The **CI160808-R22J** is a high-frequency multi-layer chip inductor commonly used in mobile communication devices and high-frequency circuits. It is manufactured by companies like **Bourns** or **Cyntec**. --- ### 1. Part Number Breakdown Understanding the alphanumeric code reveals the specific characteristics of the component: | Segment | Value | Meaning | | :--- | :--- | :--- | | **CI** | Series | Ceramic Inductor (Multi-layer type) | | **160808** | Size | 1.6mm x 0.8mm x 0.8mm (EIA 0603 Package) | | **R22** | Inductance | 0.22 µH (or 220 nH) | | **J** | Tolerance | ±5% | --- ### 2. Key Technical Specifications These parts are designed for low power loss and high stability at high frequencies. * **Inductance:** 220 nH (nanohenries). * **Tolerance:** ±5% (indicated by 'J'). * **Package Size:** 0603 (Imperial) / 1608 (Metric). * **Material:** Ceramic body with silver (Ag) internal electrode. * **Quality Factor (Q):** Typically optimized for frequencies above 100 MHz. * **Rated Current:** Usually ranges between 150mA to 300mA (model specific). * **DC Resistance (DCR):** Low resistance to minimize heat and power loss. --- ### 3. Application and Usage This component is primarily used in **RF (Radio Frequency)** sections of electronic devices. * **Impedance Matching:** Used in antenna circuits to ensure maximum power transfer. * **Filtering:** Acts as a low-pass or band-pass filter to remove noise. * **Resonance Circuits:** Combined with capacitors for LC oscillators. * **Common Devices:** Smartphones, Wi-Fi modules, Bluetooth headsets, and GPS receivers. --- ### 4. Typical Footprint (Dimensions) ```markdown Length (L): 1.60 ± 0.15 mm Width (W): 0.80 ± 0.15 mm Thickness: 0.80 ± 0.15 mm ```