The **CSCM1256-R33M** is a high-current, surface-mount (SMD) power inductor. It is commonly used in DC-DC converters and voltage regulator modules (VRMs) to manage power distribution efficiently. --- ### 1. Technical Specifications The part number follows a standardized naming convention for power inductors. Below are the primary electrical and physical characteristics: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.33 µH (Microhenries) | | **Tolerance** | ±20% (indicated by 'M') | | **Inductor Type** | Shielded Power Inductor | | **Dimensions** | Approx. 12.5 x 12.5 x 6.0 mm | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Core Material** | Composite/Metal Alloy (High saturation) | --- ### 2. Breakdown of the Part Number * **CSCM**: Indicates the series code (typically associated with high-current composite molded inductors). * **1256**: Represents the physical size (Dimensions: ~12mm length, ~12mm width, ~6mm height). * **R33**: Represents the inductance value. 'R' acts as a decimal point, so R33 = **0.33 µH**. * **M**: Represents the inductance tolerance code (M = **±20%**). --- ### 3. Key Features * **High Saturation Current:** Designed to handle high peaks of current without the inductance dropping significantly. * **Magnetic Shielding:** The molded construction minimizes Electromagnetic Interference (EMI), which is crucial for densely packed circuit boards. * **Low DCR (DC Resistance):** Helps in reducing power loss and heat generation, increasing the overall efficiency of the power supply. * **Soft Saturation Characteristics:** Unlike ferrite cores that drop inductance sharply, these metal composite cores provide a gradual drop. --- ### 4. Typical Applications This component is widely used in high-performance electronics, including: 1. **Motherboards & Servers:** For CPU/GPU core power supply (Vcore). 2. **DC-DC Converters:** Buck, Boost, and Buck-Boost topologies. 3. **Graphic Cards:** Managing high-current power phases. 4. **Industrial Power Supplies:** Where high reliability and low noise are required.