The part number **0603CS-R22XGLW** refers to a high-frequency wire-wound chip inductor manufactured by **Coilcraft**. This specific component is part of their "CS" series, known for high Q factors and tight tolerances in RF applications. --- ### 1. Part Number Breakdown Understanding each character in the part number reveals the component's specific characteristics: | Code Segment | Meaning | Specification | | :--- | :--- | :--- | | **0603** | Case Size | 0.06 x 0.03 inches (1.6 x 0.8 mm) | | **CS** | Series | Ceramic core, wire-wound inductor | | **-R22** | Inductance | 220 nH (R denotes decimal point in µH) | | **X** | Tolerance | ±5% (Standard Gold-plated/Silver-plated) | | **G** | Termination | Gold over nickel over moly-manganese | | **L** | Packaging | Tape & Reel (typically 7" reel) | | **W** | Environment | Halogen-free, RoHS compliant | --- ### 2. Technical Specifications These are the typical electrical parameters for the **R22 (220 nH)** variant: * **Inductance:** 220 nH * **Tolerance:** ±5% * **Quality Factor (Q) Min:** 25 at 100 MHz * **Self-Resonant Frequency (SRF) Typ:** 950 MHz * **DC Resistance (DCR) Max:** 2.10 Ohms * **Isat (Saturation Current):** 200 mA --- ### 3. Key Features and Materials * **Wire-Wound Construction:** Unlike multilayer inductors, wire-wound versions offer much higher Q factors and lower DC resistance, making them ideal for signal integrity. * **Ceramic Core:** The non-magnetic ceramic core ensures high thermal stability and maintains inductance across a wide frequency range. * **Small Footprint:** The 0603 package is standard for high-density PCB designs in mobile and communication devices. --- ### 4. Common Applications Due to its high frequency performance, this part is typically found in: * **RF Impedance Matching:** Used in antenna circuits for smartphones and Wi-Fi modules. * **Filter Circuits:** Band-pass, low-pass, and high-pass filters. * **VCOs:** Voltage Controlled Oscillators in wireless communication. * **Bluetooth/Zigbee:** Tuning and matching for low-power wireless protocols.