The **CE201210-R33J** is a surface-mount multi-layer ceramic chip inductor manufactured by **Bourns**. It is designed for high-frequency applications where miniaturization and reliability are critical. --- ### ## Technical Specifications The following table outlines the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.33 µH (330 nH) | | **Tolerance** | ±5% (indicated by the 'J') | | **Case Size (EIA)** | 0805 (Metric 2012) | | **Test Frequency** | 25 MHz | | **DC Resistance (DCR) Max** | 0.55 Ohms | | **Rated Current (Max)** | 300 mA | | **Self-Resonant Frequency (Min)** | 145 MHz | | **Operating Temperature** | -55°C to +125°C | --- ### ## Part Number Breakdown Understanding the nomenclature helps in identifying similar components within the series: 1. **CE**: Series prefix for Multi-layer Chip Inductors. 2. **2012**: Physical dimensions. 2.0 mm (length) x 1.2 mm (width), corresponding to the **0805** imperial size. 3. **10**: Indicates the thickness code (standard height). 4. **R33**: Inductance value. The 'R' acts as a decimal point ($0.33$ µH). 5. **J**: Tolerance code. $J = \pm 5\%$. --- ### ## Internal Construction & Features * **Monolithic Structure:** The device is built using a multi-layer process where internal electrodes are printed on ceramic layers and stacked to form a solid monolithic body. * **Magnetic Shielding:** Due to the closed magnetic circuit design, it offers excellent magnetic shielding, which minimizes EMI (Electromagnetic Interference) and crosstalk with neighboring components. * **Termination:** Usually features a nickel barrier with a tin (Sn) overcoat, making it highly solderable and resistant to soldering heat. --- ### ## Typical Applications The CE201210-R33J is commonly used in high-density PCB layouts, including: * **Mobile Communication:** Cell phones, pagers, and GPS modules. * **Signal Filtering:** High-frequency noise suppression and signal conditioning. * **WLAN/Bluetooth:** RF matching circuits and local oscillators. * **Consumer Electronics:** Digital cameras, laptops, and tablets.