## CTML0603-R56K: Technical Overview The **CTML0603-R56K** is a Multilayer Chip Inductor, commonly used in high-frequency circuits and surface-mount technology (SMT) applications. It is designed for compact electronic devices where space is at a premium and high performance is required. --- ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify the component's core specifications: | Segment | Code | Meaning | | :--- | :--- | :--- | | **Series** | CTML | Multilayer Chip Inductor | | **Size** | 0603 | Dimensions (0.06 x 0.03 inches or 1.6 x 0.8 mm) | | **Inductance** | R56 | 0.56 Microhenries ($\mu$H) | | **Tolerance** | K | ±10% | --- ### 2. Key Specifications The following table highlights the typical electrical characteristics for this part: | Property | Value | | :--- | :--- | | **Inductance** | 0.56 $\mu$H | | **Tolerance** | ±10% | | **Test Frequency** | 25 MHz | | **Rated Current (Max)** | ~100 mA - 150 mA (varies by manufacturer) | | **DC Resistance (Max)** | 0.70 $\Omega$ | | **Self-Resonant Frequency** | 100 MHz (Min) | | **Operating Temperature** | -55°C to +125°C | --- ### 3. Construction and Materials The "Multilayer" designation refers to the internal architecture of the component: * **Material:** Often ceramic or ferrite-based. Ferrite provides better inductance values in a small package. * **Electrodes:** Internal silver printing with a nickel and tin plating (Pb-free) for excellent solderability. * **Magnetic Shielding:** Because it is a multilayer structure, it is inherently magnetically shielded, reducing electromagnetic interference (EMI) and cross-talk between components. --- ### 4. Common Applications Due to its 0603 footprint and specific inductance, it is frequently found in: * **Mobile Communication:** Smartphones and tablets for signal filtering. * **Computer Peripherals:** Motherboards and high-speed data buses. * **RF Modules:** Impedance matching and resonance circuits. * **EMI Suppression:** Reducing noise in low-voltage power lines. --- ### 5. Footprint (Mechanical Data) ```text L: 1.60 ± 0.15 mm W: 0.80 ± 0.15 mm T: 0.80 ± 0.15 mm ```