Projects Unlimited PCB Mount Omnidirectional Microphone 9.7mm

The Projects Unlimited PCB Mount Omnidirectional Microphone 9.7mm is an electret condenser microphone element with a 9.7 mm diameter, designed for direct integration into printed circuit board designs. Its omnidirectional pickup pattern captures sound from all directions, and its compact form suits space-constrained projects.

Key Features

• Omnidirectional pickup pattern for capturing sound from all directions
• PCB mount for direct soldering
• Frequency response from 20 Hz to 20 kHz
• Sensitivity of -46 dB
• Impedance of 2.2 kohm
• Tolerance of ±3%

Technical Performance

The microphone operates on a supply voltage ranging from 1.5 VDC to 10 VDC, with a maximum current draw of 500 µA. This low power requirement makes it suited to battery-powered and portable devices. The 2.2 kohm impedance provides straightforward interfacing with standard audio amplifier circuits.

Applications

Its omnidirectional design makes it suitable for conference phones, voice recorders, and environmental monitoring devices, where audio needs to be gathered from a 360-degree field. The wide frequency response from 20 Hz to 20 kHz covers the full range of audible sound.

Dimensions and Weight

The microphone measures 33 mm x 15 mm x 43 mm (L x W x D) and weighs 1 g.

The Projects Unlimited PCB Mount Omnidirectional Microphone 9.7mm is a practical choice for designers who need a compact, PCB-mounted audio input with a defined sensitivity, impedance and supply range.