CMM-2718AB-3815NC-TR

$1.26

Description：MIC MEMS ANALOG OMNI -38DB
Series：CMM
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:75b1cbd25455 Category: Microphones Brand: Same Sky (Formerly CUI Devices)

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Product introduction

Product Detailed Parameters

Description：MIC MEMS ANALOG OMNI -38DB
Series：CMM
Mfr：Same Sky (Formerly CUI Devices)
Package：Tape & Reel (TR),Cut Tape (CT)
Type：MEMS (Silicon)
Output Type：Analog
Direction：Omnidirectional
Frequency Range：20 Hz ~ 10 kHz
Sensitivity：-38dB ±1dB
S/N Ratio：62dB
Impedance：200 Ohms
Voltage Range：1.5 V ~ 3.6 V
Current - Supply：170 µA
Port Location：Bottom
Ratings：-
Termination：Solder Pads
Size / Dimension：0.108" L x 0.073" W (2.75mm x 1.85mm)
Height (Max)：0.035" (0.90mm)
Shape：Rectangular
Grade：-
Qualification：-
Voltage - Rated：1.8 V

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CMM-2718AB-3815NC-TR

Overview

The CMM-2718AB-3815NC-TR is an analog MEMS microphone manufactured by Same Sky. It features an omnidirectional polar pattern with a bottom port configuration for surface-mount assembly. The device operates within a voltage range of 1.6 V to 3.6 V, typically at 1.8 V, and draws a supply current of 150 µA. Key electrical specifications include a sensitivity of -38 dB ±1 dB and a signal-to-noise ratio (SNR) of 62 dBA. The frequency response spans from 20 Hz to 10 kHz. The component measures 2.75 mm in length, 1.85 mm in width, and has a maximum height of 0.90 mm.

Feature Summary

Omnidirectional acoustic directivity suitable for general sound capture
Bottom port design facilitates effective noise cancellation integration
Low power consumption optimized for battery-operated portable devices

Applications

Noise canceling systems
Portable consumer electronics
Voice recognition modules

Procurement Notes

Verify the specific suffix NC against the manufacturer's latest datasheet to confirm exact sensitivity tolerance and RoHS compliance status. Ensure the ordering part number matches the required tape and reel packaging format. Cross-reference the Mouser or DigiKey part numbers to validate current availability and manufacturing lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when a compact footprint and low standby current are critical constraints. The bottom port architecture is specifically advantageous for applications requiring precise acoustic filtering or noise reduction capabilities. Verify that the operating voltage aligns with the system's power rail and that the analog output interface is compatible with the target ADC or amplifier input stage.

Part Context

This model belongs to the Same Sky CMM series of MEMS microphones. The series offers various form factors and electrical characteristics to support diverse audio sensing requirements. The CMM-2718 variant specifically denotes the 2.75mm x 1.85mm package size, distinguishing it from larger or smaller counterparts within the broader product family.

Replacement Considerations

CMM-2718AB-383161-TR is listed as a manufacturer-recommended substitute. Verify compatibility regarding sensitivity tolerance and physical dimensions before implementation.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.