The **CE201210-R10J** is a surface-mount multilayer ceramic chip inductor. It is commonly used in high-frequency circuits for noise filtering, signal processing, and impedance matching. Below is a detailed breakdown of its electronic specifications and naming conventions. --- ### 1. Technical Specifications The part number follows a standardized nomenclature used by manufacturers like Bourns or Taiyo Yuden. | Parameter | Specification | Details | | :--- | :--- | :--- | | **Inductance** | 0.10 µH (100 nH) | "R10" indicates the decimal point (0.10) | | **Tolerance** | ±5% | "J" denotes the tolerance level | | **Package Size** | 0805 (Metric 2012) | 2.0mm x 1.25mm | | **Material** | Multilayer Ceramic | Ideal for high-frequency stability | | **Mounting Type** | SMD/SMT | Surface Mount Technology | --- ### 2. Part Number Breakdown Understanding the alphanumeric code helps in identifying the component's physical and electrical characteristics: * **CE**: Series prefix (typically referring to Multilayer Chip Inductors). * **2012**: The physical dimensions in metric millimeters (2.0mm length x 1.25mm width). This corresponds to the **0805** imperial size. * **10**: Indicates the thickness code (1.0mm). * **R10**: The Inductance value. The "R" acts as a decimal point. $R10 = 0.10 \mu H$. * **J**: The tolerance code. $J = \pm5\%$, $K = \pm10\%$, $M = \pm20\%$. --- ### 3. Key Applications These inductors are designed for low-power, high-frequency environments: 1. **RF Circuits:** Used in impedance matching for antennas in mobile phones and Wi-Fi modules. 2. **EMI Suppression:** Filtering high-frequency noise in digital signal lines. 3. **Local Oscillators:** Providing stable inductance for frequency generation. 4. **Consumer Electronics:** Found in tablets, laptops, and wearable technology due to its small footprint. --- ### 4. Comparison with Wire-wound Inductors Compared to wire-wound alternatives, the CE201210 series offers specific advantages: | Feature | Multilayer (CE201210) | Wire-wound Inductor | | :--- | :--- | :--- | | **Size** | Smaller, compact | Larger, bulkier | | **Cost** | Generally lower | Higher | | **Q-Factor** | Moderate | Very High | | **Current Rating** | Lower | Higher | ---