The **FCR-FG-R** typically refers to a specific series of **FPC (Flexible Printed Circuit) / FFC (Flat Flexible Cable) Connectors**. These components are critical in modern electronics for connecting displays, touch panels, and internal boards in compact devices. ### 1. Key Technical Specifications The "FG-R" designation usually points to a **Right-Angle, Bottom-Contact** configuration with a specific pitch (often 0.5mm). | Feature | Specification | | :--- | :--- | | **Pitch** | Generally 0.5mm (high density) | | **Mounting Type** | SMT (Surface Mount Technology) | | **Orientation** | Right-Angle (Horizontal) | | **Contact Location** | Bottom Contact (connects to the underside of the cable) | | **Actuator Type** | Flip-lock / ZIF (Zero Insertion Force) | | **Material** | LCP (Liquid Crystal Polymer) Housing, Copper Alloy Contacts | --- ### 2. Internal Electronic Structure The connector consists of three primary electronic sub-components: 1. **Contact Pins:** Made of gold-plated or tin-plated copper alloy. These pins provide the electrical path between the PCB traces and the FFC/FPC cable. 2. **Solder Tabs (Nails):** Located at the ends of the connector. These do not transmit data but provide mechanical "anchoring" to the PCB to prevent the part from lifting during cable insertion. 3. **Insulator Body:** A high-temperature plastic (LCP) that prevents short-circuiting between the pins, which are spaced only fractions of a millimeter apart. --- ### 3. Connection Logic The "R" in the suffix often denotes **RoHS Compliance** or **Reel** packaging, but in the context of FCR-series architecture, it defines the following signal flow: * **ZIF Mechanism:** The "Zero Insertion Force" design means there is no friction when the cable is inserted. The electronic connection is only established once the **Flip-Lock** lever is pressed down. * **Wiping Action:** When the lock is engaged, the contacts "wipe" against the cable pads to remove oxidation, ensuring a low-resistance electrical path. --- ### 4. Implementation Example If you were integrating this into a circuit, your PCB footprint would look similar to this in a CAD tool: ```markdown # Typical Pad Layout (0.5mm Pitch) [ Pad 1 ] [ Pad 2 ] [ Pad 3 ] ... [ Pad N ] | 0.5mm | # Anchor Pads (Mechanical) [ Large SMT Pad ] [ Large SMT Pad ] ``` ---