SPM04C-38/1186

Overview

The SPM04C-38/1186 is a piezo MEMS analog microphone manufactured by BeStar Technologies, Inc. It operates within a voltage range of 1.6 V to 3.6 V and features an omnidirectional polar pattern with a sensitivity of -38 dB ±3 dB. The device supports a frequency response from 250 Hz to 10 kHz. It utilizes solder pads for mounting and is rated IP68 for environmental protection.

Feature Summary

• Piezo MEMS construction
• IP68 environmental rating
• Omnidirectional acoustic design

Applications

• Audio recording devices
• Voice recognition systems
• Consumer electronics audio input

Procurement Notes

Verify the specific suffix /1186 against official BeStar documentation to confirm exact packaging and reel specifications. Ensure compatibility with the target PCB footprint and reflow profile requirements. Confirm IP68 sealing integrity if used in harsh environments. Cross-reference datasheet revisions for any updates to electrical characteristics or mechanical dimensions before finalizing procurement orders.

Selection Notes

Select this component when high environmental resistance is required alongside standard analog output. The piezo MEMS technology offers distinct performance characteristics compared to capacitive alternatives. Verify that the -38 dB sensitivity meets system gain requirements. Ensure the operating voltage range aligns with the host circuit's power supply rails.

Part Context

This part belongs to the SPM series of microphones from BeStar Technologies. It represents a specialized solution for applications demanding robustness and compact form factors. The series integrates MEMS fabrication techniques with piezoelectric sensing elements to deliver reliable audio capture in various consumer and industrial settings.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official manufacturer channels for qualified alternates.