The **WCT-1C2-R/E** is a specific wireless power transmitter coil assembly, typically manufactured by companies like **Abracon** or **TDK**. This component is designed to meet **Qi standards** for wireless charging applications. Below is a detailed breakdown of its electronic characteristics and construction. --- ### 1. Key Technical Specifications The performance of the WCT-1C2-R/E is defined by its electrical properties, which ensure compatibility with wireless charging power management ICs. | Parameter | Typical Value | Description | | :--- | :--- | :--- | | **Inductance (L)** | 24.0 µH ± 10% | Measured at 100kHz, 1V | | **DC Resistance (DCR)** | 100 mΩ (Max) | Affects heat generation and efficiency | | **Quality Factor (Q)** | 80 - 100 (Min) | High Q indicates lower energy loss | | **Saturation Current** | ~5A - 7A | The current level where inductance drops | | **Operating Temp** | -25°C to +85°C | Standard commercial/industrial range | --- ### 2. Physical Construction The "1C2" designation refers to the specific coil configuration defined by the Wireless Power Consortium (WPC). * **Coil Material:** High-quality Litz wire (multi-strand wire) is used to minimize the "skin effect," reducing resistance at high frequencies. * **Ferrite Shield:** The coil is mounted on a manganese-zinc (MnZn) or nickel-zinc (NiZn) ferrite plate. This plate directs the magnetic flux toward the receiver and prevents EMI from affecting the underlying circuitry. * **Adhesive:** Usually comes with a pressure-sensitive adhesive (PSA) backing for easy mounting inside device enclosures. --- ### 3. Electronic Functionality The WCT-1C2-R/E functions as the **Primary Coil** in an inductive coupling system: 1. **Inductive Coupling:** It converts an oscillating electrical current from the transmitter circuit into a varying magnetic field. 2. **Resonant Frequency:** It is designed to operate within the 110 kHz to 205 kHz range (Qi standard). 3. **Efficiency:** Due to the low DCR and high Q factor, it minimizes energy lost as heat during the power transfer process. --- ### 4. Application Use Cases This part is commonly integrated into the following systems: * **Charging Pads:** Desktop wireless chargers for smartphones. * **Automotive Consoles:** Integrated wireless charging docks in vehicles. * **Industrial Handhelds:** Waterproof or rugged devices that cannot have physical charging ports. * **Furniture Integration:** Power spots built into tables or desks. ---