The **LHCC10040-R22M-R7** is a high-current, shielded power inductor typically used in DC-DC converter applications. This specific part number follows a standard naming convention used by manufacturers of molded power inductors (such as Cyntec or similar brands). --- ### 1. Technical Specifications Breakdown The alphanumeric code provides detailed information about the component's physical and electrical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **LHCC** | Series Type | Molded High Current Inductor (Metal Alloy core). | | **10040** | Case Size | Dimensions: Approx. **10.0mm x 11.0mm** with a height of **4.0mm**. | | **R22** | Inductance Value | **0.22 µH** (R denotes the decimal point). | | **M** | Tolerance | **±20%** (Standard industry code for inductance tolerance). | | **R7** | Packaging/Suffix | Often denotes reel size or a specific internal revision code. | --- ### 2. Key Electrical Characteristics Based on the standard 10040 R22 series, the typical performance values are: * **Inductance:** 0.22 µH. * **DC Resistance (DCR):** Extremely low, typically between **0.80 mΩ to 1.3 mΩ**. This minimizes power loss and heat generation. * **Saturation Current (Isat):** Very high, usually ranging from **40A to 60A**. This is the current at which the inductance drops by a specified percentage (usually 30%). * **Heat Rating Current (Irms):** Typically around **25A to 35A**, representing the current that causes a 40°C temperature rise. --- ### 3. Construction and Features 1. **Molded Structure:** The coil is embedded in a metallic magnetic powder (usually an iron alloy). This "molded" design provides excellent magnetic shielding to reduce Electromagnetic Interference (EMI). 2. **Low Buzz Noise:** The solid construction minimizes acoustic noise (magnetostriction) compared to traditional ferrite drum cores. 3. **High Reliability:** Capable of handling high transient current spikes without hard saturation. 4. **Lead-Free/RoHS:** Compliant with modern environmental safety standards. --- ### 4. Common Applications This inductor is designed for high-density power modules where high efficiency and small footprints are required: * **Voltage Regulator Modules (VRM):** For CPUs and GPUs in laptops and servers. * **DC-DC Converters:** Point-of-Load (POL) power supplies. * **Battery Powered Devices:** High-current power management systems. * **Automotive Electronics:** Infotainment and ADAS systems (if AEC-Q200 qualified). ---