6mm Figure-8 Mic Capsule for High-Noise Noise Cancelling

6 × 2.7 mm bidirectional Figure-8 microphone capsule for high-noise noise-cancelling headsets. Offers -48dB ±3 sensitivity and 60dB SNR, with a rising frequency response that enhances vocal clarity while suppressing ambient noise.

Model: ECM-F6027NL48-SD1033
Dimensions: 6 × 2.7 mm
Directivity: Bidirectional
Sensitivity: -48 dB ± 3
Impedance: 2.2 kΩ
S/N Ratio: 60 dB
Max SPL: 110 dB
Operating Voltage: 2 Vdc
Frequency Response: 100 Hz ~ 16 kHz

Request Information / Sample

Tell us your project stage. Our engineering team will respond accordingly.

Lead Time

Samples: 1–3 weeks
Mass production: 2–4 weeks

Customization

Application-based engineering support
Structure / sensitivity / acoustic tuning

MOQ

3,000 pcs
Per model / per production batch

Certification

RoHS & UL compliant
Industrial reliability assured

Technical Specifications

The ECM-F6027NL48-SD1033 is a 6 × 2.7 mm bidirectional Figure-8 microphone capsule designed for high-noise noise-cancelling headsets and voice communication in challenging environments. With -48dB±3 sensitivity and a 60dB signal-to-noise ratio, it provides clear and consistent audio while rejecting ambient noise.

Its bidirectional pickup structure and rising frequency response enhance vocal clarity while suppressing environmental noise, making it ideal for noise-cancelling headset microphones used in high-noise environments.

Standard Test Circuit

Test conditions: Load resistor (RL) = 2.2kΩ, Supply voltage (VS) = 2V, Coupling capacitor (C) = 1μF.

Typical Frequency Response

The frequency response spans 100Hz to 16kHz. The curve shows an initial dip in the low end, reaching a minimum around 150Hz, followed by a steady and prominent rise, peaking near 13kHz before gradually rolling off. This rising response enhances vocal clarity while suppressing ambient noise, making it suitable for outdoor noise-cancelling headset applications.

Dimensions (UNIT: mm)

Appearance Dimension

Diameter: 6.0mm; Height: 2.7mm. The front face includes a dustproof mesh, while the rear features a sound port. This model uses a bidirectional pickup structure, ideal for capturing voice while rejecting environmental noise from other directions.

Reliability Tests

High Temperature Test: Microphone subjected to +80℃ for 100 hours, followed by 3 hours at room temperature.

Low Temperature Test: Microphone subjected to -40℃ for 100 hours, followed by 3 hours at room temperature.

Humidity & Heat Test: Microphone exposed to +55℃ and 85% relative humidity for 100 hours, followed by 3 hours at room temperature.

Thermal Shocking Test: Microphone subjected to [+80℃ 0.5H → room temp 1H → -40℃ 0.5H → room temp 1H] for 10 cycles, then exposed to room temperature for 3 hours.

Vibration Test: Microphone subjected to two hours of vibration in x, y, and z directions with frequencies of 10-55Hz and a 1.52mm amplitude.

Drop Test: Microphone dropped 5 times from a height of 1.0 meter onto a slippery marble floor, without packaging, and still performs normally.

Storage and Operating Temperature Range: Suitable for environments ranging from -35℃ to +60℃.

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.