Version 1.3

Date: 2023-04-19

- 1 -

MEMS Microphone IC

3SM122HZB1VD-R

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3SM122HZB1VD-R MEMS Microphone IC

Product Description

The 3SM122HZB1VD-R microphone IC are integrated with specialized pre-amplification ASIC to

provide high sensitivity, high SNR output from a capacitive audio sensor. It’s packaged for surface

mounting and high temperature reflow assembly. 3SM122HZB1VD-R which is able to endure reflow

temperature up to 260 ℃ for 30 seconds can be used in SMT process. It is widely used in

telecommunication and electronics device such as headset, wearable device.

Features

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Bottom port

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High stability - no risk of membrane aging

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Suitable for automatic pick-and-place handler and SMT process

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Miniature dimension 2.75mm x 1.85mm x 0.90mm

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Low current consumption 80uA

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RoHS/Green compliant

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Sensitivity deviation within ±1dB

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Package type : LGA 4-pin

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Omnidirectional

Applications

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ANC Headsets

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TWS Headsets

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Wearable Devices

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IoT Devices