The **MLZ2012N2R2LTD25** is a high-performance multilayer chip inductor manufactured by **TDK Corporation**. It is specifically designed for use in decoupling circuits of power lines to suppress noise in mobile devices and consumer electronics. --- ### 1. General Specifications Below are the primary technical parameters for this specific part number: | Parameter | Value | | :--- | :--- | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% | | **Rated Current** | 150 mA | | **DC Resistance (Max)** | 0.23 Ω | | **Case Size (EIA)** | 0805 | | **Case Size (Metric)** | 2012 (2.0mm x 1.25mm) | | **Thickness** | 1.25 mm | | **Operating Temperature** | -55°C to +125°C | --- ### 2. Part Number Breakdown Understanding the nomenclature helps in identifying the component's characteristics: * **MLZ**: Series name (Multilayer Inductor for Power Lines). * **2012**: Dimensions (2.0mm length x 1.25mm width). * **N**: Internal Classification code. * **2R2**: Inductance value (2.2 microhenries). * **L**: Tolerance (L = ±20%). * **T**: Packaging style (Taping/Reel). * **D25**: TDK internal characteristic or characteristic improvement code. --- ### 3. Key Features and Advantages * **Multilayer Structure:** Unlike wire-wound inductors, the multilayer process allows for a smaller footprint and better reliability against mechanical stress. * **Decoupling Efficiency:** It features low DC resistance (RDC) while maintaining high impedance in the MHz range, making it ideal for filtering power supply noise. * **High Current Handling:** Compared to standard signal-line inductors, the MLZ series is optimized to handle the higher currents found in power management IC (PMIC) lines. * **Magnetic Shielding:** The closed magnetic circuit structure prevents electromagnetic interference (EMI) from leaking out and affecting adjacent components. --- ### 4. Common Applications This inductor is typically used in the following circuits: 1. **Mobile Phones:** Decoupling power lines for application processors and camera modules. 2. **Portable Electronics:** Tablets, smartwatches, and portable gaming consoles. 3. **Noise Suppression:** General EMI/RFI filtering in DC-DC converter outputs.