Enhance your audio sensing applications with the SAME SKY MEMS Microphone (Part Number: CMM-3729AB-38116-TR). This compact, surface-mount MEMS microphone is designed for high-performance audio capture in a small package, making it ideal for a wide range of electronic devices.
Manufactured in China, this MEMS microphone features RoHS compliance and is supplied in a reel packaging type, with a unit of measure (UOM) of each (EA). The product has an ECCN classification of EAR99, suitable for various international markets.
For detailed technical specifications, download the datasheet.
Product Features
Analog output
Small package size: 3.76 x 2.95 x 1.10 mm
Reflow solder compatible
Omnidirectional directivity
Electrical Specifications
Parameter
Conditions/Description
Min
Typ
Max
Units
Directivity
Omnidirectional
Sensitivity (S)
at 94 dB SPL, 1 kHz
-39
-38
-37
dB
Supply Voltage (V DD)
1.6
2.0
3.6
V
Current Consumption (I DSS)
V DD = 2.0 V
160
µA
Sensitivity Reduction
V DD = 3.6 ~ 1.6 V
-0.5
dB
Frequency Response
100
10,000
Hz
Signal to Noise Ratio (S/N)
at 94 dB SPL, 1 kHz (A-weighted)
57
dBA
Total Harmonic Distortion (THD)
at 94 dB SPL, 1 kHz
0.2
%
Acoustic Overload Point (AOP)
at 10% THD, 1 kHz
125
dB SPL
Output Impedance (Zout)
at 1 kHz
300
Ω
Environmental & Mechanical Details
Operating Temperature: -40°C to 105°C
Storage Temperature (in packaging): -40°C to 85°C
Dimensions: 3.76 x 2.95 x 1.10 mm
Weight: 0.024 g
Surface mount terminals with bottom acoustic port
Mechanical Drawing & PCB Layout
For detailed mechanical drawings and recommended PCB footprint, refer to the 3D Model and PCB Footprint.
Soldering & Packaging
Reflow soldering temperature: up to 260°C with recommended profile
{"id":10026098458941,"title":"CMM-3729AB-38116-TR","handle":"cmm-3729ab-38116-tr","description":"\u003ch3\u003eMEMS Microphone - CMM-3729AB-38116-TR\u003c\/h3\u003e\n\u003cp\u003eEnhance your audio sensing applications with the \u003cstrong\u003eSAME SKY\u003c\/strong\u003e MEMS Microphone (Part Number: CMM-3729AB-38116-TR). This compact, surface-mount MEMS microphone is designed for high-performance audio capture in a small package, making it ideal for a wide range of electronic devices.\u003c\/p\u003e\n\u003cp\u003eManufactured in China, this MEMS microphone features RoHS compliance and is supplied in a reel packaging type, with a unit of measure (UOM) of each (EA). The product has an ECCN classification of EAR99, suitable for various international markets.\u003c\/p\u003e\n\u003cp\u003eFor detailed technical specifications, download the \u003ca href=\"https:\/\/www.cuidevices.com\/product\/resource\/masterpdf\/cmm-3729ab-38116-tr.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog output\u003c\/li\u003e\n\u003cli\u003eSmall package size: 3.76 x 2.95 x 1.10 mm\u003c\/li\u003e\n\u003cli\u003eReflow solder compatible\u003c\/li\u003e\n\u003cli\u003eOmnidirectional directivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eConditions\/Description\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTyp\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eUnits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirectivity\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eOmnidirectional\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity (S)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e-39\u003c\/td\u003e\n\u003ctd\u003e-38\u003c\/td\u003e\n\u003ctd\u003e-37\u003c\/td\u003e\n\u003ctd\u003edB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (V DD)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption (I DSS)\u003c\/td\u003e\n\u003ctd\u003eV DD = 2.0 V\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eµA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Reduction\u003c\/td\u003e\n\u003ctd\u003eV DD = 3.6 ~ 1.6 V\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.5\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e10,000\u003c\/td\u003e\n\u003ctd\u003eHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise Ratio (S\/N)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz (A-weighted)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edBA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion (THD)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcoustic Overload Point (AOP)\u003c\/td\u003e\n\u003ctd\u003eat 10% THD, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edB SPL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance (Zout)\u003c\/td\u003e\n\u003ctd\u003eat 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEnvironmental \u0026amp; Mechanical Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temperature: -40°C to 105°C\u003c\/li\u003e\n\u003cli\u003eStorage Temperature (in packaging): -40°C to 85°C\u003c\/li\u003e\n\u003cli\u003eDimensions: 3.76 x 2.95 x 1.10 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.024 g\u003c\/li\u003e\n\u003cli\u003eSurface mount terminals with bottom acoustic port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Drawing \u0026amp; PCB Layout\u003c\/h3\u003e\n\u003cp\u003eFor detailed mechanical drawings and recommended PCB footprint, refer to the \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-3dmodel\u0026amp;label=CMM-3729AB-38116-TR.pdf\u0026amp;path=%2fproduct%2fresource%2f3dmodel%2fcmm-3729ab-38116-tr\" target=\"_blank\"\u003e3D Model\u003c\/a\u003e and \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-pcbfootprint\u0026amp;label=CMM-3729AB-38116-TR.pdf\u0026amp;path=%2fproduct%2fresource%2fpcbfootprint%2fcmm-3729ab-38116-tr\" target=\"_blank\"\u003ePCB Footprint\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eSoldering \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReflow soldering temperature: up to 260°C with recommended profile\u003c\/li\u003e\n\u003cli\u003eReel packaging: Ø170 mm, 1,000 pcs per reel\u003c\/li\u003e\n\u003cli\u003eStorage conditions: \u0026lt;75% humidity, -40°C to 85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more information, visit the \u003ca href=\"https:\/\/www.sameskydevices.com\/\" target=\"_blank\"\u003eproduct page\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed. Please search the internet for the part number CMM-3729AB-38116-TR for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-15T01:14:54+05:30","created_at":"2025-08-15T01:14:55+05:30","vendor":"Waldom Electonics","type":"Sensors\/Transducers","tags":["2Vdc","95mm","IMPORT_CSV","MEMS","SAME","Sensors","Transducers","WLDM"],"price":10949,"price_min":10949,"price_max":10949,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50621270131005,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"CMM-3729AB-38116-TR","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"CMM-3729AB-38116-TR","public_title":null,"options":["Default Title"],"price":10949,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"CMM-3729AB-38116-TR","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/CMM-3729AB-38116-TR_52143221_2e770466.jpg?v=1755200695"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMM-3729AB-38116-TR_52143221_2e770466.jpg?v=1755200695","options":["Title"],"media":[{"alt":null,"id":45844015120701,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMM-3729AB-38116-TR_52143221_2e770466.jpg?v=1755200695"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/CMM-3729AB-38116-TR_52143221_2e770466.jpg?v=1755200695","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eMEMS Microphone - CMM-3729AB-38116-TR\u003c\/h3\u003e\n\u003cp\u003eEnhance your audio sensing applications with the \u003cstrong\u003eSAME SKY\u003c\/strong\u003e MEMS Microphone (Part Number: CMM-3729AB-38116-TR). This compact, surface-mount MEMS microphone is designed for high-performance audio capture in a small package, making it ideal for a wide range of electronic devices.\u003c\/p\u003e\n\u003cp\u003eManufactured in China, this MEMS microphone features RoHS compliance and is supplied in a reel packaging type, with a unit of measure (UOM) of each (EA). The product has an ECCN classification of EAR99, suitable for various international markets.\u003c\/p\u003e\n\u003cp\u003eFor detailed technical specifications, download the \u003ca href=\"https:\/\/www.cuidevices.com\/product\/resource\/masterpdf\/cmm-3729ab-38116-tr.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAnalog output\u003c\/li\u003e\n\u003cli\u003eSmall package size: 3.76 x 2.95 x 1.10 mm\u003c\/li\u003e\n\u003cli\u003eReflow solder compatible\u003c\/li\u003e\n\u003cli\u003eOmnidirectional directivity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eConditions\/Description\u003c\/th\u003e\n\u003cth\u003eMin\u003c\/th\u003e\n\u003cth\u003eTyp\u003c\/th\u003e\n\u003cth\u003eMax\u003c\/th\u003e\n\u003cth\u003eUnits\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDirectivity\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eOmnidirectional\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity (S)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e-39\u003c\/td\u003e\n\u003ctd\u003e-38\u003c\/td\u003e\n\u003ctd\u003e-37\u003c\/td\u003e\n\u003ctd\u003edB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupply Voltage (V DD)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e1.6\u003c\/td\u003e\n\u003ctd\u003e2.0\u003c\/td\u003e\n\u003ctd\u003e3.6\u003c\/td\u003e\n\u003ctd\u003eV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Consumption (I DSS)\u003c\/td\u003e\n\u003ctd\u003eV DD = 2.0 V\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e160\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eµA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSensitivity Reduction\u003c\/td\u003e\n\u003ctd\u003eV DD = 3.6 ~ 1.6 V\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e-0.5\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Response\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e10,000\u003c\/td\u003e\n\u003ctd\u003eHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSignal to Noise Ratio (S\/N)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz (A-weighted)\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e57\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edBA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Harmonic Distortion (THD)\u003c\/td\u003e\n\u003ctd\u003eat 94 dB SPL, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e0.2\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAcoustic Overload Point (AOP)\u003c\/td\u003e\n\u003ctd\u003eat 10% THD, 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e125\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003edB SPL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Impedance (Zout)\u003c\/td\u003e\n\u003ctd\u003eat 1 kHz\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003eΩ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eEnvironmental \u0026amp; Mechanical Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOperating Temperature: -40°C to 105°C\u003c\/li\u003e\n\u003cli\u003eStorage Temperature (in packaging): -40°C to 85°C\u003c\/li\u003e\n\u003cli\u003eDimensions: 3.76 x 2.95 x 1.10 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.024 g\u003c\/li\u003e\n\u003cli\u003eSurface mount terminals with bottom acoustic port\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMechanical Drawing \u0026amp; PCB Layout\u003c\/h3\u003e\n\u003cp\u003eFor detailed mechanical drawings and recommended PCB footprint, refer to the \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-3dmodel\u0026amp;label=CMM-3729AB-38116-TR.pdf\u0026amp;path=%2fproduct%2fresource%2f3dmodel%2fcmm-3729ab-38116-tr\" target=\"_blank\"\u003e3D Model\u003c\/a\u003e and \u003ca href=\"https:\/\/www.sameskydevices.com\/track?actionLabel=Datasheet-ClickThrough-pcbfootprint\u0026amp;label=CMM-3729AB-38116-TR.pdf\u0026amp;path=%2fproduct%2fresource%2fpcbfootprint%2fcmm-3729ab-38116-tr\" target=\"_blank\"\u003ePCB Footprint\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eSoldering \u0026amp; Packaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eReflow soldering temperature: up to 260°C with recommended profile\u003c\/li\u003e\n\u003cli\u003eReel packaging: Ø170 mm, 1,000 pcs per reel\u003c\/li\u003e\n\u003cli\u003eStorage conditions: \u0026lt;75% humidity, -40°C to 85°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more information, visit the \u003ca href=\"https:\/\/www.sameskydevices.com\/\" target=\"_blank\"\u003eproduct page\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed. Please search the internet for the part number CMM-3729AB-38116-TR for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}
