The **CTX200-4P-R** is a high-performance, shielded power inductor specifically designed for DC-DC converters and power management circuits. It belongs to the **OCTA-PAC® PLUS** series manufactured by **Eaton (formerly Coiltronics)**. ### 1. Technical Specifications Below are the primary electrical characteristics for the CTX200-4P-R: | Parameter | Specification | | :--- | :--- | | **Inductance** | 200 µH (Typical) | | **Rated Current (Irms)** | ~0.46 Amps | | **Saturation Current (Isat)** | ~0.55 Amps | | **DC Resistance (DCR)** | ~0.825 Ohms (Max) | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | Surface Mount (SMD) | | **Material** | Ferrite Core / Copper Wire | --- ### 2. Key Internal Components & Materials The device is built using several specific electronic components and engineering features: * **Ferrite Core:** Utilizes a high-density ferrite core which provides high permeability and low core losses at high frequencies. * **Shielding:** It is a **shielded** inductor. This means the magnetic field is contained within the component, significantly reducing Electromagnetic Interference (EMI) with neighboring components on the PCB. * **Winding Structure:** The "4P" in the part number often refers to the specific winding configuration or size class within the OCTA-PAC series. It uses high-temperature rated copper wire to ensure stability under load. * **Lead-Free Construction:** The "-R" suffix indicates that the part is **RoHS compliant**, utilizing lead-free solder and plating. --- ### 3. Circuit Applications This part is commonly found in the following electronic environments: 1. **Buck/Boost Converters:** Used for energy storage to smooth out current ripples. 2. **Input/Output Filters:** Used to eliminate noise in power lines. 3. **Computer Peripherals:** Frequently used in laptops and servers for localized power regulation. 4. **Industrial Controls:** Suitable for 24V DC systems requiring stable inductance. --- ### 4. Physical Dimensions (Approximate) The CTX series follows a standardized footprint for automated SMT (Surface Mount Technology) assembly: * **Length:** ~11.4 mm * **Width:** ~11.4 mm * **Height:** ~4.8 mm * **Mounting:** Designed for pick-and-place machines with a flat top for vacuum nozzles.