14mm Unidirectional Electret Condenser Microphone Element for High Fidelity

Unidirectional Electret Condenser Microphone Element for High Fidelity 14mm

The ECM-B1465UL42-231165 is a 14 × 6.5 mm microphone capsule crafted for professional audio needs. With a sensitivity of -42dB±2 and a signal-to-noise ratio of 73dB, it delivers clear and detailed sound across frequencies. Its unidirectional pattern isolates sound sources effectively. Ideal for studios, live events, and broadcasting, it ensures top-notch audio quality in professional settings.

🚫 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-B1465UL42-231165
Dimensions: 14 × 6.5 mm
Directivity: Unidirectional
Sensitivity: -42dB±2
Impedance: 1KΩ
S/N Ratio: 73dB
Max SPL: 115dB
Operating Voltage: 4.5Vdc
Frequency Response: 100Hz~16KHz

Tags: 14mm Electret 3-Pad Electret Vocal Mics

Technical Specifications

Our 1465 unidirectional microphone head, specifically designed for vocal applications, undergoes rigorous testing, including a 12-hour aging process at 80°C, 1-meter drop tests, and salt spray and humidity trials. This ensures consistent quality and reliability even under the most demanding conditions.

Standard Test Circuit

ECM-B1465UL42 Test Circuit: 6.8kΩ bias, 4.5V supply, 1μF output

6.8kΩ bias resistor, 4.5V DC supply, 1μF output capacitor. Unidirectional microphone with Source-output configuration.

Typical Frequency Response

ECM-B1465UL42 Frequency Response: Gradual 50Hz-8kHz rise with high-frequency attenuation

Gradual low-to-mid frequency rise (50Hz-8kHz) with smooth high-end roll-off

Dimensions (Unit: mm)

ECM-B1465UL42 Dimensions: Φ14×6.5mm unidirectional capsule with dual ports

Professional Φ14×6.5mm unidirectional capsule with front dust mesh and rear sound inlet.

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.