Anti-Interference Electret Condenser Microphone Capsule with Korea RF Core

10mm electret condenser microphone capsule – EMI-resistant voice capture with Korea RF core

Microphone features – stable audio signal, EMI-resistant, Korea RF core – for reliable communication

Microphone circuit and dimensions – 10×4.5mm design, stable voltage, easy integration

Microphone frequency response – clear voice pickup in RF environments

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

9.7mm electret condenser microphone capsule equipped with a specialized Korea RF core, optimized for excellent electromagnetic interference (EMI) resistance. Features robust performance with 70dB SNR and 125dB SPL, ideal for electronics in RF-rich environments.

Model: ECM-B1045UBT-Y390-967-2
Dimensions: 10 × 4.5 mm
Directivity: Unidirectional
Sensitivity: -46 dB ± 3
Impedance: 1 kΩ
S/N Ratio: 70 dB
Max SPL: 125 dB
Operating Voltage: 5 Vdc
Frequency Response: 50 Hz ~ 20 kHz
Current Consumption: 500 μA

Tags: 10mm Electret

Overview

The ECM-B1045UBT-Y390-967-2 is a 9.7mm unidirectional electret condenser microphone capsule specifically engineered for reliable operation in electrically noisy environments. Incorporating a specialized Korea RF microphone core, it provides enhanced immunity to electromagnetic interference (EMI), ensuring stable and clear audio capture.

Key Features

🛡️ Superior Anti-Interference Design – Built with a Korea RF core specifically selected for excellent electromagnetic compatibility (EMC) performance.
📡 Optimized for RF Environments – Maintains clear audio quality in proximity to wireless transmitters, Bluetooth devices, and other RF sources.
🎤 High SPL Handling (125dB @ THD≤10%) – Robust enough for a wide range of sound pressure levels in real-world applications.
🔇 Good Signal-to-Noise Ratio (70dB A-weighted) – Provides clear voice pick-up suitable for communication and voice recognition.
🔋 Wide Operating Voltage Range (1.0–10.0V DC) – Versatile power compatibility for various electronic designs.
⚙️ Stable Low Impedance Output (≤1 kΩ) – Reliable signal integrity for consistent performance.

Technical Specifications

This capsule is tailored for durability and reliability, undergoing rigorous environmental tests to perform consistently where interference resistance is critical.

Parameter	Specification
Model	ECM-B1045UBT-Y390-967-2
Type	Electret Condenser Microphone Capsule
Directivity	Uni-Directional
Sensitivity	-46 ±3 dB (RL=5.6kΩ, Vs=5.0V)
Signal-to-Noise Ratio	70 dB (A-weighted, Typ.)
Maximum Input SPL	125 dB (THD ≤10%)
Impedance	≤1 kΩ
Standard Operating Voltage	5.0 V DC
Operating Voltage Range	1.0 – 10.0 V DC
Current Consumption	≤500 μA
Core Type	Korea RF (Anti-Interference)

Typical Applications

Wireless headsets and Bluetooth headphones
Hearing aids and assistive listening devices
Smart speakers and voice-controlled home assistants
Automotive hands-free calling and voice command systems
Industrial communication devices and two-way radios

Advantages

The ECM-B1045UBT-Y390-967-2 stands out for its exceptional resistance to electromagnetic interference, a common challenge in modern electronic devices. By prioritizing signal stability in noisy environments, it ensures reliable voice capture and clear communication, making it a robust and trustworthy component for any design where RF noise is a concern.

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.