The **MLZ2012M1R0HTD25** is a high-performance multilayer ferrite chip inductor manufactured by **TDK Corporation**. It belongs to the MLZ series, which is specifically designed for decoupling circuits in power supply lines. --- ### 1. Technical Specifications The following table highlights the primary electrical and physical characteristics of this component: | Parameter | Value / Specification | | :--- | :--- | | **Inductance** | 1.0 $\mu$H | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | 0.15 $\Omega$ (Max) | | **Rated Current (Isat/Itemp)** | 700 mA | | **Self-Resonant Frequency** | 100 MHz | | **Case Size (EIA/Metric)** | 0805 / 2012 | | **Dimensions (L x W x T)** | 2.00mm x 1.25mm x 1.25mm | | **Operating Temperature** | -55°C to +125°C | --- ### 2. Key Features * **Multilayer Ferrite Structure:** Unlike wire-wound inductors, the multilayer process allows for a compact, magnetically shielded design that minimizes electromagnetic interference (EMI). * **Low DC Resistance:** Optimized for power lines to ensure minimal power loss and voltage drop. * **High Current Handling:** Designed to maintain stable inductance even when significant DC current is applied (low saturation characteristics). * **AEC-Q200 Qualified:** This specific part number is often used in automotive environments, meeting rigorous stress-test requirements. --- ### 3. Application Use Cases This inductor is typically used in the following scenarios: 1. **Power Supply Decoupling:** Used in the power lines of ICs to filter out high-frequency noise. 2. **Mobile Devices:** Ideal for smartphones and tablets where board space is at a premium. 3. **Automotive Infotainment:** Suitable for car navigation and audio systems due to its temperature stability and reliability. 4. **DC-DC Converters:** Acts as a storage or filter element in low-power voltage regulation circuits. --- ### 4. Part Number Breakdown `MLZ` `2012` `M` `1R0` `H` `T` `D25` * **MLZ:** Series Name (Multilayer Inductor for Power Line). * **2012:** Dimensions (2.0mm x 1.2mm). * **M:** Characteristic Type (Standard). * **1R0:** Inductance Value (1.0 $\mu$H). * **H:** High current handling designation. * **T:** Packaging (Taping/Reel). * **D25:** Internal TDK control/design code.