## CTX50-2-52LP-R: Component Analysis The **CTX50-2-52LP-R** is a high-performance, surface-mount (SMT) power inductor manufactured by **Eaton (formerly Cooper Bussmann)**. It belongs to the **OCTA-PAC** series, known for its versatility and integrated design. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 50.1 μH (Parallel) / 200 μH (Series) | | **Current Rating (Irms)** | 1.87 Amperes | | **Saturation Current (Isat)** | 2.58 Amperes | | **DC Resistance (DCR)** | 0.089 Ω (Typical) | | **Operating Temperature** | -40°C to +125°C | | **Termination/Case** | Surface Mount (LP - Low Profile) | | **Core Material** | Iron Powder (Material -52) | --- ### 2. Key Features & Construction * **Dual Winding Design:** The device contains two separate windings that can be connected in **series** (for higher inductance) or **parallel** (for higher current capacity). * **Core Material (-52):** The suffix "-52" refers to the specific Iron Powder core. This material is optimized for high-frequency applications, providing low core losses and stable performance under high temperatures. * **Low Profile (LP):** The "LP" designation indicates a compact height, making it ideal for density-sensitive applications like laptops or compact industrial modules. * **RoHS Compliant:** The "-R" suffix confirms that the component meets Lead-Free and environmental safety regulations. --- ### 3. Application Use Cases This component is commonly found in the following electronic circuits: 1. **DC-DC Converters:** Used for energy storage and filtering in Buck, Boost, and SEPIC topologies. 2. **Transformer Mode:** Due to the dual windings, it can be used as a 1:1 transformer for isolation or voltage shifting. 3. **EMI Filtering:** Excellent for differential mode noise suppression in power supply lines. 4. **Signal Coupling:** Used in telecommunications to isolate or couple AC signals while blocking DC. --- ### 4. Wiring Configurations Because it has four leads, the electrical characteristics change depending on how it is soldered to the PCB: ```text Parallel Connection: - Connect Pin 1 to 2, and Pin 3 to 4. - Result: 50.1 μH, Max Current capacity. Series Connection: - Connect Pin 2 to 3. Input at 1, Output at 4. - Result: 200 μH, Lower Current capacity. ``` ---