Ultra-Compact Analog MEMS Microphone – High Sensitivity & Low Power

Name: Ultra-Compact Analog MEMS Microphone – High Sensitivity & Low Power - ECMIC
SKU: ECM-M2718-4256M
Price: 0.55 USD
Availability: InStock

application scenarios for action cameras

Ultra-compact analog MEMS microphone with -42dBV/Pa sensitivity, 56dB SNR, and 130dB AOP. Tiny 2.75×1.85×0.95mm package ideal for wearables, cameras, and portable electronics.

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🧪 Sample

Standard model free
Shipping cost applies

🧭 Trial Order

From 200 pcs
Test before full order

📦 MOQ

3,000 pcs
Full order minimum

Model: ECM-M2718-4256M
Dimensions: 2.75 × 1.85 × 0.95 mm
Directivity: Omnidirectional
Sensitivity: -42 dB ± 3
Impedance: 300 Ω
S/N Ratio: 56 dB
Max SPL: 130 dB
Operating Voltage: 2.1 Vdc
Frequency Response: 100 Hz ~ 10 kHz
Current Consumption: 250 μA

Tags: Analog High AOP MEMS Mics RF Immunity Ultra-Compact

Technical Specifications

The ECM-M2718-4256M is an ultra-compact analog MEMS microphone designed for space-constrained consumer electronics. With sensitivity of -42dBV/Pa ±3dB and 56dB SNR, it delivers reliable audio capture in a tiny form factor. Its 130dB SPL acoustic overload point ensures distortion-free recording even in high-volume environments. Operating voltage ranges from 1.5V to 3.6V, making it ideal for battery-powered devices. The microphone features robust ESD protection (±8kV contact) and excellent RF immunity for reliable performance in challenging environments. Measuring just 2.75mm x 1.85mm x 0.95mm, it is one of the smallest MEMS microphones available, perfect for wearables, cameras, and portable electronics.

Application Scenarios

Wearable Devices: Its ultra-compact size and low power consumption make it ideal for smartwatches, fitness trackers, and other wearable devices.
Cameras: Suitable for security cameras, action cameras, and other devices requiring clear audio in noisy environments.
Portable Electronics: Its high sensitivity and RF immunity make it perfect for smartphones, tablets, and other portable devices.

Recommended Interface Circuit

Standard Test Circuit

Frequency Response Curve

Typical Frequency Response

Dimensions (UNIT: mm)

Appearance Dimension

Packaging Overview

Use ESD-safe reel and carrier tape for packing.
Quantity per reel: 5,000 pcs.
Each reel is sealed in a moisture-proof, anti-static bag.
Strict anti-static procedures are followed during the packing process.
Label includes model number, quantity, lot number, and manufacturing date.

Reliability Tests

Thermal Shock: 100 cycles of air-air thermal shock from -40℃ to +100℃ with 15-minute soaks.

High Temperature Bias: +125℃ environment while under bias for 1000 hours.

Low Temperature Bias: -40℃ environment while under bias for 1000 hours.

Temperature/Humidity Bias: +85℃/85% relative humidity environment while under bias for 1000 hours.

Mechanical Shock: 3 pulses of 10,000g in the X, Y, and Z directions.

Vibration Test: 10～60Hz: 0.35mm; 60～500Hz: 5g, 1 octave/min, Duration: 15 minutes per plane.

Drop Test: 1.5-meter height onto a concrete surface in three directions while in packaging.

Reflow: 5 reflow cycles with a peak temperature of +260℃.

ESD Protection: 150pF, 330Ohm, contact discharge ±2KV/air discharge ±4KV, 10 times, applying voltage to I/O pins.

Sampling Process

Confirm customer requirements:

Review product application, microphone capsule specifications, usage scenarios, and sound quality needs.

Recommend and specify:

Provide recommended microphone capsule models and detailed specifications for customer evaluation.

Sample provision and testing:

Deliver microphone samples for customer testing and feedback purposes.

Optimize and finalize:

Refine microphone design based on feedback, finalize samples, and proceed to mass production upon quality approval.

Quality Assurance

Conducting sampling inspections of incoming materials to ensure compliance with standard requirements.

Performing inspection audits to ensure the stability and control of the entire manufacturing process.

Conducting pre-shipment inspections to ensure that products meet established quality standards.

Acoustic Laboratory

Testing of background noise, sensitivity, frequency response curve, and directionality indicators.

Verification of the impact of different circuits, structural dimensions, materials, and processes on indicators.

Reliability testing at both the new product design stage and the mass production regular stage.

Automatic Workshop

Utilizing fully automated production lines to ensure high efficiency and consistency.

Equipped with state-of-the-art facilities, including a 10,000-level dust-free workshop.

Employing a rigorous 21-step process to guarantee product stability.