## Technical Overview: VLB10050HT-R30N The **VLB10050HT-R30N** is a high-current, surface-mount (SMD) power inductor manufactured by **TDK Corporation**. It is specifically designed for use in power supply circuits, particularly for high-frequency DC-to-DC converters. --- ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 0.3 µH (300 nH) | | **Tolerance** | ±30% | | **DC Resistance (DCR)** | 0.19 mΩ (Typical) | | **Rated Current (Isat)** | 85 A (Saturation Current) | | **Rated Current (Itemp)** | 52 A (Temperature Rise Current) | | **Dimensions (L x W x H)** | 10.0 x 5.0 x 5.0 mm | | **Operating Temperature** | -40°C to +125°C | --- ### 2. Physical Construction The VLB series utilizes a specialized structure to handle extreme current densities: * **Core Material:** Ferrite core, which offers high efficiency and low core losses at high frequencies. * **Termination:** Lead-free plating, compatible with standard reflow soldering processes. * **Form Factor:** A rectangular, low-profile package (10050 refers to the 10.0mm x 5.0mm footprint). --- ### 3. Application Use Cases This component is found in environments requiring high power delivery in a small footprint: * **Voltage Regulator Modules (VRM):** Used in CPU/GPU power delivery for servers and workstations. * **Point of Load (POL):** High-efficiency power conversion near the load to minimize voltage drops. * **Communication Equipment:** High-end routers and base stations requiring stable, high-amperage power rails. --- ### 4. Key Performance Characteristics 1. **Ultra-Low DCR:** With a DC resistance of only 0.19 mΩ, power loss through heat is minimized, leading to higher system efficiency. 2. **High Saturation Current:** The `R30` (0.3µH) rating allows for 85A of current before the inductance drops significantly, making it ideal for transient-heavy loads. 3. **Heat Resistance:** Designed to operate reliably in high-temperature environments often found in dense server racks.