The **CI201210-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 specifications based on the part numbering convention (typically associated with manufacturers like Bourns or Samsung). --- ### 1. Part Number Breakdown The alphanumeric code provides specific details about the component's physical size and electrical properties: | Segment | Code | Meaning | | :--- | :--- | :--- | | **Series** | CI | Multilayer Ceramic Inductor | | **Dimensions** | 201210 | 2.0mm x 1.25mm x 1.0mm (EIA 0805 Package) | | **Inductance** | R10 | 0.10 Microhenries (µH) or 100 Nanohenries (nH) | | **Tolerance** | J | ±5% | --- ### 2. Technical Specifications These values represent the standard performance profile for this specific inductor: | Property | Value | | :--- | :--- | | **Inductance** | 100 nH (0.10 µH) | | **Tolerance** | ±5% | | **Package Size (EIA)** | 0805 | | **Package Size (Metric)** | 2012 | | **Q Factor (Min)** | 10 - 15 (at 25MHz) | | **Self-Resonant Frequency** | ~250 MHz to 300 MHz | | **DC Resistance (DCR Max)** | 0.30 - 0.50 Ω | | **Rated Current (Max)** | 300 mA | --- ### 3. Key Features * **Multilayer Construction:** Uses a ceramic body with integrated internal silver electrodes, ensuring high reliability and a compact form factor. * **Magnetic Shielding:** The closed magnetic circuit minimizes crosstalk and electromagnetic interference (EMI) with neighboring components. * **Surface Mount Technology (SMT):** Designed for high-speed automated assembly lines. * **High Stability:** Offers excellent temperature stability and moisture resistance compared to wire-wound alternatives. ### 4. Common Applications 1. **Mobile Electronics:** Used in smartphones and tablets for RF (Radio Frequency) modules. 2. **EMI Suppression:** Filtering high-frequency noise in power supply lines. 3. **Communication Gear:** Bluetooth, Wi-Fi, and WLAN modules for signal matching. 4. **Computer Peripherals:** Local Area Network (LAN) cards and motherboards. ---