WBC6556: High-Performance, Low-Power MEMS Microphone Engineered for Hearing Aids with Superior EMI Resistance and Compact Design

The WBC6556 is a cutting-edge MEMS microphone tailored for hearing aid applications. Featuring a high signal-to-noise ratio (64dBA), ultra-low power consumption (26µA), and a flat wideband frequency response, it delivers superior sound clarity and natural audio. Its built-in EMI filter ensures outstanding RF noise immunity, while the compact 2.75mm × 1.85mm × 0.90mm surface-mount package is reflow solder compatible for seamless integration. The WBC6556 is halogen-free, lead-free, and rigorously tested for reliability, offering excellent durability even in extreme environmental conditions. Designed to meet the specific demands of hearing aids, this microphone guarantees precision, stability, and robust performance.

Key Features of the WBC6556 MEMS Microphone

• Optimized for Hearing Aids: Specially designed to enhance auditory experiences with high intelligibility and natural sound output.
• High Signal-to-Noise Ratio (64dBA): Ensures minimal background noise, delivering crisp and clear sound.
• Low Power Consumption: Operates at just 26µA, maximizing battery efficiency in compact hearing aids.
• Wideband Flat Frequency Response: Delivers consistent performance across the entire frequency range.
• Built-in EMI Filter: Provides superior RF noise attenuation for stable operation in high-interference environments.
• Compact Design: A miniature 2.75mm × 1.85mm × 0.90mm package allows for seamless integration into space-constrained hearing aid designs.

Reliability and Durability

The WBC6556 is rigorously tested under extreme conditions to ensure long-term durability:

• Wide Temperature Range: Operates reliably between -40°C and +125°C.
• Thermal Shock Resistance: Withstands -40°C to +125°C cycling to ensure robustness.
• Vibration and Drop Resistance: Proven to endure 20G vibrations and 1.5m free-fall impacts without compromising performance.
• Electrostatic Discharge (ESD) Protection: Rated up to ±15kV air discharge and ±8kV contact discharge.

Environmental Safety

• Halogen- and Lead-Free: Complies with RoHS standards, making it environmentally friendly.
• Reflow Solder Compatible: Withstands up to 260°C peak temperature during multiple reflow cycles, ensuring reliable assembly.