The **MC1350-R68M1** is a high-performance, surface-mount (SMD) power inductor. These components are primarily used for energy storage and filtering in power management circuits. --- ### 1. Technical Specifications Below are the typical electrical characteristics for the R68 series of this component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±20% (M) | | **Case Size** | 1350 (approx. 13.5 x 12.5 x 5.0 mm) | | **DC Resistance (DCR)** | Extremely Low (typically < 2.0 mΩ) | | **Saturation Current ($I_{sat}$)** | Very High (typically 30A - 50A range) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction The "MC1350" designation refers to the physical footprint and material composition: * **Molded Construction:** The coil is encapsulated in a metallic iron powder core. This design provides excellent magnetic shielding to minimize Electromagnetic Interference (EMI). * **Small Footprint:** Despite the high current capability, the 1350 size is designed for high-density PCB layouts. * **Solderability:** Features lead-free (RoHS compliant) terminals suitable for reflow soldering. --- ### 3. Key Functions & Applications The MC1350-R68M1 serves several critical roles in electronic assemblies: #### A. Energy Storage In **DC-DC Buck Converters**, this inductor stores energy in its magnetic field during the "on" cycle of the switching transistor and releases it to the load during the "off" cycle, maintaining a steady output voltage. #### B. Noise Filtering It acts as a low-pass filter, smoothing out high-frequency ripple current generated by switching power supplies, ensuring "clean" power reaches sensitive components like CPUs or GPUs. #### C. Common Use Cases * **Computing:** Voltage Regulator Modules (VRMs) for Motherboards and Servers. * **Consumer Electronics:** High-current power supplies for gaming consoles and TVs. * **Industrial:** Distributed power systems and DC-DC converters. --- ### 4. Part Number Breakdown * **MC:** Series prefix (often identifying the manufacturer's molded series). * **1350:** Dimensions (13mm x 12.5mm base, 5.0mm height). * **R68:** Inductance value ($0.68$ microhenries). * **M:** Tolerance code ($\pm 20\%$). * **1:** Revision or packaging code.