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The SPM0408HD5H-SB is an amplified surface-mount silicon microphone from the SiSonic™ series by Knowles Acoustics. It features a rectangular package measuring 4.72mm L x 3.76mm W with a maximum height of 1.35mm. The device operates on a supply voltage of 1.5V to 3.6V and draws 350µA of current. It provides analog output with -22dB ±3dB sensitivity at 94dB SPL and a signal-to-noise ratio of 59dB. The frequency range spans 100Hz to 10kHz, and it has an impedance of 300 Ohms. Operating temperature ranges from -40°C to +100°C.
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the revision level matches documentation requirements. Ensure storage conditions remain within specified limits to maintain shelf life integrity. Check for moisture sensitivity class compliance prior to soldering processes.
Select this component for applications requiring compact omnidirectional audio capture with integrated amplification. Consider the operating voltage range and current consumption against system power budgets. Evaluate the mechanical dimensions against available PCB real estate constraints.
This part belongs to the SiSonic™ family of MEMS microphones manufactured by Knowles Acoustics. It represents a miniaturized solution designed for integration into portable electronic devices where space and power efficiency are critical design parameters.
Consult official documentation for verified substitute part numbers before implementation.
The specification recommends no more than three reflow cycles.
No, board washing, cleaning agents, and ultrasonic processing can damage the device.