RDT-4.000-9090-NS2

Overview

The RDT-4.000-9090-NS2 is an externally driven piezoelectric transducer manufactured by Raltron Electronics. It operates at a nominal voltage of 3 V with a current consumption of 3 mA. The device generates sound at a frequency of 4 kHz and produces a sound pressure level of 65 dB when measured at 3 V from a distance of 10 cm. The component features a surface mount package with dimensions of 9 mm x 9 mm. It is designed for structural integrity via solder pads and supports operating temperatures ranging from -40°C to 105°C.

Feature Summary

• Externally driven piezoelectric design for flexible circuit integration
• Surface mount construction ensuring structural integrity on PCBs
• Wide operating temperature range supporting thermal stability in diverse environments

Applications

• Electronic alarm systems requiring audible alerts
• Consumer electronics indicating operational status
• Industrial control panels signaling fault conditions

Procurement Notes

Verify the specific ordering suffix to confirm package type, as variations such as Cut Tape or Tape & Reel may affect handling requirements. Confirm that the external drive circuitry matches the 3 V nominal voltage and 3 mA current specifications. Ensure the PCB footprint aligns with the 9x9 mm surface mount pad layout. Validate that the application environment remains within the -40°C to 105°C operating temperature range to maintain performance reliability.

Selection Notes

Select this component when a low-profile, surface-mount piezo transducer is required for compact designs. The 4 kHz frequency provides clear audible feedback suitable for general alerting purposes. Consider the 65 dB output level relative to the noise environment of the target application. The wide temperature range makes it suitable for both consumer and industrial settings where thermal extremes may occur during operation.

Part Context

This part belongs to the RDT series of piezoelectric buzzers from Raltron Electronics. The series offers various frequencies and form factors optimized for different acoustic needs. The RDT-4.000-9090-NS2 specifically targets applications needing a balance between size constraints and sufficient sound output. It complements other Raltron components in signal generation and indication circuits.

Replacement Considerations

Direct substitutes include the RDT-4.000-9090-NS1 if package variations are acceptable. Other Raltron models like the RDT-4.500-1207-NS1 offer different frequencies but require electrical re-evaluation. Verify pin compatibility and acoustic output levels before swapping to ensure functional equivalence.

FAQ

What is the driving method for this transducer?

It is an externally driven piezoelectric transducer, meaning it requires an external oscillator or driver circuit to generate the AC signal.

How does the operating temperature range affect performance?

The specified range of -40°C to 105°C ensures stable operation and prevents failure under extreme thermal conditions common in industrial and automotive environments.