POM-2240P-C33-R

Microphones Overview

The POM-2240P-C33-R is an analog electret condenser microphone manufactured by PUI Audio, Inc. It features an omnidirectional polar pattern with a sensitivity of -40 dB ±3dB and an output impedance of 2.2 kOhms. The device operates on a supply voltage range of 2 VDC to 10 VDC and draws a current of 500 µA. Its physical dimensions are 6 mm in diameter and 2.2 mm in height, utilizing PC pin terminals for soldering.

Microphones Feature Summary

• Omnidirectional acoustic design suitable for general sound capture
• Electret condenser transducer technology for analog audio signal conversion
• Compact cylindrical form factor with integrated pin terminals

Microphones Applications

• Consumer electronic audio input devices
• Voice recognition systems
• General purpose sound detection circuits

Microphones Procurement Notes

Verify the specific sensitivity tolerance (-40 dB ±3dB) and operating voltage requirements (2V-10V) against your circuit design. Confirm that the 2.2 kOhm impedance matches your pre-amplifier input stage. Ensure the PC pin termination style is compatible with your PCB layout and soldering process before finalizing procurement.

Microphones Selection Notes

Select this component when a compact, low-power omnidirectional microphone is required for analog audio applications. The -40 dB sensitivity offers a balance between noise floor and signal strength for typical consumer environments. Consider the 6mm diameter constraint for enclosure design and verify that the 50 Hz to 16 kHz frequency response covers the necessary audio bandwidth for the target application.

Microphones Part Context

This part belongs to the POM series of miniature microphones from PUI Audio, Inc., designed for space-constrained electronics. It shares the standard 6mm x 2.2mm footprint common to this family, differing primarily in sensitivity specifications compared to variants like the POM-2242P or POM-2246P.

Microphones Replacement Considerations

Direct substitutes within the same series include the POM-2242P-C33-R and POM-2246P-C33-R. Note that these alternatives have different sensitivity ratings (-42 dB and unspecified respectively) which may require adjustments to the amplifier gain stage in the host circuit.