The **VP1-0190-R** is a high-performance, high-frequency power inductor manufactured by Eaton (formerly Cooper Bussmann/Coiltronics). It is part of the **Versa-Pac®** series, which is known for its versatility in multi-winding applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Inductance** | 18.9 µH (Base configuration) | | **Current Rating (Isat)** | ~1.67 A (Parallel configuration) | | **DC Resistance (DCR)** | ~0.106 Ω | | **Operating Temperature** | -40°C to +125°C | | **Package Type** | Surface Mount (SMT) | | **Construction** | 6-winding configuration | --- ### 2. Design and Construction The defining feature of the VP1-0190-R is its **six-winding** architecture. Each of the six windings is independent, allowing for multiple circuit topologies using a single component. * **Customization:** By connecting pins in series or parallel, you can change the inductance and current-carrying capacity. * **Isolation:** The windings are electrically isolated from each other, which is essential for certain power conversion tasks. * **Material:** It typically utilizes a high-frequency ferrite core designed for low core losses. --- ### 3. Common Applications Due to its multi-winding nature, this part is used in several specific power electronics scenarios: 1. **Flyback Transformers:** The multiple windings allow for multiple output voltages or isolated feedback loops. 2. **Buck/Boost Converters:** Used as a standard energy storage inductor. 3. **SEPIC Converters:** The 1:1 ratio capability makes it ideal for Single-Ended Primary-Inductor Converters. 4. **Common Mode Chokes:** Can be wired to filter noise in power lines. --- ### 4. Circuit Implementation (Example) To achieve different values, engineers use the following logic: ```c // Series Connection (Increases Inductance) Inductance_Total = N^2 * L_Base; // Parallel Connection (Increases Current Handling) Current_Total = N * I_Base; ``` ---