The **38BIS8-0-R** is a specific electronic component, typically categorized as a **Surface Mount Device (SMD) Power Inductor**. These components are widely used in power management circuits to manage energy storage and filter noise. --- ### 1. Key Technical Specifications Based on the standard nomenclature for this series, here are the general technical parameters: | Parameter | Specification (Typical) | | :--- | :--- | | **Component Type** | Shielded SMD Power Inductor | | **Inductance Range** | Varies by sub-model (often denoted by the "8-0" suffix) | | **Core Material** | Ferrite | | **Shielding** | Magnetically Shielded (reduces EMI) | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Operating Temp** | -40°C to +125°C | --- ### 2. Breakdown of the Part Number While naming conventions can vary slightly between manufacturers (such as Sumida, Chilisin, or others), the code usually breaks down as follows: * **38**: Refers to the physical dimensions (e.g., approximately 3.8mm or a specific form factor). * **BIS**: Series identifier (often indicating a high-current, low-profile design). * **8-0**: Generally represents the inductance value or a specific design revision. * **R**: Typically indicates "RoHS Compliant" or "Tape & Reel" packaging. --- ### 3. Function and Applications The 38BIS8-0-R serves several critical roles in an electronic assembly: #### A. Energy Storage In DC-DC converters (Buck or Boost converters), the inductor stores energy in its magnetic field during the "on" cycle and releases it during the "off" cycle to provide a steady output voltage. #### B. Noise Filtration It acts as a low-pass filter, allowing DC current to pass while blocking high-frequency AC noise, which protects sensitive components like microprocessors. #### C. Common Use Cases: * **Mobile Devices:** Smartphones and tablets where space is limited. * **Computing:** Power modules for laptops and servers. * **Consumer Electronics:** LED drivers and portable media players. --- ### 4. Physical Characteristics * **Shielding:** The "Shielded" nature means the magnetic flux is contained within the component. This is vital for high-density PCB layouts where components are close together, as it prevents interference with neighboring traces. * **Footprint:** Small form factor designed for automated pick-and-place assembly.