Dynamic Handheld KTV Microphone Capsule 19mm

Optimized for boom microphones, this 19mm unidirectional dynamic microphone capsule delivers clear, natural vocal pickup with a 100Hz–10kHz frequency response and 600Ω impedance—ideal for broadcast, communication, and hands-free applications.

Model: ECM-DM1910K150
Dimensions: 19.1 × 10 mm
Weight: 3.65 g
Directivity: Unidirectional
Sensitivity: -61 dB ± 3
Impedance: 150 Ω
Frequency Response: 100 Hz ~ 7000 Hz

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 ECM-DM1910K150 dynamic microphone capsule is built for stable and natural vocal pickup, with a frequency response of 100Hz to 7kHz optimized for speech clarity in handheld and headset applications. Its unidirectional pattern effectively reduces ambient noise, focusing on the speaker’s voice.

With a 150Ω output impedance and compact 19.1 × 10 mm structure, this capsule integrates easily into KTV microphones, intercom headsets, and aviation-style communication devices. It offers consistent performance and durability for everyday use in entertainment and industrial environments.

Whether used in handheld microphones for public use or in hands-free systems for professional communication, the ECM-DM1910K150 delivers reliable voice clarity with minimal feedback and strong background rejection.

Exploded View & Parts List

Dynamic Part

Parts List: Sponge, Cover, Diaphragm, Coil, Magnetic Steel, Iron Pot, Holder, PCB + Tin.

Frequency Response Curve

Response Curve

Frequency Response: 100Hz–7kHz. Suitable for standard voice-range applications with stable mid-frequency performance.

Dimensions (UNIT: mm)

Appearance Size

Dimensions: Diameter: 19.1mm; Height: 10mm.

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.