The **252010CDMCDDS-R68MC** is a surface-mount (SMD) power inductor commonly used in compact electronic devices for voltage regulation and power management. --- ### 1. Technical Specifications Breakdown The part number follows a specific nomenclature used by manufacturers (typically Sumida or similar magnetic component specialists). | Parameter | Specification | Description | |:---|:---|:---| | **Inductance** | 0.68 µH | The measure of magnetic energy storage. | | **Tolerance** | ±20% (Code: M) | The allowable variance from the nominal inductance. | | **Case Size** | 252010 (Metric) | Dimensions: 2.5mm x 2.0mm x 1.0mm. | | **DCR (DC Resistance)** | Low | Minimized to reduce power loss as heat. | | **Core Material** | Metal Alloy | Provides high saturation current and stability. | | **Shielding** | Shielded | Magnetic shielding to reduce EMI (Electromagnetic Interference). | --- ### 2. Physical Characteristics * **Form Factor:** Extremely low profile (1.0mm height), making it ideal for thin devices like smartphones or tablets. * **Construction:** Metal powder molding technology. This design allows for higher current handling compared to traditional ferrite inductors of the same size. * **Durability:** High resistance to mechanical shock and thermal stress. --- ### 3. Functional Use Cases This inductor is primarily used as a "choke" in **DC-DC Converter circuits**. Its role is to smooth out current ripples and store energy during switching cycles. * **Mobile Electronics:** Power rails for CPUs/GPUs in handsets. * **IoT Modules:** Compact power management for sensors and wireless modules. * **Wearables:** Efficient power conversion for smartwatches and fitness trackers. --- ### 4. Key Advantages 1. **High Saturation Current:** The metal alloy core prevents the inductance from dropping sharply when high current flows through it. 2. **Low EMI:** Because it is magnetically shielded, it does not interfere with nearby sensitive components (like antennas or audio circuits). 3. **Efficiency:** Low DCR ensures that very little battery power is wasted as heat.