The **CTMPH080504F-R24M** is a high-performance, miniature SMT (Surface Mount Technology) power inductor. It is specifically designed for high-density power applications where space is limited, such as in smartphones, tablets, and DC-DC converter modules. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the physical and electrical characteristics of the component: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **CTMPH** | Series Name | Molded Power Inductor (High Current) | | **080504** | Case Size | 2.0mm x 1.25mm x 1.0mm (EIA 0805 metric) | | **F** | Material Code | Ferrite/Metal Mixture (RoHS Compliant) | | **R24** | Inductance Value | 0.24 µH (Microhenries) | | **M** | Tolerance | ±20% | --- ### 2. Key Electrical Specifications Based on the standard manufacturing profiles for this series, the typical electrical parameters are: * **Inductance:** 0.24 µH * **DC Resistance (DCR):** Extremely low (typically in the range of 15-25 mΩ) to minimize power loss. * **Saturation Current (Isat):** The current at which inductance drops by 30%. For this model, it is typically around **5.0A to 6.5A**. * **Rated Current (Irms):** The current that causes a 40°C temperature rise, usually around **4.0A to 5.5A**. * **Operating Temperature:** -40°C to +125°C. --- ### 3. Construction and Material Features The "Molded" designation (the "M" in CTMPH) indicates a specific manufacturing process: * **Metal Powder Core:** Instead of a traditional wire-wound ferrite core, this part uses a metallic powder pressed around the coil. * **Magnetic Shielding:** The molded construction provides inherent magnetic shielding, reducing Electromagnetic Interference (EMI) with neighboring components. * **High Saturation:** Unlike standard ferrites that have a "sharp" saturation curve, these metal-molded inductors have a **soft saturation** characteristic, meaning they handle current spikes more gracefully. --- ### 4. Typical Applications This component is primarily used in high-frequency switching environments: 1. **DC-DC Converters:** Point-of-Load (POL) power supplies for CPUs and GPUs. 2. **Mobile Devices:** Battery-powered electronics where high efficiency and small footprint are critical. 3. **Wearables:** Due to its low profile (1.0mm height). ---