measured at a distance of 10 cm under 12 V conditions. Physically, it features a circular design with a diameter of 13.8 mm and a maximum seated height of 7.8 mm. The component utilizes through-hole PC pin termination for mounting on printed circuit boards.

Feature Summary

• Externally driven piezoelectric construction
• Through-hole PC pin termination
• Circular disc form factor

Applications

• Alarm systems
• Buzzer circuits
• Siren devices

Procurement Notes

Verify the specific suffix NS2 against the manufacturer's datasheet to confirm exact dimensional tolerances and electrical characteristics. Ensure the driving circuit can supply the required 12 V and 12 mA. Confirm RoHS3 compliance requirements match the target assembly standards. Check for any specific handling instructions regarding piezoelectric sensitivity during soldering or mechanical stress.

Selection Notes

Select this component when a compact, high-output audible indicator is needed for through-hole assemblies. The 4 kHz frequency provides distinct audibility. Ensure the enclosure allows for adequate sound projection given the 13.8 mm diameter. Verify that the available drive voltage matches the 12 V specification to achieve the rated 85 dB output level without overdriving the element.

Part Context

This part belongs to Raltron's RDT series of piezo transducers designed for audible signaling applications. The series offers various frequencies and sizes to suit different acoustic requirements. The RDT-4.000 variant specifically targets the 4 kHz band, which is commonly used for general purpose alarms due to its balance between penetration and clarity in noisy environments.

Replacement Considerations

Cross-reference with other Raltron RDT series parts sharing the 13.8 mm diameter and 4 kHz frequency. Verify that substitute components maintain the same 12 V operating voltage and through-hole pin configuration to ensure mechanical and electrical compatibility within the existing circuit design.