The **104CDMCCDS-R56MC** is a high-performance **shielded power inductor** manufactured by **Sumida**. It is part of the CDMCCDS series, designed primarily for automotive and high-reliability industrial applications. --- ### 1. Technical Specifications The part number encodes specific electrical and physical characteristics. Here is the breakdown of its core parameters: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.56 µH (Microhenries) | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~1.6 mΩ (Typical) | | **Saturation Current (Isat)** | ~31.0 A | | **Temperature Rise Current (Irms)** | ~25.0 A | | **Dimensions** | 11.5 x 10.4 x 4.0 mm | | **Operating Temperature** | -55°C to +155°C | --- ### 2. Key Features * **Metal Compound Molding:** Uses a metal powder molding technology which allows for a high saturation current and low DCR in a small footprint. * **Magnetic Shielding:** The molded construction provides excellent magnetic shielding, minimizing Electromagnetic Interference (EMI) with surrounding components. * **Automotive Grade (AEC-Q200):** This part is typically qualified for automotive use, meaning it can withstand high vibration and extreme temperature fluctuations. * **Low Profile:** With a height of roughly 4.0 mm, it is suitable for slim electronic assemblies. --- ### 3. Part Number Decoding The alphanumeric string follows a specific nomenclature: | Segment | Meaning | | :--- | :--- | | **104** | Size code (approx. 10mm x 11mm) | | **CDMC** | Series name (Metal Powder Molded Inductor) | | **CDS** | Construction/Material variant (often denotes high-temp or specific core) | | **R56** | Inductance value (R = decimal point; R56 = 0.56 µH) | | **M** | Tolerance (M = ±20%) | | **C** | Packaging / Special code (typically Taping/Reel) | --- ### 4. Common Applications Due to its high current handling and low EMI profile, it is used in: * **DC/DC Converters:** Voltage regulation in automotive infotainment or engine control units (ECU). * **Power Modules:** High-efficiency power supplies for industrial computers. * **Battery Management Systems (BMS):** Handling high-frequency switching in battery circuits.