G50 Wireless Charging Coil Fast Charging Coil for Mobile Phone Charger Pad PCB Customizable
1.Product Description
G50 Wireless Charging Coil is a high-performance transmitting/receiving coil designed specifically for wireless charging of mobile devices. It adopts the classic 50mm outer diameter specification, compatible with the mainstream Qi wireless charging standard in the industry, and can support up to 15W fast charging, perfectly suitable for PCB design and integration of mobile phone charging boards, charging bases, embedded charging furniture and other products. The coil is made of high-quality copper wire and equipped with ferrite shielding sheets, effectively improving charging efficiency, reducing energy loss and heat generation. We provide highly customized services that can flexibly adjust coil turns, inductance values, lead lengths, and interface types according to your project needs, helping you quickly achieve product prototype development and mass production. It is an ideal solution for hardware engineers, brand owners, and DIY enthusiasts.
1. Classic and efficient size: Adopting the widely used 50mm (G50) standard outer diameter design in the industry, it achieves the best balance between charging area, conversion efficiency, and product aesthetics, making it an ideal choice for embedded charging and standard charging boards.
2. Supports fast charging: Compatible with the latest Qi standard, it can support up to 15W fast wireless charging, providing efficient and fast charging experience for most smartphones on the market that support fast charging.
3. Excellent electrical performance:
-High quality material: precision wound from high-purity copper wire, ensuring low DC resistance, reducing heat generation, and improving energy efficiency.
-Integrated magnetic shielding: Equipped with high-performance ferrite shielding sheets, it can effectively focus magnetic fields, reduce electromagnetic interference (EMI), prevent energy leakage, and enhance alignment freedom.
-High compatibility and reliability: Fully compatible with Qi v1.2/1.3 protocol, it can perfectly match mainstream wireless charging chip solutions. After rigorous testing, it has stable output performance and good foreign object detection (FOD) compatibility, making it safe and reliable to use.
-Powerful customization flexibility: This is its core advantage. We can provide in-depth customization according to your specific project needs, including:
-Customization of electrical parameters: inductance value, resistance value.
-Structural customization: number of coil turns, winding method, thickness.
-Interface customization: lead length, model (such as tinned copper wire, FPC cable), connector type.
-Shielding customization: shape, thickness, and adhesive method of ferrite sheet.
4. Plug and play, easy to integrate: The coil module structure is clear, and the interface definition is standard, which greatly shortens the research and development cycle for hardware engineers. It can be quickly integrated into the PCB design of various products such as charging boards, mobile power supplies, car brackets, and smart furniture.
2.Performance Characteristics
| Feature Category | Specification / Description | Benefit / Impact |
| Physical & Mechanical | ||
| Coil Outer Diameter (OD) | Standard 50.0 mm | An industry-proven optimal size for balancing charging area, efficiency, and product design. |
| Coil Construction | Precision-wound with high-purity copper wire. | Ensures low DC resistance (DCR), minimizes energy loss as heat, and improves efficiency. |
| Shielding | Integrated high-permeability ferrite sheet. | Concentrates magnetic flux, reduces EMI, prevents energy leakage to nearby metals, and improves alignment tolerance. |
| Electrical & Charging Performance | ||
| Qi Standard Compliance | Fully compliant with Qi v1.2 / v1.3 specifications. | Guaranteed compatibility with all Qi-certified receivers (smartphones, earbuds, etc.). |
| Maximum Input Power | Supports up to 15W fast wireless charging. | Enables rapid charging for compatible smartphones, reducing charge time significantly. |
| Operating Frequency | 110 kHz - 205 kHz (Standard Qi range) | Stable operation within the universal Qi band. |
| Efficiency (Typical) | High system efficiency (e.g., >75% at 5W, >70% at 10W)* | *Note: Actual efficiency depends on the full system design (TX controller, RX coil, alignment). Maximizes power transfer and reduces thermal load. |
| Reliability & Safety | ||
| Thermal Management | Low temperature rise design due to low DCR and effective structure. | Enhances long-term reliability and safety during continuous operation. |
| FOD Compatibility | Designed to work reliably with standard Foreign Object Detection circuits. | Ensures safe charging by preventing unintended heating of metallic objects (keys, coins). |
| Durability | Robust construction with secure soldering points and adhesive bonding. | Withstands vibration and mechanical stress, suitable for automotive and portable applications. |
| Customization & Integration | ||
| Electrical Parameters | Custom inductance (L) and DC resistance (DCR) values available. | Optimizes performance for your specific transmitter chipset and desired power profile. |
| Interface Options | Flexible lead wires (length, gauge, insulation) or FPC connectors. | Simplifies PCB layout and integration into your final product (charger pad, car mount, furniture). |
| Mechanical Form Factor | Custom thickness, winding pattern, and ferrite shape/size. | Enables seamless integration into space-constrained or uniquely designed products. |





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