PROJECTS UNLIMITED PCB Mount Omnidirectional Microphone Element - 4mm

The PROJECTS UNLIMITED PCB Mount Omnidirectional Microphone Element is a high-performance, ultra-compact audio transducer designed for seamless integration into a wide range of electronic projects. Engineered for exceptional sound clarity, it delivers a distortion-free response that captures a full, rich audio spectrum, making it an ideal choice for high-fidelity audio capture in constrained spaces.

Its PCB mount design ensures a straightforward and reliable soldering process directly onto your circuit board, eliminating the need for bulky external housings or complex wiring. This compact form factor is perfect for modern, miniaturised electronics where space is at a premium, without compromising on audio quality.

Key Audio Performance

Featuring a true omnidirectional directivity pattern, this microphone element picks up sound uniformly from all directions, providing consistent audio capture in diverse environments. It boasts an impressively wide frequency response range from 20Hz to 20kHz, ensuring it reproduces everything from deep bass tones to the highest treble notes with accuracy. With a sensitivity of -40dB and a 2.2kohm output impedance, it offers a strong, clean signal suitable for direct connection to amplifier inputs or analogue-to-digital converters.

Versatile Power & Integration

The element operates on a low voltage DC supply ranging from 1.5V to 10V, with a maximum drain current of just 500µA. This low power consumption makes it exceptionally suitable for battery-powered and portable devices, helping to extend operational life. Its robust construction and tight manufacturing tolerances (±3%) guarantee reliable and consistent performance across every unit.

Whether you're developing voice-activated devices, audio recording equipment, intercom systems, or IoT sensors, this microphone element provides the professional-grade audio foundation your project requires. Its combination,

Variant Details

• Size: 4mm