The part number **C20-R082M** typically refers to a **SMD (Surface Mount Device) Power Inductor**, often manufactured by companies like Sumida or similar specialized electronic component producers. These are high-performance components designed for power management circuits. --- ### 1. Technical Specifications Below are the general technical parameters associated with the C20-R082M series: | Parameter | Specification | | :--- | :--- | | **Component Type** | Fixed Inductor / Power Inductor | | **Inductance** | 0.082 µH (82 nH) | | **Tolerance** | ±20% (indicated by the 'M' suffix) | | **Package/Case** | SMD (Size varies by specific manufacturer series) | | **Material** | Metal Composite or Ferrite Core | | **Current Rating** | High Saturation Current (typically >10A depending on size) | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying the part's characteristics: * **C20**: Usually refers to the physical series or the frame size of the component. * **R082**: The inductance value. The 'R' acts as a decimal point. * $R082 = 0.082\text{ µH}$ * **M**: The tolerance code. * $M = \pm20\%$ --- ### 3. Key Features * **High Current Handling:** Designed to maintain inductance even when high levels of DC current are passed through (high saturation). * **Low DCR (DC Resistance):** Minimizes power loss as heat, increasing the efficiency of the overall circuit. * **Compact Footprint:** The "C20" designation implies a surface-mount design suitable for automated pick-and-place assembly. * **Shielded Construction:** Most inductors in this class are magnetically shielded to reduce Electromagnetic Interference (EMI) with surrounding components. --- ### 4. Common Applications Due to the very low inductance (82 nH), this part is primarily used in high-frequency switching environments: 1. **DC-DC Converters:** Voltage regulator modules (VRMs) for CPUs and GPUs. 2. **Point of Load (POL):** Powering localized integrated circuits on a motherboard. 3. **High-Speed Networking:** Power supplies for routers and switches. 4. **Automotive Electronics:** Power management for ADAS or infotainment systems. ---