## Technical Overview of CTX10-5-52LP-R The **CTX10-5-52LP-R** is a high-performance, surface-mount (SMT) dual-winding inductor (transformer) manufactured by **Eaton (formerly Coiltronics)**. It belongs to the **OCTA-PAC® PLUS** series, which is specifically designed for high power density and versatility in power conversion circuits. --- ### 1. Key Technical Specifications | Parameter | Value / Specification | | :--- | :--- | | **Inductance (Parallel)** | 10.3 $\mu$H | | **Inductance (Series)** | 41.2 $\mu$H | | **Rated Current ($I_{rms}$)** | 4.80 A (Parallel) | | **Saturation Current ($I_{sat}$)** | 6.40 A (Parallel) | | **DC Resistance (DCR)** | 0.024 $\Omega$ (Parallel) | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Package / Case** | OCTA-PAC® Size 5 | --- ### 2. Physical Construction and Features * **Dual Winding Design:** The device contains two separate windings that can be connected in series or parallel. This allows the component to function as an inductor, a 1:1 transformer, or a common-mode choke. * **Core Material:** It utilizes a **powder iron core** material (specifically the "-52" mix), which is optimized for high frequency and low core losses. * **Low Profile (LP):** The "LP" designation indicates a lower physical height compared to standard OCTA-PAC models, making it ideal for space-constrained PCB designs. * **RoHS Compliant:** The "-R" suffix confirms that the part meets lead-free and environmental safety standards. --- ### 3. Common Applications The versatility of the CTX10-5-52LP-R makes it suitable for various power electronics roles: 1. **Buck/Boost Converters:** Used as a power inductor for DC-DC voltage regulation. 2. **SEPIC Converters:** The dual windings allow it to act as the coupled inductor required for Single-Ended Primary-Inductor Converters. 3. **Isolation Transformers:** Provides 1:1 voltage transformation for signal or power isolation. 4. **Common-Mode Chokes:** Effectively filters out electromagnetic interference (EMI) in power lines. --- ### 4. Connection Configuration The performance characteristics change based on how you wire the pins: ```text Parallel Connection: - Inductance: L - Current: 2 x I - DCR: 0.5 x DCR Series Connection: - Inductance: 4 x L - Current: 1 x I - DCR: 2 x DCR ``` ---