The **CS160808-R22K** is a surface-mount (SMD) multilayer chip inductor, commonly used in high-frequency circuits and general signal conditioning. This part follows standard industry naming conventions for passive components. --- ### 1. Part Number Breakdown The part number can be decoded to understand its physical and electrical characteristics: | Code Segment | Meaning | Description | | :--- | :--- | :--- | | **CS** | Series Type | Multilayer Chip Inductor (Ceramic based). | | **160808** | Case Size (Metric) | Dimensions: 1.6mm x 0.8mm x 0.8mm (Equivalent to **0603** in Imperial). | | **R22** | Inductance Value | **0.22 µH** (220 nH). The 'R' acts as a decimal point. | | **K** | Tolerance | **±10%** deviation from the nominal inductance value. | --- ### 2. Key Technical Specifications Based on standard manufacturer datasheets for this series (like Bourns or Samsung), here are the typical electrical parameters: * **Inductance:** 0.22 µH (at a specific test frequency, usually 25 MHz). * **DC Resistance (DCR):** Low, typically between 0.35Ω and 0.50Ω. * **Rated Current:** Usually ranges from 150mA to 300mA. * **Self-Resonant Frequency (SRF):** High, typically above 250 MHz. * **Operating Temperature:** -55°C to +125°C. --- ### 3. Construction and Features * **Multilayer Technology:** Unlike wire-wound inductors, these are made by layering ceramic material and conductive paste, then firing them into a monolithic structure. * **Magnetic Shielding:** The closed magnetic circuit minimizes crosstalk and electromagnetic interference (EMI) with neighboring components. * **High Reliability:** No external wires to break; highly resistant to mechanical shock and vibration. --- ### 4. Common Applications Due to its small size and stable inductance, the CS160808-R22K is frequently found in: 1. **Mobile Devices:** Smart phones, tablets, and wearables. 2. **RF Circuits:** Matching networks and high-frequency filtering. 3. **EMI Suppression:** Used in power lines or signal lines to filter out high-frequency noise. 4. **Decoupling:** Preventing noise from one part of a circuit from affecting another.