### CTX2-2-R Component Overview The **CTX2-2-R** is a specific electronic component belonging to the **OCTA-PAC®** series manufactured by Eaton (formerly Bussmann/Coiltronics). It is a dual-winding, high-power density shielded inductor/transformer. --- ### Technical Specifications | Parameter | Value / Range | | :--- | :--- | | **Inductance (Parallel)** | 2.0 $\mu$H | | **Inductance (Series)** | 8.0 $\mu$H | | **Current Rating (Isat)** | ~8.0 A to 12.0 A (Depending on configuration) | | **DCR (DC Resistance)** | ~0.010 $\Omega$ to 0.014 $\Omega$ | | **Operating Temperature** | -40°C to +125°C | | **Mounting Type** | Surface Mount (SMD) | | **Size / Dimension** | ~11.4mm x 11.4mm x 6.0mm | --- ### Key Features and Construction 1. **Dual Winding Design**: The device contains two identical windings. These can be connected in **series** (to increase inductance) or in **parallel** (to increase current handling). 2. **Magnetic Shielding**: The CTX2-2-R is shielded to minimize Electromagnetic Interference (EMI), making it suitable for high-density boards near sensitive components. 3. **Core Material**: It utilizes a powdered iron core or ferrite material (depending on the specific revision) designed for low core losses in high-frequency power conversion. 4. **High Power Density**: Despite its small footprint, it is designed to handle significant current levels with minimal heat dissipation. --- ### Common Applications * **DC-DC Converters**: Used in buck, boost, and forward converters. * **1:1 Transformers**: Because of the dual windings, it can be used as a 1:1 isolation transformer. * **Common Mode Chokes**: It can act as a filter to suppress noise in power lines. * **Coupled Inductors**: Frequently used in SEPIC (Single-Ended Primary-Inductor Converter) topologies. --- ### Wiring Configurations | Configuration | Connection Logic | Effect | | :--- | :--- | :--- | | **Series** | Finish of Winding 1 to Start of Winding 2 | 4x Inductance, Same Current Rating | | **Parallel** | Start-to-Start and Finish-to-Finish | Same Inductance, 2x Current Rating |