The **MLZ2012M1R5HT000** is a high-performance multilayer chip inductor manufactured by **TDK Corporation**. It is specifically designed for use in decoupling circuits and power supply lines, particularly in mobile devices where space and efficiency are critical. --- ### 1. Key Technical Specifications | Parameter | Value / Specification | |:---|:---| | **Inductance** | 1.5 µH | | **Tolerance** | ±20% | | **Rated Current (Max)** | 800 mA | | **DC Resistance (Max)** | 0.15 Ω (Typical: 0.12 Ω) | | **Self-Resonant Frequency** | 100 MHz (Minimum) | | **Operating Temperature** | -55°C to +125°C | | **Package Size (EIA/Metric)** | 0805 / 2012 (2.0mm x 1.25mm) | --- ### 2. Breakdown of Part Number Nomenclature Understanding the TDK part numbering system helps decode the part's characteristics: * **MLZ**: Multilayer Inductor for Power Lines (Z-Series). * **2012**: Physical dimensions ($2.0 \times 1.25$ mm). * **M**: Characteristic type (Standard/High Current). * **1R5**: Inductance value ($1.5$ microhenries). * **H**: Tolerance code ($\pm 20\%$). * **T000**: Packaging code (usually refers to Taping/Reel). --- ### 3. Structural and Functional Features #### A. Multilayer Technology Unlike traditional wire-wound inductors, this part is constructed by layering ceramic sheets and internal conductive patterns. This results in a **monolithic structure** that is highly reliable and has excellent magnetic shielding, reducing EMI (Electromagnetic Interference). #### B. DC Superposition Characteristics The MLZ series is engineered to maintain its inductance even when a high DC current is applied. In many inductors, the inductance "drops off" as current increases; the MLZ2012 is optimized to minimize this drop, ensuring stable circuit performance. #### C. Low DC Resistance (Rdc) By using advanced materials, TDK has lowered the internal resistance of the component. This leads to: * Less heat generation. * Improved battery life in portable electronics. * Higher efficiency in power conversion. --- ### 4. Common Applications * **Smartphones and Tablets**: Used in the decoupling of power lines for ICs. * **Digital Cameras**: Power supply filtering. * **Modules**: Bluetooth, Wi-Fi, and GPS modules where small form factors are required. * **Automotive (Non-Safety)**: Infotainment and navigation systems. ---