The ECM-B4013AL38RC-SMD is a 4 × 1.3 mm SMD microphone suitable for TWS Bluetooth headsets, speakers, toys, and similar products. With omnidirectional directivity and a sensitivity of -38dB±3, it ensures clear sound capture.
Free sample – shipping extra
From 500 pcs (1st order only)
5,000 pcs (mixed models allowed)
The 4013 surface-mount microphone head features high-temperature resistance and interference resistance, thanks to its SMD (Surface Mount Device) microphone core.
Test conditions: RL=2.2kΩ, VS=2V, C1=10pF, R1=330Ω.
Frequency response is flat from 50Hz to around 3kHz, with a gradual decline starting at 3kHz up to 16kHz.
Compact SMD electret microphone measuring 4mm in diameter and 1.3mm in height.
Our production meets ISO 9001:2015 and ISO 14001:2015 standards and is tailored for automotive applications under the IATF 16949:2016 standard, ensuring comprehensive quality management. Additionally, our products comply with ROHS, CE, and FCC requirements.
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.
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.
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.
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