The **CTML0603-R56M** is a surface-mount multilayer chip inductor. This specific component is designed for high-density circuits, providing inductance in a very small physical footprint. ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify the component's specifications: | Segment | Value | Meaning | | :--- | :--- | :--- | | **CTML** | Series | Multilayer Chip Inductor | | **0603** | Size | Imperial dimensions (0.06 x 0.03 inches / 1.6 x 0.8 mm) | | **R56** | Inductance | 0.56 microhenries ($\mu H$) | | **M** | Tolerance | $\pm 20\%$ | --- ### 2. Key Technical Specifications Below are the typical electrical and physical characteristics for this part: * **Inductance:** $0.56 \mu H$ * **DC Resistance (DCR):** Usually ranges between $0.40\Omega$ to $0.70\Omega$ (depending on the specific manufacturer). * **Rated Current:** Typically around $150mA$ to $250mA$. * **Self-Resonant Frequency (SRF):** High frequency performance, often above $100 MHz$. * **Operating Temperature:** $-55^{\circ}C$ to $+125^{\circ}C$. --- ### 3. Construction and Features * **Multilayer Technology:** Unlike wire-wound inductors, this is built using a monolithic structure (layers of ceramic and conductive paste fired together). This makes it highly reliable and provides excellent magnetic shielding. * **Magnetic Shielding:** The closed magnetic circuit minimizes crosstalk and EMI (Electromagnetic Interference), allowing for high-density placement on PCBs. * **Solderability:** Features nickel barrier terminations with a tin plating layer to prevent leaching during the soldering process. --- ### 4. Typical Applications The CTML0603 series is generally found in small consumer electronics where space is a premium: 1. **Mobile Devices:** Smartphones and tablets for power supply decoupling. 2. **RF Circuits:** Matching and filtering in low-power wireless modules. 3. **Computers:** Noise suppression in motherboards and high-speed data lines. ---