
Omni-Directional Electret Mic Core
Combining advanced design with cutting-edge technology, the ECM-B4015AL39-L40D offers exceptional omni-directional sound capture. Its small form factor and 40mm lead length provide flexibility for integration into custom applications while maintaining high-quality sound reproduction. The microphone core's sensitivity of -39±3dB, wide frequency range from 50Hz to 20KHz, and the ability to handle sound pressures up to 115dB ensure clarity and reliability in dynamic environments.
Features
- Omni-Directional Sound Capture: Captures consistent audio from all directions, ensuring balanced and natural sound across different environments.
- High Sensitivity: With a sensitivity of -39±3dB, it provides clear audio, even in low-volume or subtle sound environments.
- Wide Frequency Range: Operates from 50Hz to 20KHz, delivering a full spectrum of audio to meet varied application needs.
- Compact and Efficient Design: The 4 × 1.5mm size fits easily into tight spaces, perfect for space-constrained designs.
- High SPL Tolerance: Can withstand up to 115dB SPL, making it suitable for high-volume or fluctuating sound levels.
- Wire Soldering with 40mm Lead Length: Optimized for easy soldering with a lead length that allows flexible integration into diverse systems.
Applications


specifications
Name | Parameter |
Sensitivity |
-39±3dB |
Output impedance |
2.2kΩ |
Directivity | Omnidirectional |
Frequency range | 50-20KHz |
Maximum SPL |
115dB |
S/N Ratio |
61dB |
Dimensions | 4 x 1.5mm |
![]() |
![]() |
![]() |
Why Choose Us
With extensive experience in the microphone component industry, we specialize in creating high-quality, durable, and precise microphone solutions. The ECM-B4015AL39-L40D is designed for performance and reliability, ensuring that your custom systems achieve top-tier audio quality. We combine cutting-edge technology with expert manufacturing processes to offer consistent, adaptable solutions for a wide range of audio applications. Choose us for quality, precision, and exceptional customer support that meets your unique needs.
You Might Also Like
Send Inquiry