SPM0410LR5H-QB

Overview

The SPM0410LR5H-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 160 µA. The device features a sensitivity of -38dB ±3dB @ 94dB SPL and achieves a signal-to-noise ratio of 59dB. Its frequency response spans from 100 Hz to 10 kHz, with an impedance of 400 Ohms. The component utilizes solder pad termination and measures 3.76mm x 2.24mm x 1.20mm.

Feature Summary

• Omnidirectional acoustic pickup pattern for uniform sound capture
• Analog output interface compatible with standard audio processing circuits
• Low power consumption suitable for battery-operated portable devices

Applications

• Voice recognition systems in consumer electronics
• Hands-free communication modules
• Smart home voice assistants

Procurement Notes

Verify the obsolete status of this component before procurement planning. Confirm availability through authorized distributors or secondary market suppliers. Ensure compatibility with existing PCB footprints and design-in requirements. Check for valid RoHS compliance documentation. Evaluate alternative sources if original manufacturing lines are closed.

Selection Notes

Select this part for applications requiring low-profile omnidirectional audio input. Consider the 1.5 V to 3.6 V operating range for system power budgeting. Verify that the analog output interface matches the downstream ADC or amplifier requirements. Assess the 59dB SNR against noise floor constraints in the target environment.

Part Context

This microphone belongs to the SiSonic™ family of silicon MEMS microphones produced by Syntiant. These components are designed for edge-AI and voice processing applications. The series emphasizes low power consumption and small form factors. This specific model represents an older generation product now marked as obsolete.

Replacement Considerations

Public confirmed substitute part numbers: SPU0410LR5H-QB, SPM0410LR5H-QB.