The **MLZ2012M2R2HT000** is a multilayer chip inductor specifically designed for decoupling circuits in power lines. Manufactured by TDK, it belongs to the MLZ series, which features high-frequency characteristics and a low DC resistance. ### Technical Specifications | Parameter | Value | | :--- | :--- | | **Part Number** | MLZ2012M2R2HT000 | | **Inductance** | 2.2 µH | | **Tolerance** | ±20% | | **Case Size (EIA/JIS)** | 0805 / 2012 | | **Dimensions (L x W x T)** | 2.0mm x 1.25mm x 1.25mm | | **Rated Current (Isat/Itemp)** | 350 mA (Maximum) | | **DC Resistance (Rdc)** | 0.25 Ω (±30%) | | **Self-Resonant Frequency** | 80 MHz | | **Operating Temperature** | -55°C to +125°C | --- ### Key Features and Construction 1. **Multilayer Structure:** Unlike wire-wound inductors, this part is created by layering ceramic materials and internal electrodes. This results in a compact, rugged design with no external wires that could break or short. 2. **Magnetic Shielding:** The internal construction provides natural magnetic shielding, which minimizes electromagnetic interference (EMI) and prevents the inductor from affecting nearby sensitive components. 3. **Low DC Resistance:** The "M" type classification within the MLZ series indicates a focus on low Rdc, making it efficient for power management without significant heat loss. 4. **AEC-Q200 Compliance:** This specific part is often rated for automotive or high-reliability applications, meaning it can withstand harsh thermal and mechanical stress. ### Common Applications * **Mobile Devices:** Used in smartphones and tablets for power line decoupling. * **Automotive Electronics:** Suitable for Advanced Driver Assistance Systems (ADAS) and Infotainment due to its wide temperature range. * **DC-DC Converters:** Acts as a filtering element to smooth voltage ripples in low-power converters. --- ### Comparison with Similar Components | Feature | MLZ Series (Multilayer) | VLS Series (Wire-wound) | | :--- | :--- | :--- | | **Size** | Generally smaller/thinner | Larger footprints available | | **Current Handling** | Moderate (350mA) | High (up to several Amps) | | **Shielding** | Excellent (Fully enclosed) | Good (Resin coated/magnetic) | | **Cost** | Cost-effective for mass production | Generally higher |