25LC128
BT-218 (2)BT-21 (13)BT-2 (46)

Knowles

BT-21835-000

500Hz ~ 10kHz Analog Microphone Electret Condenser 1.3V (-53.5dB ±3dB @ 74dB SPL) Solder Pads
Knowles

BT-21834-000

100Hz ~ 10kHz Analog Microphone Electret Condenser 1.3V (-57dB ±3dB) Solder Pads

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