14.5mm Waterproof Unidirectional Dynamic Microphone Capsule

ECM-DMP1458T200 waterproof unidirectional dynamic microphone capsule

ECM-DMP1458T200 microphone capsule features: waterproof design, 14.5mm size, unidirectional pickup, noise-reduction structure

ECM-DMP1458T200 microphone capsule dimensions diagram and frequency response curve (100Hz–9kHz)

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

Compact waterproof 14.5mm unidirectional dynamic microphone capsule designed for aviation headsets, intercoms, two-way radio speaker microphones, and dynamic gooseneck intercom microphones—delivering clear, reliable voice pickup in noisy and harsh environments.

🚫 Factory direct sales only – no retail.
Minimum order quantities (MOQs) apply.
For intercom & headset makers
📞 Contact us for orders & inquiries.

🧪 Sample

Free (std. models) + shipping

🧭 Trial Order

From 200 pcs (1st order only)

📦 MOQ

3,000 pcs (mixed models allowed)

Model: ECM-DMP1458T200
Dimensions: 14.5 × 7.5 mm
Weight: 2.85 g
Directivity: Unidirectional
Sensitivity: -65 dB ± 3
Impedance: 150 Ω, 200 Ω, 250 Ω, 600 Ω
Frequency Response: 100 Hz ~ 9000 Hz

Tags: 15mm Dynamic Vocal Mics

Technical Specifications

The ECM-DMP1458T200 is an upgraded waterproof version of our 14.5mm dynamic microphone capsule, engineered for aviation headsets, intercom systems, and rugged communication devices. It features a unidirectional pickup pattern paired with a tuned frequency response optimized for speech clarity between 100Hz and 9kHz. This design enhances voice intelligibility while effectively reducing ambient noise, ensuring stable performance even in challenging environments.

Built with moisture-resistant components and a sealed housing structure, the ECM-DMP1458T200 provides reliable waterproof performance. With selectable impedance options from 150Ω to 600Ω, its compact 14.5 × 7.5 mm form factor integrates easily into a wide range of communication equipment requiring durability, stability, and clear voice transmission.

Exploded View & Parts List

ECM-DMP1458T200 Exploded View: 8 key components including diaphragm, voice coil, and magnet assembly

Structural decomposition showing waterproof sponge, protective cover, diaphragm, coil, magnetic steel, iron pots, holder, and PCB assembly.

Frequency Response Curve

ECM-DMP1458T200 Frequency Response: primarily focused within the 100Hz to 9kHz range

Frequency response focused within the 100Hz to 9kHz range for optimized speech clarity.

Dimensions (UNIT: mm)

ECM-DMP1458T200 Dimensions: Φ14.5×7.5mm compact dynamic microphone capsule

Compact Φ14.5×7.5mm waterproof housing design.

Reliability Tests

High Temperature Test: Microphone subjected to +60℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Low Temperature Test: Microphone subjected to -25℃ ±3℃ for 96 hours with 20-50% humidity, followed by 6 hours of normal temperature lay.

Humidity Test: Microphone exposed to 40℃ and 90-95% relative humidity for 96 hours, followed by 6 hours of normal temperature lay.

Temperature Cycle Test: Microphone subjected to rapid temperature changes from normal temperature to +60℃ ±3℃ for 1 hour (normal temperature lay for 3 hours) and then to -25℃ ±3℃ for 1 hour (normal temperature lay for 3 hours).

Sensitivity Stability: Sensitivity remains within ±3dB of the initial sensitivity after each environmental test.

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.