The **PS120-R68M-RC** is a high-current, shielded surface-mount (SMD) power inductor. It is commonly used in DC-DC converter applications where high efficiency and low electromagnetic interference (EMI) are required. --- ### 1. Technical Specifications The part number follows a standard naming convention for electronic components. Here is the breakdown of its core parameters: | Parameter | Specification | Description | | :--- | :--- | :--- | | **Inductance** | 0.68 µH | The "R68" represents 0.68 (R acts as a decimal). | | **Tolerance** | ±20% | Indicated by the "M" suffix. | | **Max DC Current (Idc)** | ~25A - 30A | High current handling capability for power rails. | | **DCR (DC Resistance)** | ~1.5 mΩ to 2.5 mΩ | Extremely low resistance to minimize heat loss. | | **Shielding** | Magnetically Shielded | Reduces EMI and cross-talk with nearby components. | | **Operating Temp** | -40°C to +125°C | Standard industrial/automotive grade range. | --- ### 2. Key Features * **High Saturation Current:** Designed to maintain inductance even when high levels of current flow through the coil. * **Low Profile:** The "120" series usually denotes a specific footprint (approximately 12mm x 12mm), designed for compact PCB layouts. * **Flat Wire Technology:** Often uses flat copper wire instead of round wire to increase the surface area and reduce the "Skin Effect" at high frequencies. * **RoHS Compliant:** The "RC" suffix typically indicates RoHS Compliance (Restriction of Hazardous Substances). --- ### 3. Application Use Cases This specific inductor is typically found in the power stages of high-performance electronics: 1. **Voltage Regulator Modules (VRMs):** Found on motherboards to provide power to CPUs/GPUs. 2. **Point of Load (POL) Converters:** Used in telecommunications equipment to step down voltage locally. 3. **Battery Powered Systems:** High efficiency ensures longer battery life by reducing power dissipation (low DCR). 4. **Solar Inverters:** Used in the filtering stage of DC-DC conversion. --- ### 4. Schematic Representation In a circuit diagram, the part is represented as an inductor. ```text L1 (PS120-R68M-RC) Vin ----(XXXXXX)---- Vout | [Cout] | GND ```