9.7mm Omnidirectional Electret Microphone Cartridge for Parabolic Microphone

Omnidirectional Electret Microphone Cartridge for Parabolic Microphone 9.7mm

High-sensitivity 9.7mm omnidirectional microphone capsule (-26dB, 82dB S/N), ideal for long-distance sound capture in professional applications.

🚫 Factory direct sales only – no retail.
Minimum order quantities (MOQs) apply.
Suitable for brand owners and manufacturers only.
📞 Please contact us to discuss your project and order details.

🧪 Sample

Free sample – shipping extra

🧭 Trial Order

From 500 pcs (1st order only)

📦 MOQ

5,000 pcs (mixed models allowed)

Model: ECM-B9750AL26-062
Dimensions: 9.7 × 5 mm
Directivity: Omnidirectional
Sensitivity: -26dB±2
Impedance: 2.2KΩ
S/N Ratio: 82dB
Max SPL: 110dB
Operating Voltage: 2Vdc
Frequency Response: 50Hz~16KHz

Tags: 9.7mm Electret Equipment Mics High-SNR Mics Solder Pads Electret

Technical Specifications

The ECM-B9750AL26-062 is a 9.7mm omnidirectional microphone capsule, featuring exceptional -26dB sensitivity and an 82dB signal-to-noise ratio. Designed for high-performance applications, it ensures clear and precise audio even in demanding environments, making it ideal for long-distance sound pickup.

Crafted with a custom Panasonic mic core, this capsule offers stable and consistent performance, with a wide frequency range of 50Hz to 16KHz. Its robust design makes it suitable for a variety of professional uses, including surveillance systems, broadcasting equipment, and high-quality recording devices.

For a pre-attached lead version, explore the 15mm lead model.

Standard Test Circuit

ECM-B9750AL26-062 Standard Test Circuit: 2.2kΩ bias, 2V supply, 1μF output

Tested with 2.2kΩ bias resistor, 2V DC supply, and 1μF coupling capacitor.

Typical Frequency Response

ECM-B9750AL26-062 Frequency Response Curve

Frequency response is smooth from 50Hz to 3kHz, followed by a significant roll-off up to 20kHz.

Dimensions (UNIT: mm)

Dimensions of ECM-B9750AL26-062: Φ9.7×5.0mm

Compact capsule measuring Φ9.7 × 5.0mm with front-facing dustproof mesh and sealed back design.

Packaging Overview

Standard packaging: 100 pcs per small box.
10 small boxes (1,000 pcs) are combined into one medium carton.
Several medium cartons are further packed into a large outer carton.
Pin-type microphones are protected with foam inside the small box.
Other types are packed directly or sealed in anti-static bags.

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.