The **CDB64D48NP-R10MC** is a high-current, low-profile power inductor manufactured by **Sumida**. It belongs to the CDB series, which is specifically designed for high-efficiency DC-DC converters and voltage regulator modules (VRMs). --- ### 1. Key Technical Specifications Below are the primary electrical and physical characteristics of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.10 µH (±20%) | | **Rated Current (Isat)** | ~40.0 - 50.0 A (Saturation Current) | | **DC Resistance (DCR)** | ~0.33 mΩ (Max) | | **Dimensions (LxWxH)** | 6.8 x 6.4 x 4.8 mm | | **Operating Temperature** | -40°C to +125°C | | **Core Material** | Ferrite | --- ### 2. Part Number Breakdown The nomenclature provides specific details about the component's construction: * **CDB**: Series name (Power Inductor). * **64D48**: Physical size (approx. 6.4mm width/length and 4.8mm height). * **NP**: Lead-free/RoHS compliant packaging. * **R10**: Inductance value (R10 = 0.10 microhenries). * **M**: Tolerance (M = ±20%). * **C**: Internal manufacturing/revision code. --- ### 3. Electronic Features & Advantages * **High Current Handling:** Due to the extremely low DCR (Direct Current Resistance), this inductor can handle very high saturation currents without significant power loss or overheating. * **Magnetic Shielding:** The ferrite core structure provides magnetic shielding, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. * **Low Profile:** The 4.8mm height makes it suitable for compact electronic assemblies and thin power modules. * **High Frequency Performance:** Designed to operate efficiently in high-frequency switching environments (typically used in MHz-range DC-DC converters). --- ### 4. Typical Applications These inductors are commonly found in: 1. **Server and Storage Power:** Voltage Regulator Modules (VRM) for high-performance CPUs and GPUs. 2. **Point of Load (POL) Converters:** Distributing power from a main rail to specific ICs. 3. **Laptop and Desktop Motherboards:** Managing high-current power phases. 4. **Telecom Equipment:** High-efficiency power modules for networking hardware. ---