The **VLS252010ET-R68N** is a low-profile, surface-mount (SMD) power inductor manufactured by **TDK Corporation**. It belongs to the VLS series, which is specifically designed for high-efficiency DC-DC converter circuits in compact electronic devices. --- ## 1. Technical Specifications Below are the key electrical and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Inductance** | 0.68 µH | | **Tolerance** | ±30% | | **DC Resistance (DCR)** | 0.054 Ω (Max) / 0.045 Ω (Typ) | | **Rated Current (Isat)** | 2.50 A (Based on inductance change) | | **Rated Current (Itemp)** | 2.15 A (Based on temperature rise) | | **Package Size** | 2.5mm x 2.0mm x 1.0mm (Metric 2520) | | **Shielding** | Magnetic Shielded (Resin) | | **Mounting Type** | Surface Mount (SMD/SMT) | --- ## 2. Key Features and Construction ### A. Magnetic Shielding The device uses a **magnetic resin shield**. Unlike unshielded inductors, this construction minimizes electromagnetic interference (EMI), making it suitable for high-density circuit boards where components are packed closely together. ### B. Low Profile With a maximum height of **1.0 mm**, it is ideal for "slim" electronics. The "10" in the part number (VLS2520**10**) denotes this 1.0mm thickness. ### C. Core Material It utilizes a **Ferrite Core**, which provides high magnetic flux density and stability for power applications. --- ## 3. Part Number Breakdown Understanding the nomenclature helps in identifying similar components: | Segment | Meaning | | :--- | :--- | | **VLS** | TDK Series Name (Magnetic shielded, wire wound) | | **2520** | Dimensions (2.5mm length x 2.0mm width) | | **10** | Height (1.0mm max) | | **ET** | Packaging style (Taping) | | **-R68** | Inductance value (R68 = 0.68 µH) | | **N** | Inductance tolerance (N = ±30%) | --- ## 4. Typical Applications This inductor is typically found in the power management units (PMIC) of: * **Smartphones and Tablets:** For battery-operated DC-DC step-down/step-up converters. * **HDD/SSD Drives:** For voltage regulation. * **Wearables:** Due to its small footprint and low profile. * **Bluetooth Modules:** Where EMI shielding is critical for signal integrity.