The **CTMPH121004F-R24M** is a high-performance power inductor designed specifically for high-current applications and DC-DC converters. It belongs to the family of **Molded Power Inductors**, which are known for their efficiency and compact size. Below is a detailed breakdown of its electronic specifications and characteristics. ### 1. Technical Specifications The following table summarizes the key electrical parameters for this specific part number: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.24 µH | | **Tolerance** | ±20% (M) | | **Case Size (Metric)** | 3225 (3.2mm x 2.5mm) | | **Case Height** | 1.0 mm (Low Profile) | | **DC Resistance (DCR)** | ~5.3 mΩ (Typical) | | **Saturation Current ($I_{sat}$)** | ~13.0 A | | **Heating Current ($I_{rms}$)** | ~10.0 A | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Key Features and Construction The "CTMPH" series utilizes specific construction techniques to handle high power in a small footprint: * **Metal Composite Core:** The inductor uses a metal alloy powder core. Unlike traditional ferrite cores, metal powder provides a "soft saturation" characteristic, meaning the inductance drops gradually rather than abruptly when current increases. * **Shielded Construction:** The molded design inherently provides magnetic shielding, which minimizes Electromagnetic Interference (EMI) with surrounding components on the PCB. * **Low DCR:** By using flat wire or optimized winding techniques, it achieves very low DC resistance, which reduces power loss and heat generation. ### 3. Part Number Decoder Understanding the nomenclature helps in identifying variants: | Segment | Meaning | | :--- | :--- | | **CTMPH** | Series Name (Molded Power High Current) | | **1210** | Physical Dimensions (Approx. 0.12 x 0.10 inches) | | **04** | Height Code (Approx 1.0mm) | | **F** | RoHS Compliant / Lead-Free | | **R24** | Inductance Value (R24 = 0.24 µH) | | **M** | Tolerance (M = ±20%) | --- ### 4. Typical Applications This component is commonly found in modern portable electronics where space is limited but power demands are high: * **Voltage Regulator Modules (VRMs):** For CPUs and GPUs. * **DC-DC Converters:** Point-of-load (POL) power supplies. * **Mobile Devices:** Smartphones, tablets, and wearable technology. * **SSD Power Supplies:** Providing stable current to high-speed flash memory.