The **MPT750-R56H1** is a high-performance, surface-mount (SMD) **Molded Power Inductor**. It is primarily designed for high-current power supply circuits, such as DC-DC converters, where efficiency and compact size are critical. --- ### 1. Key Technical Specifications Based on the part number nomenclature, here are the primary electrical characteristics: | Parameter | Value / Specification | |:---|:---| | **Inductance** | 0.56 µH (indicated by "R56") | | **Tolerance** | ±20% (Standard for this series) | | **Footprint / Size** | 750 Series (Approx. 7.5mm x 7.0mm) | | **Core Material** | Metal Alloy / Carbonyl Powder (Molded) | | **Operating Temp** | -40°C to +125°C (including self-heating) | --- ### 2. Physical and Structural Parts The "MPT" series utilizes a **Molded Construction** which differs from traditional wire-wound inductors. 1. **Magnetic Metal Powder Core:** The coil is embedded directly into a metallic magnetic powder. This allows for a "soft saturation" characteristic, meaning the inductance doesn't drop abruptly when current increases. 2. **Flat Internal Coil:** Often uses flat copper wire to minimize DC Resistance (DCR) and improve heat dissipation. 3. **Shielding:** The molded body acts as a natural magnetic shield, significantly reducing Electromagnetic Interference (EMI). 4. **Terminals:** Lead-free (RoHS compliant) solder pads integrated into the base of the molded body. --- ### 3. Applications and Use Cases The MPT750-R56H1 is commonly used in high-frequency switching environments: * **Voltage Regulator Modules (VRMs):** Found in servers and high-end PCs. * **Point of Load (POL) Converters:** Converting a main power rail to a lower voltage for CPUs or GPUs. * **Battery Powered Devices:** Used in tablets or laptops where low-profile components are required. * **Automotive Electronics:** (If Grade 1 or 0 certified) used in infotainment or ADAS systems. --- ### 4. Comparison: Molded vs. Traditional Inductors | Feature | Molded Inductor (MPT750) | Traditional Shielded Inductor | |:---|:---|:---| | **Acoustic Noise** | Very Low (No coil vibration) | Can exhibit "buzzing" | | **Saturation** | Soft (Gradual) | Hard (Sudden drop) | | **EMI Shielding** | Excellent (Integrated) | Moderate | | **Size/Profile** | Ultra-Low Profile | Generally Taller | --- ### Summary of "R56H1" Suffix * **R56**: Represents the Inductance value ($0.56 \text{ }\mu\text{H}$). * **H1**: Usually refers to a specific production series or a height variation (e.g., 5.0mm height) depending on the specific manufacturer's catalog (likely **ITG Electronics** or similar).