## CTMPC100804F-R68M Component Overview The **CTMPC100804F-R68M** is a high-performance, surface-mount (SMD) power inductor commonly used in DC-DC converters and power management modules. It belongs to a class of "molded" inductors designed for high current density and low electromagnetic interference (EMI). --- ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify the component's physical and electrical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **CTMPC** | Series Prefix | Metal Alloy Powder Molded Chip Inductor | | **100804** | Dimensions | Approx. 10.0 x 8.0 x 4.0 mm | | **F** | Lead-Free | RoHS Compliant / Green Material | | **R68** | Inductance Value | 0.68 µH (Microhenries) | | **M** | Tolerance | ±20% | --- ### 2. Key Electrical Specifications Based on standard datasheets for this series, here are the typical technical parameters: * **Inductance:** 0.68 µH * **Tolerance:** ±20% * **DCR (DC Resistance):** Very low (typically in the range of 1.5mΩ to 3.0mΩ) to minimize power loss. * **Isat (Saturation Current):** The current level where inductance drops by a specific percentage (usually 30%). This part typically supports high currents (often >20A). * **Irms (Temperature Rise Current):** The current that causes a 40°C temperature rise above ambient. --- ### 3. Core Features and Technology The "Molded" construction sets this part apart from traditional wire-wound inductors: 1. **Metal Alloy Powder:** The core is made of a composite metal powder pressed around the coil. This allows for soft saturation (the inductor doesn't "fail" suddenly at high currents). 2. **Magnetic Shielding:** Because the coil is fully encased in the metal powder, it is naturally shielded. This reduces EMI, preventing the inductor from interfering with nearby sensitive components. 3. **High Reliability:** The solid construction makes it resistant to mechanical shock and vibration. --- ### 4. Common Applications This inductor is typically found in high-efficiency power circuits: * **Voltage Regulator Modules (VRM):** For CPUs and GPUs. * **DC/DC Converters:** Point-of-Load (POL) power supplies. * **Battery Powered Devices:** High-current power management in laptops or tablets. * **Automotive Electronics:** Infotainment and LED lighting drivers. --- ### 5. Footprint (Mechanical) ```text Approximate Dimensions: L: 10.0mm ± 0.3mm W: 8.0mm ± 0.3mm H: 4.0mm (Max) ```