### CTX50-7-52LP-R: Detailed Component Analysis The **CTX50-7-52LP-R** is a high-performance, dual-winding toroidal power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the **OCTA-PAC® PLUS** series, known for high power density and versatility. --- ### 1. Key Technical Specifications | Parameter | Value / Description | | :--- | :--- | | **Inductance (Parallel)** | 49.3 µH | | **Inductance (Series)** | 197.2 µH | | **Current Rating (Parallel)** | 1.83 A | | **DCR (Direct Current Resistance)** | 0.126 Ω (Parallel) | | **Core Material** | Iron Powder (Material -52) | | **Mounting Type** | Surface Mount (SMD) | | **Operating Temperature** | -40°C to +125°C | | **Dimensions** | Approx. 14.22mm x 14.22mm x 5.8mm | --- ### 2. Physical and Magnetic Construction * **Dual Winding Design:** The device contains two identical windings. This allows the component to be configured in three ways: 1. **Series:** For higher inductance. 2. **Parallel:** For higher current capacity. 3. **1:1 Transformer:** For use in SEPIC converters or isolated applications. * **Core Material (-52):** The "52" in the part number refers to the iron powder mix. This material is optimized for high-frequency applications (up to 500 kHz) and offers low core losses and stable performance over temperature changes. * **Low Profile (LP):** The "LP" suffix indicates a low-profile design, making it suitable for compact electronic assemblies where vertical space is limited. --- ### 3. Application Use Cases The CTX50-7-52LP-R is commonly integrated into the following circuits: 1. **DC-DC Converters:** Acts as an energy storage inductor in Buck, Boost, and Forward converters. 2. **SEPIC Converters:** Utilizing the dual windings to provide a non-inverted output voltage that can be higher or lower than the input. 3. **EMI Filtering:** Used as a common-mode choke to filter out high-frequency noise in power lines. 4. **Battery Powered Systems:** Ideal for portable electronics due to its efficiency and small footprint. --- ### 4. Part Number Breakdown | Segment | Meaning | | :--- | :--- | | **CTX** | Product Series (OCTA-PAC) | | **50** | Inductance Code | | **7** | Size/Power Rating Identifier | | **52** | Core Material Type (Iron Powder) | | **LP** | Low Profile Housing | | **R** | RoHS Compliant |