The **CTX100-5-52LP-R** is a high-performance power inductor manufactured by **Eaton (formerly Coiltronics)**. It belongs to the **OCTA-PAC** series, which is known for its versatility and high power density in surface-mount applications. --- ### ## Technical Specifications Below are the primary electrical and physical characteristics of this component: | Parameter | Value | | :--- | :--- | | **Inductance** | 100 µH | | **Current Rating (Irms)** | ~0.87 Amperes | | **Peak Current (Isat)** | ~1.15 Amperes | | **DC Resistance (DCR)** | 0.407 Ohms (Max) | | **Core Material** | Iron Powder (Material -52) | | **Mounting Type** | Surface Mount (SMD) | | **Operating Temp** | -40°C to +125°C | --- ### ### Key Features and Design The "LP" in the part number stands for **Low Profile**, making it suitable for compact electronic assemblies. 1. **Dual Winding Construction:** This part features two identical windings. This allows the inductor to be configured in different ways: * **Series:** Increases total inductance. * **Parallel:** Increases current handling capability. * **Transformer mode:** Can be used as a 1:1 isolation transformer or a coupled inductor. 2. **Core Material (-52):** The suffix "-52" refers to the specific Iron Powder core. This material is optimized for high-frequency applications (up to 250kHz - 500kHz) and offers low core losses and good thermal stability. 3. **EMI Shielding:** While not fully shielded like some molded inductors, the toroidal shape of the internal core inherently limits electromagnetic interference (EMI) compared to open-bobbin designs. --- ### ### Common Applications Due to its dual-winding nature and power density, the CTX100-5-52LP-R is frequently found in: * **DC-DC Converters:** Specifically in Buck, Boost, and SEPIC topologies. * **Power Supplies:** Used as an output filter inductor for switching regulators. * **Signal Isolation:** As a 1:1 transformer for low-power signal or gate drive isolation. * **Computer Peripherals:** Used in high-density power modules for servers and workstations. --- ### ### Part Number Breakdown Understanding the nomenclature helps in selecting alternates: * **CTX:** Eaton/Coiltronics Series prefix. * **100:** Inductance value (100 µH). * **5:** Size code (refers to physical dimensions of the OCTA-PAC casing). * **52:** Core material type (Iron Powder). * **LP:** Low Profile package. * **R:** RoHS compliant.