The part number **0603CS-R33XGLU** refers to a high-frequency, wire-wound surface mount (SMD) 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 The nomenclature reveals the specific characteristics of the component: | Segment | Value | Meaning | | :--- | :--- | :--- | | **0603** | Size | 0603 Package (1.6mm x 0.8mm) | | **CS** | Series | Ceramic core, wire-wound inductor | | **R33** | Inductance | 0.33 µH (330 nH) | | **X** | Tolerance | ±5% (Standard for this series) | | **G** | Termination | Gold over nickel over moly-manganese | | **L** | Packaging | 7″ machine-ready reel (Embossed tape) | | **U** | Testing | Standard testing | --- ### 2. Technical Specifications The **0603CS-R33XGLU** is designed for high-performance tuning and filtering. | Parameter | Specification | | :--- | :--- | | **Inductance** | 330 nH | | **Tolerance** | ±5% | | **Quality Factor (Q) Min** | 35 @ 100 MHz | | **SRF (Self Resonant Frequency) Typ** | 900 MHz | | **DCR (DC Resistance) Max** | 1.05 Ohms | | **Irms (Rated Current)** | 310 mA | | **Core Material** | Ceramic | | **Operating Temperature** | -40°C to +125°C | --- ### 3. Key Features and Applications * **Wire-Wound Construction:** Provides much higher Q-factors and current handling capabilities compared to multilayer chip inductors. * **Ceramic Core:** Ensures exceptional frequency stability and a high SRF, making it ideal for high-frequency signal processing. * **Applications:** * Cellular infrastructure (Base stations). * Wi-Fi and Bluetooth modules. * Broadband filtering and impedance matching networks. * High-frequency oscillators and VCOs. --- ### 4. Handling and Soldering * **Moisture Sensitivity:** Typically MSL 1 (Unlimited floor life). * **Soldering:** Compatible with lead-free reflow profiles. The gold termination (indicated by the "G") offers excellent solderability and prevents oxidation.