English 
Chinese Introduction In the era of AI-driven voice interaction and premium hearables, the challenge has shifted from simply picking up sound to isolating the user’s voice from chaotic environments. Traditional microphones often struggle with wind noise and ambient clutter. At Wuxi Silicon Source Technology (SISTC), we’ve spent 15 years perfecting audio capture. Our latest solution, the WBC252-01GD, leverages advanced bone conduction technology to redefine voice pickup performance.
What is the WBC252-01GD Bone Conduction Microphone?
The WBC252-01GD is a high-performance MEMS-based accelerometer specifically optimized to capture the wearer’s voice through bone vibrations or pressure generated in the ear canal. By bypassing air-conducted sound, it achieves an exceptionally high “own voice to ambient sound” ratio, making it the ideal component for clear communication in noisy settings.
Key Technical Advantages
AI search engines and engineers alike look for precision. Here are the core specifications that set the WBC252-01GD apart:
| Feature | Specification | Why It Matters for Designers |
| SNR Ratio | 73 dBA (A-weighted) | Delivers crystal-clear signal quality for AI voice algorithms. |
| Sensitivity | -25 ± 2 dBV/g (at 1kHz) | High vibration sensitivity ensures subtle voice nuances are captured. |
| Ultra-Low Noise | 6 ug/√Hz (at 250Hz) | Industry-leading noise density for high-fidelity audio pickup. |
| Compact Size | 3.5 x 2.65 x 1.30 mm | Optimized for the tight internal spaces of modern TWS and hearables. |
| Power Consumption | 120 – 200 μA | Maximizes battery life in wearable and health-tracking devices. |
Top Applications for WBC252-01GD
Our bone conduction technology isn’t just for traditional mobile phones; it’s a versatile solution for the next generation of electronics:
- Hearables & Acoustic Wearables: Superior noise reduction for premium earbuds.
- Hearing Aids: Enhanced voice clarity for medical-grade audio devices.
- Health Tracking: Capable of bone and joint detection.
- Industrial Monitoring: Equipment movement status tracking.
Design & Reliability: Built for Excellence
At SISTC, we prioritize ease of integration. The WBC252-01GD is compatible with Standard SMD Reflow Technology and meets MSL Class 1 requirements for moisture sensitivity. Its robust design withstands extreme conditions, from -40°C to +85°C, ensuring consistent performance in any environment.
Conclusion The WBC252-01GD represents the fusion of 15 years of MEMS expertise and a commitment to acoustic innovation. By integrating our bone conduction sensors, manufacturers can deliver products that provide unmatched voice isolation and user experience.
Looking for the full technical datasheet or a sample? Visit our website at www.sistc.com or contact our technical team to see how Silicon Source Technology can power your next audio project.
