RS PRO Uni-Directional Surface Mount 6 mm Electret Condenser Microphone, Sensitivity -47dB, 2V Operating Voltage 724-3138

RS PRO model 724-3138 is a uni-directional electret condenser microphone designed for surface mount installation in electronic devices and PCB assemblies. Measuring 6 mm in diameter and 2.2 mm in height, it offers an optimal balance of sensitivity and compactness for professional audio capture applications.

Operating at a standard 2V supply with a supply current of 500 μA, this microphone achieves a sensitivity of -47 dB and an output impedance of 2.2 kΩ. Its frequency response spans 50 Hz to 16 kHz, making it suitable for a wide range of sound detection scenarios from voice to environmental noise.

Uni-directional directivity improves focused sound pickup, reducing interference from ambient sounds and improving clarity in demanding electronic and industrial settings. The microphone is designed for solder pad termination, facilitating efficient surface mount technology (SMT) assembly on PCBs.

It performs reliably across an operating temperature range of -20°C to 60°C, supporting stable function in varied environments including industrial, laboratory, and consumer electronic manufacturing. The construction is compliant with standard quality expectations without specific approvals or certifications noted.

This Chinese-origin electret microphone is part of a range of miniature condenser microphones that enhance audio component choices for designers and manufacturers. The model 724-3138 is ideal for integration into sound-sensitive devices requiring precise and focused audio input such as communication devices, sound detection circuits, and consumer electronics.

This microphone features a 6 mm diameter suitable for compact installation. Operates at a standard voltage of 2 volts with low supply current of 500 μA. Offers a sensitivity rating of -47dB ensuring precise audio detection.

Uni-directional directivity enhances focused sound pickup whilst minimizing background noise. The microphone supports frequency response range from 50 Hz to 16 kHz for broad audio coverage. Termination is by solder pad style, allowing for surface mounting on PCBs.

Operates reliably within temperature range from -20°C to 60°C. Output impedance is 2.2 kΩ, compatible with typical electronic circuits. Its low signal to noise ratio of 58 dB ensures clear sound capture in noisy environments.

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