The part number **0624CDMCCDS-R22MC** refers to a high-current, low-profile power inductor, typically manufactured by **Sumida**. These components are widely used in DC-DC converters for laptops, servers, and automotive electronics due to their compact size and high efficiency. --- ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify the physical and electrical characteristics: | Code Segment | Description | Detail | | :--- | :--- | :--- | | **0624** | **Dimensions** | Approx. 6.0 x 6.0 mm (Footprint) and 2.4 mm (Height). | | **CDMC** | **Series Type** | Power Inductor (Metal Composite Core). | | **CDS** | **Construction** | Specific shielding or termination style. | | **R22** | **Inductance Value** | **0.22 µH** (R denotes decimal point). | | **M** | **Tolerance** | **±20%** tolerance on inductance. | | **C** | **Suffix/Packaging** | Specific internal code for taping or material revision. | --- ### 2. Key Technical Specifications While exact values can vary slightly by manufacturer batch, the typical specs for the R22 (0.22µH) model in this size are: * **Inductance:** 0.22 µH * **DC Resistance (DCR):** Extremely low (typically < 3.0 mΩ). * **Saturation Current ($I_{sat}$):** Very high, often ranging from **15A to 25A** (where inductance drops by 30%). * **Temperature Rise Current ($I_{rms}$):** High thermal capacity, allowing for heavy continuous loads. * **Operating Temperature:** Generally **-55°C to +125°C**. --- ### 3. Features and Materials * **Metal Composite Core:** Unlike traditional ferrite inductors, these use a metal powder molding. This allows for **soft saturation** characteristics (the inductance doesn't drop abruptly when current increases). * **Magnetic Shielding:** The construction inherently minimizes electromagnetic interference (EMI), making it suitable for high-density PCB layouts. * **Low DCR:** Reduces power loss and heat generation, increasing overall power supply efficiency. --- ### 4. Common Applications This specific inductor is designed for high-frequency, high-current power stages: 1. **Voltage Regulator Modules (VRM):** For CPUs and GPUs. 2. **Point of Load (POL) Converters:** Converting 12V or 5V down to 1.xV for logic circuits. 3. **Battery Powered Devices:** Due to high efficiency and low profile. 4. **Automotive Infotainment:** If qualified for AEC-Q200 standards. ---