The **CTC2F-R047M** is a specific part number for a **Surface Mount Inductor**, typically belonging to a series of fixed-chip inductors. These components are essential for managing electrical current and filtering noise in electronic circuits. Below is a detailed breakdown of its specifications and functions. --- ### 1. Technical Specifications The part number follows a standardized naming convention where each character represents a specific attribute. | Attribute | Specification | Description | | :--- | :--- | :--- | | **Component Type** | Fixed Inductor | Passive component that stores energy in a magnetic field. | | **Inductance Value** | 0.047 µH (47 nH) | "R047" denotes the decimal point and value in microhenries. | | **Tolerance** | ±20% | Represented by the suffix "M". | | **Mounting Style** | SMD / SMT | Surface Mount Device for automated assembly. | | **Case Size** | 2-Series (e.g., 1008 or 1210) | Varies slightly by manufacturer, usually a small footprint. | --- ### 2. Physical Characteristics The "2F" series generally refers to a molded or wire-wound construction designed for durability. * **Construction:** Wire-wound core, often encapsulated in a flame-retardant epoxy resin or ceramic body. * **Terminations:** Solder-plated (usually lead-free/RoHS compliant) to ensure strong mechanical and electrical bonding to the PCB. * **Size:** Compact design suitable for high-density circuit boards. --- ### 3. Key Electrical Parameters While exact values can vary slightly between manufacturers (like Central Technologies or Coilcraft), a 0.047µH inductor typically features: 1. **High Self-Resonant Frequency (SRF):** Due to the low inductance value, this part is capable of operating at very high frequencies (VHF/UHF). 2. **Low DC Resistance (DCR):** Minimizes power loss and heat generation during operation. 3. **Rated Current:** Designed to handle specific milliamps (mA) without reaching magnetic saturation. --- ### 4. Applications The CTC2F-R047M is primarily used in high-frequency applications where small inductance values are required for signal integrity. * **RF Tuning:** Used in wireless communication devices for impedance matching. * **Filtering:** Acting as a Low Pass Filter (LPF) to remove high-frequency noise from a power line. * **Decoupling:** Preventing cross-talk between different stages of a high-speed circuit. * **Oscillators:** Used in timing circuits for consumer electronics. ---