POM-2738P-C33-R

Microphones Overview

The POM-2738P-C33-R is an omnidirectional electret condenser microphone manufactured by PUI Audio, Inc. It features analog output and operates within a supply voltage range of 2 V to 10 VDC. The device has a rated current of 500 µA and an impedance of 2.2 kΩ. Its sensitivity is specified as -38 dB ±3dB, with a signal-to-noise ratio of 60 dB. The frequency response spans from 50 Hz to 16 kHz. Physically, it measures 6 mm in diameter and 2.7 mm in height, utilizing PC pin termination for surface mount integration.

Microphones Feature Summary

• Omnidirectional acoustic pickup pattern for uniform sound capture
• Analog output suitable for direct interface with audio processing circuits
• Compact cylindrical form factor designed for space-constrained PCB layouts

Microphones Applications

• Consumer electronic devices requiring compact audio input
• Voice recognition systems and smart home assistants
• Portable recording equipment and digital voice recorders

Microphones Procurement Notes

Verify the specific suffix C33 against the official PUI Audio datasheet to confirm terminal configuration and sensitivity tolerance. Ensure the design supports the required 2 V to 10 VDC operating range and 500 µA bias current. Confirm that the 2.2 kΩ impedance matches the preamplifier input requirements of the target application circuit.

Microphones Selection Notes

Select this component when an omnidirectional response is required within a strict 6 mm diameter constraint. The 2.7 mm height profile makes it suitable for thin enclosures. Consider the -38 dB sensitivity and 60 dB SNR for environments with moderate ambient noise levels. Verify compatibility with standard SMT reflow processes given the PC pin termination style.

Microphones Part Context

This model belongs to the POM series of electret condenser microphones from PUI Audio. The series offers various sensitivity and termination options. The POM-2738P-C33-R specifically targets applications needing a balance between size, cost, and reliable analog audio performance in consumer electronics.

Microphones Replacement Considerations

Consult PUI Audio documentation for direct cross-references. Alternative models may include variations in sensitivity or package depth. Ensure any substitute maintains the 6 mm diameter and 2.2 kΩ impedance to fit existing footprints and circuit designs.