SPM0406HE3H-SB

Overview

The Syntiant SPM0406HE3H-SB is a differential mini amplified surface mount silicon microphone featuring enhanced RF protection. It operates within a frequency range of 100 Hz to 10 kHz and supports supply voltages from 1.5 V to 5.5 V. The device provides omnidirectional acoustic pickup with a sensitivity of -22dB ±3dB @ 94dB SPL in single-ended mode, or -36dB ±3dB in differential mode with unity gain. It utilizes solder pads for termination and is housed in a rectangular package measuring 4.72mm x 3.76mm.

Feature Summary

• Integrated differential mini amplifier with enhanced RF protection
• Omnidirectional acoustic response for consistent sound capture
• Surface mount silicon MEMS construction for reliable performance

Applications

• Voice recognition systems requiring low power consumption
• Smart home devices needing RF immunity
• Wearable audio electronics with space constraints

Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm that the specific suffix matches the required electrical characteristics, as variations may exist within the product line. Ensure storage conditions comply with moisture sensitivity level requirements to maintain reliability before assembly.

Selection Notes

Choose this component when differential signal output is necessary to improve noise rejection in electrically noisy environments. The wide voltage range allows flexibility in system design across various logic levels. Consider the physical dimensions and solder pad termination method for PCB layout compatibility during the initial design phase.

Part Context

This model belongs to the SiSonic™ series of MEMS microphones designed for AI-enabled audio applications. It represents an evolution in silicon microphone technology by integrating amplification directly on the die. This integration reduces external component count and improves signal integrity compared to traditional analog MEMS solutions.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing circuit designs if considering alternative models from the same manufacturer family.