RDT-4.000-2272-NS1

Overview

The RDT-4.000-2272-NS1 is a piezo transducer manufactured by Raltron Electronics, designed for externally driven applications. It features a 22mm outer diameter and a height of 7.2mm, utilizing through-hole PC pin termination. The component operates at a resonant frequency of 4kHz with a rated voltage of 3V and a current consumption of 3mA. It delivers an acoustic output of 80dB measured at 3V and 10cm distance. The device accepts peak-to-peak input signals and has a maximum voltage range of 30V.

Feature Summary

• Externally driven piezoelectric design requiring external driver circuitry
• Through-hole mounting configuration with PC pins for PCB integration
• High acoustic output capability suitable for alarm and signaling systems

Applications

• Electronic alarm systems
• Audible warning devices
• Consumer electronics signaling

Procurement Notes

Verify the complete part number including suffixes to ensure correct mechanical dimensions and electrical characteristics. Confirm that the application circuit provides the necessary peak-to-peak drive signal within the 30V maximum rating. Ensure the PCB layout accommodates the 22mm diameter and through-hole pin spacing. Check for active status availability directly from the manufacturer or authorized distributors.

Selection Notes

Select this component when a specific 4kHz resonant frequency is required for audible alerts. The 22mm form factor dictates the available space on the enclosure or PCB. Ensure the driving circuit can supply the required 3V operating voltage and handle the peak-to-peak signal requirements. Consider the 80dB sound pressure level relative to the intended listening distance and ambient noise conditions.

Part Context

This part belongs to the RDT series of piezo transducers from Raltron Electronics. These components are distinct from self-exciting buzzers as they require external oscillation circuits. The series offers various diameters and frequencies to suit different acoustic and spatial constraints in electronic assemblies.

Replacement Considerations

Direct substitutes must match the 4kHz frequency, 22mm diameter, and through-hole termination. Verify equivalent acoustic output and voltage ratings. Cross-reference with other Raltron RDT models or compatible piezo transducers from alternative manufacturers ensuring identical mechanical footprint and electrical specifications.