The **VP2-0216-R** is a specific electronic component belonging to the **Versa-Pac (VP)** series of high-power density, surface-mount transformers/inductors manufactured by **Eaton (formerly Coiltronics)**. ### 1. Key Technical Specifications The VP2-0216-R is a multi-winding magnetic component designed for versatility in DC-DC converters and power supplies. | Parameter | Specification (Typical) | | :--- | :--- | | **Inductance (Open Circuit)** | ~18.5 µH (per winding) | | **Peak Current ($I_{sat}$)** | ~1.42 A | | **RMS Current ($I_{rms}$)** | ~1.34 A | | **DC Resistance (DCR)** | ~0.108 Ω | | **Number of Windings** | 6 individual windings | | **Mounting Type** | Surface Mount (SMT) | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Structure and Design The device is built using a toroidal core structure which offers excellent magnetic shielding and high efficiency. * **Windings:** It consists of six identical windings that can be connected in various series or parallel combinations. * **Isolation:** Each winding is electrically isolated from the others, typically rated for 500VAC isolation. * **Package Size:** The "VP2" refers to the size 2 package, which is a low-profile, compact footprint suitable for high-density PCB layouts. --- ### 3. Functional Applications Because it contains six separate windings, the VP2-0216-R can be configured to act as several different components: 1. **Flyback Transformer:** By using one winding as a primary and others as secondaries (e.g., for multi-output supplies). 2. **Forward Converter:** Providing galvanic isolation between input and output. 3. **Buck/Boost Inductor:** Connecting windings in parallel to increase current capacity or in series to increase inductance. 4. **SEPIC Converter:** Using the windings to provide the necessary coupled inductance for Single-Ended Primary-Inductor Converters. --- ### 4. Connection Configuration Example Below is a simplified representation of how the windings are typically laid out on the footprint: ```text [Pin 1] --(Winding 1)-- [Pin 12] [Pin 2] --(Winding 2)-- [Pin 11] [Pin 3] --(Winding 3)-- [Pin 10] [Pin 4] --(Winding 4)-- [Pin 9] [Pin 5] --(Winding 5)-- [Pin 8] [Pin 6] --(Winding 6)-- [Pin 7] ``` ---