The part number **0603CS-R22XJRU** refers to a high-frequency ceramic core chip inductor manufactured by **Coilcraft**. This specific component is part of the 0603CS series, which is widely used in RF (Radio Frequency) applications. --- ### 1. Part Number Breakdown To understand the electronic characteristics, we can decode the part number suffix by suffix: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | 0603CS | Standard 0603 surface mount size (0.06 x 0.03 inches) | | **Inductance** | R22 | Value is **220 nH** (Nanohenries) | | **Tolerance** | J | **±5%** Tolerance | | **Termination** | R | Matte tin over nickel over silver-palladium-glass frit | | **Packaging** | U | 7″ machine-ready embossed plastic tape (standard reel) | --- ### 2. Key Technical Specifications Below are the typical electrical parameters for this specific 220 nH inductor: | Parameter | Value | | :--- | :--- | | **Inductance** | 220 nH @ 100 MHz | | **Tolerance** | ±5% | | **Q Factor (Min)** | 38 @ 250 MHz | | **SRF (Self-Resonant Frequency)** | 1150 MHz (Typical) | | **DCR (Direct Current Resistance)** | 1.05 Ohms (Max) | | **IDC (Maximum Rated Current)** | 250 mA | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Core Material and Construction * **Ceramic Core:** Unlike ferrite cores, ceramic cores provide no magnetic properties. This ensures the inductance remains stable across a wide temperature range and prevents saturation at high currents. * **Wirewound Design:** The "CS" series uses a wirewound construction, which offers significantly higher Q (Quality) factors and lower DC resistance compared to multilayer ceramic inductors. --- ### 4. Common Applications Due to its high Q factor and high SRF, this part is ideal for: 1. **Impedance Matching:** Used in the front-end of RF transceivers. 2. **Filter Circuits:** Low-pass, high-pass, and band-pass filters for wireless communication. 3. **Frequency Selection:** In oscillators and tuning circuits for Bluetooth, Wi-Fi, and LTE modules. --- ### 5. Footprint (Mechanical Data) The 0603 package is a standard surface-mount device (SMD) size: * **Length:** 1.6 mm (0.063") * **Width:** 0.8 mm (0.031") * **Height:** 0.8 mm (0.031")