AUM-5247L-R

Overview

The AUM-5247L-R is a unidirectional electret condenser microphone manufactured by PUI Audio. It features an impedance of 680 Ohms and a sensitivity of -47 dB. The device operates at a supply voltage of 1.5 V and utilizes SMD/SMT termination. Its physical dimensions are 9.7 mm in diameter, with a height of 5.2 mm.

Feature Summary

• Unidirectional acoustic design for focused sound capture
• Low impedance output suitable for direct interface
• Surface-mount compatible construction

Applications

• Voice recognition systems
• Consumer audio recording devices
• Communication equipment

Procurement Notes

Verify component status as this model is listed as End of Life. Confirm availability through authorized distributors or surplus channels. Ensure compatibility with existing PCB footprints if replacing active inventory. Check RoHS compliance documentation for current manufacturing standards.

Selection Notes

Select this component for applications requiring low-voltage operation at 1.5 V. The 680 Ohm impedance differs from standard 2.2 kOhm variants, requiring appropriate biasing circuitry. Consider the unidirectional characteristic for noise rejection needs compared to omnidirectional alternatives.

Part Context

This microphone belongs to the AUM series of electret condenser microphones. It shares the 9.7 mm form factor common to many PUI Audio surface-mount devices but distinguishes itself through its specific 680 Ohm impedance and unidirectional polar pattern.

Replacement Considerations

AUM-5047L-3-R offers similar unidirectional characteristics and dimensions but operates at 2 V with 2.2 kOhm impedance. AUM-5047L-4-R is also discontinued and has different electrical parameters.