The **VP1-0076-R** is a high-performance, high-power density power inductor manufactured by **Eaton (formerly Coiltronics)**. It is part of the Versa-Pac series, which is characterized by its versatile design featuring multiple windings. --- ### 1. Technical Specifications The VP1-0076-R is a "Configurable Inductor/Transformer." Here are its core electrical characteristics: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Eaton (Coiltronics) | | **Inductance (Parallel)** | 7.6 µH (approximate, varies by config) | | **Inductance (Series)** | 273.6 µH (approximate, varies by config) | | **Current Rating (Isat)** | ~2.0A to 12.0A (depending on configuration) | | **DC Resistance (DCR)** | ~0.024 Ω per winding | | **Number of Windings** | 6 independent windings | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Key Design Features The "Versa-Pac" (VP) series is unique because of its **hex-winding** structure: * **Multi-Winding Versatility:** It contains six identical windings that can be connected in series or parallel. This allows a single part to act as: * A high-current inductor. * A high-ratio transformer. * A multi-output coupled inductor (flyback/SEPIC). * **SMD Package:** Designed for surface-mount technology (SMT) with a low-profile footprint, making it suitable for compact PCB designs. * **High Frequency:** Optimized for high-frequency switching power supplies (typically up to 1MHz or more). * **Isolation:** Each winding is isolated, allowing for different ground potentials in complex circuits. --- ### 3. Common Applications Due to its configurable nature, the VP1-0076-R is used in several power conversion architectures: 1. **SEPIC and Cuk Converters:** Used as a coupled inductor to reduce ripple. 2. **Flyback Transformers:** Can be configured to provide multiple output voltages (e.g., +5V, +12V, -12V) from a single primary. 3. **Step-Up/Step-Down Converters:** Used as a standard power inductor by wiring windings in parallel to handle higher current. 4. **Isolation Transformers:** Provides 500VAC isolation between windings for gate drive or signal isolation. --- ### 4. Part Number Breakdown * **VP:** Versa-Pac Series. * **1:** Size/Power rating (Size 1 is smaller than Size 2 or 3). * **0076:** Base inductance code (linked to the magnetic properties of the core). * **-R:** RoHS compliant (Lead-free).