The ECM-B9750UL-SBN-44 is a 9.7 × 5 mm unidirectional microphone capsule, suitable for headsets, lapel microphones, and similar applications. It features a sensitivity of -44dB±3 and a signal-to-noise ratio of 58dB, ensuring clear and focused audio capture.
Free (std. models) + shipping
From 200 pcs (1st order only)
5,000 pcs (mixed models allowed)
Our 9750 unidirectional pickup microphone capsule provides high sensitivity and superior sound quality with noise reduction, anti-noise, and anti-interference features.
Test conditions: Load resistor (RL) = 680Ω, Supply voltage (VS) = 1.5V, Coupling capacitor (C) = 1μF.
The frequency response ranges from 100Hz to 16kHz. It exhibits a noticeable low-frequency gain for full-bodied voice capture, a smooth midrange boost, and a gentle roll-off near 10kHz—ideal for minimizing sibilance and background noise.
Diameter: 9.7mm; Height: 5.0mm. Front features dustproof mesh; back includes a sound port.
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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