16mm Cardioid Electret Microphone Element for Anchor

Name: 16mm Cardioid Electret Microphone Element for Anchor - ECMIC
SKU: ECM-B1655UL44-280
Price: 1.25 USD
Availability: InStock
Rating: 5.00 (1 reviews)

Cardioid Electret Microphone Element for Anchor 16mm

ECM-B1655UL44-280 microphone circuit diagram and dimensions, showing key components and size

ECM-B1655UL44-280 microphone frequency response chart, showing sensitivity and performance across the frequency range

ECMIC microphones 12,000 m² factory with 6M+ units monthly output and ISO/CE certifications

ECMIC microphones automated production line overview, showing assembly and quality control process

Rated 5.00 out of 5

(1 customer reviews)

The ECM-B1655UL44-280 is a unidirectional microphone capsule primarily designed for broadcaster microphone applications. With dimensions of 16 × 5.5 mm, it features a sensitivity of -44dB±2 and a signal-to-noise ratio of 75dB, ensuring high-quality sound capture.

Model: ECM-B1655UL44-280
Dimensions: 16 × 5.5 mm
Directivity: Unidirectional
Sensitivity: -44 dB ± 2
Impedance: 680 Ω
S/N Ratio: 75 dB
Max SPL: 110 dB
Operating Voltage: 1.5 Vdc
Frequency Response: 100 Hz ~ 16 kHz
Current Consumption: 500 μA

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 1655 single-directional condenser microphone head is tailored for broadcasters, boasting stable and reliable quality with a Korean JFET. Equipped with dual capacitors for anti-interference, it delivers high audio quality and signal-to-noise ratio, ensuring excellent sound reproduction for professional broadcasting applications.

Standard Test Circuit

Microphone test circuit diagram

Test configuration: RL=680Ω, VS=1.5V, C=1μF

Typical Frequency Response

Frequency response curve showing initial rise, mid-range dip, and high-frequency roll-off

Frequency response climbs steadily from 100Hz-6kHz to peak level, declines through 6-7kHz, briefly recovers at 7-8kHz before rolling off to 10kHz.

Dimensions (UNIT: mm)

Microphone dimensions drawing

Dimensions: 16mm diameter × 5.5mm height with front mesh and rear ports

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.