The **CT1206CSF-R27M** is a surface-mount (SMD) wire-wound chip inductor designed for high-frequency applications. Below is a detailed breakdown of its electronic specifications and characteristics. ### 1. Component Overview The part number follows a standard nomenclature used by manufacturers like **Central Technologies**. | Feature | Specification | | :--- | :--- | | **Component Type** | Wire-wound Chip Inductor | | **Package Size** | 1206 (3.2mm x 1.6mm) | | **Inductance** | 0.27 µH (270 nH) | | **Tolerance** | ±20% (indicated by 'M') | | **Core Material** | Ceramic | --- ### 2. Key Technical Parameters Wire-wound ceramic inductors are preferred for RF (Radio Frequency) circuits due to their high precision and low energy loss. * **Self-Resonant Frequency (SRF):** Usually very high (typically > 600 MHz for this value), making it suitable for high-frequency filtering and matching. * **Quality Factor (Q):** High Q-factor ensures low signal loss in resonant circuits. * **Current Rating (I-dc):** Typically ranges between 300mA to 600mA depending on the specific series iteration. * **DC Resistance (DCR):** Low resistance to minimize heat dissipation and voltage drop. --- ### 3. Part Number Breakdown Understanding the suffix codes helps in identifying the exact variant: | Code | Meaning | | :--- | :--- | | **CT** | Manufacturer Series (Central Technologies) | | **1206** | Physical dimensions: 0.12 x 0.06 inches | | **CSF** | Ceramic Substrate / Standard Ferrite/Wire-wound | | **R27** | Inductance value: 0.27 µH | | **M** | Tolerance: ±20% | --- ### 4. Common Applications Due to its 1206 footprint and ceramic core, this part is commonly used in: * **RF Transceivers:** Used in impedance matching and signal tuning. * **Filters:** Low-pass and high-pass filters for telecommunications. * **Oscillators:** Stability in frequency generation circuits. * **Mobile Devices:** Bluetooth, Wi-Fi, and GPS modules where small footprints are required. --- ### 5. Footprint (1206 Metric) ```markdown Dimensions: Length: 3.20 mm (±0.2mm) Width: 1.60 mm (±0.2mm) Height: 1.10 mm - 1.60 mm (typical) ```