The **FCR-5WG-R** is an electronic component primarily classified as a **Feedthrough Capacitor**. These components are specifically designed to filter high-frequency noise and electromagnetic interference (EMI) from power or signal lines while allowing lower-frequency currents to pass through. --- ### 1. Key Technical Specifications The following table summarizes the typical electronic characteristics for the FCR series (note that specific tolerances may vary by manufacturer, often Murata or Tusonix): | Parameter | Typical Value / Range | | :--- | :--- | | **Component Type** | Feedthrough Capacitor / EMI Filter | | **Capacitance** | Commonly 5,000pF to 10,000pF (Range dependent) | | **Rated Voltage** | 50V to 500V DC (application specific) | | **Current Rating** | 5A to 20A | | **Circuit Configuration** | C-Type Filter | | **Mounting Style** | Bolt-in / Threaded Case | | **Operating Temp** | -55°C to +125°C | --- ### 2. Functional Electronic Parts The FCR-5WG-R consists of several integrated sub-parts that enable its filtering capabilities: 1. **Ceramic Dielectric Tube:** The core of the device is a ceramic tube that acts as the capacitor's dielectric. 2. **Conductive Electrodes:** Silver or copper plating on the inner and outer surfaces of the ceramic tube forms the "plates" of the capacitor. 3. **Feedthrough Lead:** A solid metal pin (the "hot" line) that passes through the center of the tube. 4. **Metal Housing (Case):** A threaded brass or steel outer shell that serves as the ground terminal. When screwed into a metal chassis, it provides a low-impedance path to ground. 5. **Resin Seal:** An epoxy or glass seal at the ends to protect the internal ceramic from moisture and mechanical stress. --- ### 3. Electronic Schematic Representation In a circuit diagram, the FCR-5WG-R acts as a **shunt capacitor to ground**. Because it is a feedthrough type, it has virtually no lead inductance compared to a standard capacitor. ```text Input (Signal/Power) ----[ Feedthrough Pin ]---- Output | [ Capacitance ] | Ground (Threaded Case) ``` ### 4. Application Use Cases * **EMI/RFI Suppression:** Prevents radio frequency interference from entering or exiting sensitive equipment enclosures. * **DC Power Lines:** Used in power supplies to "clean" the DC voltage before it reaches sensitive ICs. * **Shielded Enclosures:** Installed on the walls of Faraday cages or metal boxes to maintain shielding integrity while allowing power to enter. ---