The **CT1008LSCF-R56J** is a surface-mount (SMD) wire-wound chip inductor. It belongs to the 1008 series (referring to its physical dimensions) and is designed for high-frequency applications where high Q-factors and stable inductance are required. --- ### ## Technical Specifications Below are the primary electrical and physical characteristics of the component: | Parameter | Specification | | :--- | :--- | | **Inductance** | 0.56 µH (560 nH) | | **Tolerance** | ±5% (indicated by 'J') | | **Test Frequency** | 25.2 MHz | | **Quality Factor (Q) Min** | 45 @ 100 MHz | | **Self-Resonant Frequency (SRF)** | 375 MHz (Minimum) | | **DC Resistance (DCR) Max** | 1.33 Ω | | **Rated Current (Max)** | 400 mA | | **Operating Temperature** | -40°C to +125°C | --- ### ## Part Number Breakdown Understanding the nomenclature helps in identifying variants of this component: 1. **CT**: Central Technologies (Manufacturer prefix). 2. **1008**: Package size (approx. 0.10 x 0.08 inches or 2.5 x 2.0 mm). 3. **LS**: Low Profile / Standard series designation. 4. **CF**: Ceramic Core / Ferrite (specifically "Ceramic Form" for high-frequency stability). 5. **R56**: Resistance/Inductance value. `R` acts as a decimal point ($0.56$ µH). 6. **J**: Tolerance code ($J = \pm5\%$). --- ### ## Key Features and Construction * **Wire-Wound Design:** Unlike multilayer inductors, wire-wound types offer much higher Q-factors and lower DC resistance, making them more efficient for power handling and signal purity. * **Ceramic Core:** The use of a ceramic body ensures excellent thermal stability and a high self-resonant frequency, which is critical for RF (Radio Frequency) applications. * **Encapsulation:** Often features a liquid crystal polymer (LCP) or epoxy coating on top to allow for vacuum pick-and-place assembly. --- ### ## Common Applications This specific inductor is typically found in: * **RF Transceivers:** Used in matching circuits for antennas. * **Wireless Communication:** Bluetooth, Wi-Fi, and cellular modules. * **Filters:** High-pass, low-pass, and band-pass filter networks. * **Oscillators:** Providing stable frequency references in VCOs (Voltage Controlled Oscillators).