The **CT1008LSCF-R27K** is a surface-mount (SMD) wire-wound chip inductor. It is designed for high-frequency applications where stability and high "Q" factors are required. Below is a detailed breakdown of its electronic specifications and characteristics. ### 1. Part Number Breakdown Understanding the nomenclature helps identify its core attributes: | Component | Code | Description | | :--- | :--- | :--- | | **Series** | CT1008LS | 1008 size (approx. 2.5 x 2.0 mm), Low Profile/Standard | | **Material** | CF | Ceramic Core (provides excellent high-frequency performance) | | **Inductance** | R27 | 0.27 µH (or 270 nH) | | **Tolerance** | K | ±10% | --- ### 2. Technical Specifications These parameters define the electrical behavior of the inductor in a circuit. | Parameter | Value | | :--- | :--- | | **Inductance** | 270 nH (0.27 µH) | | **Tolerance** | ±10% | | **Test Frequency** | 25 MHz | | **Quality Factor (Q) Min** | 45 @ 100 MHz | | **Self-Resonant Frequency (SRF)** | 600 MHz (Minimum) | | **DC Resistance (DCR) Max** | 0.91 Ω | | **Rated DC Current (Idc)** | 450 mA | --- ### 3. Key Features * **Ceramic Core:** Unlike ferrite cores, ceramic cores do not saturate and offer very high SRF (Self-Resonant Frequency), making them ideal for RF (Radio Frequency) applications. * **Wire-Wound Construction:** This provides significantly lower DC resistance and higher current handling compared to multilayer chips of the same size. * **High Q Factor:** Ensures low signal loss in resonant circuits and filters. --- ### 4. Common Applications Due to its high-frequency characteristics, the CT1008LSCF-R27K is typically used in: 1. **RF Impedance Matching:** Used in wireless communication devices to match antenna impedance. 2. **Filter Circuits:** Low-pass, high-pass, and band-pass filters for signal processing. 3. **Oscillators:** Providing stable inductance for frequency generation. 4. **Bluetooth/Wi-Fi Modules:** Decoupling and signal integrity in compact consumer electronics. --- ### 5. Footprint (Package Size) The **1008** designation refers to the Imperial dimensions: * **Length:** 0.10 inches (2.5 mm) * **Width:** 0.08 inches (2.0 mm) * **Height:** Usually around 1.6 mm to 2.0 mm depending on the specific "LS" (Low Profile) variation. ---