MP33AB01TR

Microphones Overview

The MP33AB01TR is an omnidirectional analog MEMS microphone manufactured by STMicroelectronics. It operates on a single supply voltage ranging from 1.5 V to 3.6 V, with a typical rated voltage of 2.2 V and a supply current of 250 µA. The device features a frequency range of 100 Hz to 10 kHz and a sensitivity of -38 dB ±3 dB at 94 dB SPL. It provides a signal-to-noise ratio of 63 dB. The component utilizes a bottom-port pad termination in a rectangular surface-mount package measuring 3.76 mm x 2.95 mm x 1.10 mm.

Microphones Feature Summary

• Omnidirectional acoustic sensitivity for uniform sound capture
• Low power consumption suitable for battery-operated devices
• High signal-to-noise ratio for clear audio reproduction
• Compliant with reflow soldering processes

Microphones Applications

• Voice recognition systems
• Mobile communication devices
• Consumer electronics audio input

Microphones Procurement Notes

Verify the obsolete status of this part number before procurement planning. Confirm availability through authorized distributors or secondary markets as standard supply may be discontinued. Ensure compatibility with existing design specifications if substituting components. Check RoHS compliance documentation for regulatory adherence. Validate package dimensions against PCB footprint requirements during integration.

Microphones Selection Notes

Select this component for applications requiring low-power analog audio sensing. Consider the 1.5 V to 3.6 V operating range for system power budgeting. Evaluate the 63 dB SNR against noise floor requirements. Verify the bottom-port orientation for acoustic path alignment. Assess the rectangular package size for spatial constraints within the target enclosure.

Microphones Part Context

This microphone belongs to the MP33 series of silicon MEMS sensors. It shares the fundamental sensing technology with variants like the MP33AB01H. The series utilizes specialized silicon micromachining for acoustic detection. These components are designed for compact, low-profile audio applications.

Microphones Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.