The **MLZ2012M330W** is a multilayer inductor specifically designed for decoupling circuits in power lines. It is manufactured by **TDK Corporation**. This component belongs to the MLZ series, which is optimized for high current and low DC resistance. ### 1. Key Technical Specifications | Parameter | Value | | :--- | :--- | | **Inductance** | 33 $\mu$H | | **Inductance Tolerance** | $\pm$20% | | **Rated Current (Max)** | 80 mA | | **DC Resistance (Max)** | 1.3 $\Omega$ | | **Self-Resonant Frequency (Min)** | 15 MHz | | **Operating Temperature Range** | -55°C to +125°C | | **Case Size (EIA/Metric)** | 0805 / 2012 (2.0mm x 1.25mm) | --- ### 2. Main Characteristics * **Multilayer Structure:** Unlike wire-wound inductors, this part is built by layering ceramic materials and internal electrodes. This results in a compact, robust, and highly reliable component. * **Broad Inductance Range:** The MLZ series is unique because it offers higher inductance values (like 33 $\mu$H) in small 0805 packages compared to standard multilayer power inductors. * **Decoupling Efficiency:** It is specifically engineered to provide high impedance over a wide frequency range, making it ideal for removing noise from DC power lines. --- ### 3. Physical Dimensions (2012 Metric) | Dimension | Measurement (mm) | | :--- | :--- | | **Length (L)** | 2.00 $\pm$ 0.20 | | **Width (W)** | 1.25 $\pm$ 0.20 | | **Thickness (T)** | 1.25 $\pm$ 0.20 | --- ### 4. Typical Applications The MLZ2012M330W is commonly used in portable electronic devices where space is limited but noise suppression is critical: * **Smartphones and Tablets:** Decoupling power lines for camera modules or display panels. * **Wearable Devices:** High-density PCB layouts requiring small footprint components. * **HDD/SSD:** Managing power rail noise to ensure data integrity. ### 5. Part Number Breakdown ```text MLZ 2012 M 330 W | | | | | | | | | +-- Internal Code (Packaging/Special Specs) | | | +----- Inductance Value (330 = 33 x 10^0 = 33µH) | | +-------- Characteristic Type (M: Standard/Decoupling) | +------------- Dimensions (2.0mm x 1.25mm) +------------------ Series Name (Multilayer Inductor for Power Lines) ```