SPM0404LE5H-QB

Overview

The SPM0404LE5H-QB is an omnidirectional analog MEMS microphone manufactured by Syntiant. It operates within a voltage range of 1.5 V to 3.6 V and draws a supply current of 250 µA. The device features a frequency response from 100 Hz to 10 kHz with a sensitivity of -38dB ±3dB @ 94dB SPL. Key electrical specifications include a signal-to-noise ratio of 59 dB, an impedance of 300 Ohms, and a top port location. The component utilizes solder pad termination and measures 6.15mm x 3.76mm x 1.25mm.

Feature Summary

• Omnidirectional acoustic design for uniform sound capture
• Analog output interface compatible with standard audio processing circuits
• Enhanced RF protection capabilities integrated into the silicon structure

Applications

• Voice recognition systems requiring low power consumption
• Consumer electronics audio input modules
• IoT devices with limited power budgets

Procurement Notes

Verify the specific suffix Q-B against official Syntiant documentation to confirm environmental compliance and package variant accuracy. Cross-reference the manufacturer part number with authorized distributor catalogs to ensure authenticity. Confirm availability status as production lifecycle changes may affect sourcing options. Validate RoHS compliance details through the most recent datasheet revision before procurement commitment.

Selection Notes

Select this component when an analog output is required rather than digital PDM interfaces. Ensure the operating voltage range of 1.5 V to 3.6 V aligns with the system power rails. Consider the 250 µA supply current for battery-powered applications. Verify that the 59 dB SNR meets the noise floor requirements of the target audio application environment.

Part Context

This microphone belongs to the SiSonic family of surface-mount silicon microphones. It represents a specialized audio sensor designed for integration into compact electronic devices. The product line emphasizes low power operation and robust performance in consumer-grade applications. Syntiant designs these components to replace traditional acoustic transducers in modern portable electronics.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult official Syntiant documentation or authorized distributors for qualified replacement lists. Verify pin compatibility and acoustic specifications before considering alternative components.