The **M5R68RH-R** is a high-performance, surface-mount power inductor typically used in DC-DC converter applications. It belongs to a class of shielded power inductors designed to handle high current while maintaining a low profile. --- ### 1. Technical Specifications The part number typically follows a specific nomenclature used by manufacturers like **ALPS** or **Cyntec**. Below are the generalized specifications for this series: | Parameter | Typical Value / Description | | :--- | :--- | | **Inductance** | 0.68 µH (Represented by "R68") | | **Tolerance** | ±20% (Commonly) | | **DCR (Direct Current Resistance)** | Very Low (typically < 2.0 mΩ) | | **Saturation Current (Isat)** | High (often 20A - 40A depending on size) | | **Operating Temperature** | -40°C to +125°C | | **Shielding** | Magnetic Shielded (Reduces EMI) | --- ### 2. Key Features * **High Current Density:** Designed using metal alloy powder cores which allow for higher saturation currents compared to traditional ferrite cores. * **Magnetic Shielding:** The construction minimizes electromagnetic interference (EMI), which is critical in densely packed PCB designs. * **Low DCR:** Reduces power loss (heat) and improves the overall efficiency of power supplies. * **Soft Saturation:** Unlike ferrite inductors that drop inductance sharply, these metal composite inductors have a gradual saturation curve. --- ### 3. Applications The M5R68RH-R is primarily found in high-efficiency power regulation circuits: * **Voltage Regulator Modules (VRM):** Used in CPU and GPU power delivery on motherboards. * **DC-DC Converters:** Point-of-load (POL) converters in telecommunications. * **Battery Powered Devices:** Laptops and tablets where space is limited and efficiency is vital. * **Automotive Electronics:** Infotainment and ADAS systems (if AEC-Q200 qualified). --- ### 4. Part Number Breakdown While manufacturer codes vary slightly, the string generally breaks down as follows: | Segment | Meaning | | :--- | :--- | | **M5** | Series or Case Size Identifier | | **R68** | Inductance Value (0.68 microhenries) | | **RH** | Core Material / Packaging Style | | **-R** | RoHS Compliant / Tape and Reel Packaging | ---