The **VLB10050HT-R15M** is a high-performance, surface-mount (SMD) power inductor manufactured by **TDK**. It is specifically designed for high-current applications such as voltage regulator modules (VRMs) in servers and computing hardware. --- ### 1. Technical Specifications | Parameter | Value | Details | | :--- | :--- | :--- | | **Inductance** | 0.15 µH | ±20% tolerance | | **Rated Current (Isat)** | 105 A | Current at which inductance drops by 20% | | **Rated Current (Itemp)** | 52 A | Current causing a 40°C temperature rise | | **DC Resistance (DCR)** | 0.19 mΩ | Typical (extremely low for efficiency) | | **Dimensions (L x W x H)** | 10.0 x 5.0 x 5.0 mm | Compact footprint for high power density | | **Operating Temperature** | -40°C to +125°C | Including self-heating | --- ### 2. Structural Characteristics * **Core Material:** Ferrite core. This material provides stable performance at high frequencies and low core loss. * **Winding Technology:** It utilizes a flat wire or large cross-section conductor to achieve the incredibly low DC Resistance (DCR), which minimizes power loss through heat. * **Construction:** The "HT" in the part number often signifies a high-temperature or high-reliability series, featuring a robust structure to withstand reflow soldering and thermal cycling. --- ### 3. Key Electronic Features 1. **Ultra-High Saturation Current:** With an $I_{sat}$ of **105A**, this inductor is designed to handle massive current spikes without the core saturating, which is critical for protecting power stages in CPUs and GPUs. 2. **High Efficiency:** The 0.19 mΩ DCR is one of the lowest in its class, reducing $I^2R$ losses and increasing the overall efficiency of the DC-DC converter. 3. **Low Profile/Small Footprint:** Despite its massive current capability, it maintains a small 10x5mm footprint, allowing for multi-phase designs where space is at a premium. --- ### 4. Common Applications * **Server/Data Centers:** Used in VRMs (Voltage Regulator Modules) for high-end processors. * **Graphics Cards:** Powering high-performance GPUs. * **Point of Load (POL) Converters:** High-speed switching power supplies requiring high current and low inductance.