The **PCHC412R8-2R2M-RC** is a high-current, shielded power inductor typically manufactured by brands like Allied Components International. It is designed for high-density power applications where space and efficiency are critical. --- ### 1. Component Specifications Below are the technical characteristics of the part: | Parameter | Value/Specification | | :--- | :--- | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% (indicated by 'M') | | **DCR (Direct Current Resistance)** | ~7.0 mΩ (Typical) | | **Isat (Saturation Current)** | ~18.0 A (Approximate) | | **Irms (Rated Current)** | ~12.0 A (Approximate) | | **Operating Temperature** | -55°C to +125°C | | **Package Size** | 12.0 x 12.0 x 8.0 mm (approx.) | --- ### 2. Part Number Breakdown The alphanumeric code follows a specific naming convention: * **PCHC**: Product Series (Power Choke High Current). * **412R8**: Dimensional code (Size/Height indicators). * **2R2**: Inductance value ($2.2 \times 10^0$ µH). * **M**: Tolerance (M = ±20%). * **RC**: RoHS Compliant. --- ### 3. Key Electronic Features * **Magnetic Shielding**: The inductor is molded with a magnetic metal powder core, which minimizes Electromagnetic Interference (EMI) and prevents noise from affecting surrounding components. * **High Saturation**: Designed to handle high peak currents without the inductance dropping significantly, making it ideal for high-load transitions. * **Low DCR**: The use of flat wire or heavy-gauge copper reduces internal resistance, minimizing power loss (heat) and maximizing efficiency. * **Surface Mount (SMD)**: Designed for automated pick-and-place assembly on PCBs. --- ### 4. Common Applications This part is commonly found in power management circuits such as: 1. **DC-DC Converters**: Used as an energy storage element in buck or boost regulators. 2. **Voltage Regulator Modules (VRM)**: Supporting CPUs and GPUs in computing hardware. 3. **Industrial Power Supplies**: High-efficiency power modules. 4. **Battery Powered Devices**: Where high current and small footprint are required.