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Knowles SPH0641 Telecom Mic from Japan

Knowles SPH0641 digital I2S output microphone for telecom applications, 300 Hz to 3.4 kHz, 3.5 mm x 2.65 mm footprint (dia equiv <10 mm), height 1.15 mm. Used in smart devices for speech recognition. HTS 8518.10.40.00 due to telecom specs.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

Import Tips

Include DSP output specs in entry docs; digital mics scrutinized for hybrid circuit classification

Pre-clear with binding ruling if volume >10k units for consistent classification