The **FLCS-20-R** is a specific model of a **Flat Cable Connector** (often referred to as an IDC or Ribbon Cable Connector) manufactured by companies like **Hirose** or **Kel**. These are primarily used for high-density board-to-cable connections. --- ### Technical Specifications Below are the typical electronic and mechanical characteristics of the FLCS series: | Parameter | Specification | | :--- | :--- | | **Number of Positions** | 20 Pins | | **Pitch** | 1.27mm (0.050") | | **Termination Method** | IDC (Insulation Displacement Connector) | | **Contact Material** | Copper Alloy | | **Plating** | Gold plating over Nickel (standard) | | **Current Rating** | 1.0A AC/DC | | **Voltage Rating** | 250V AC/DC | | **Operating Temp** | -55°C to +85°C | --- ### Key Components and Features #### 1. IDC Termination The "Electronic" core of this part lies in the **Insulation Displacement Contact**. This allows the connector to be pressed onto a flat ribbon cable without stripping the individual wires. The blades pierce the insulation to create a cold-weld connection with the internal copper strands. #### 2. Polarizing Key (The "R" Suffix) The **"R"** in the part number often denotes specific features depending on the manufacturer, but typically refers to: * **Right-angle** mounting orientation. * **Strain Relief** (Reinforcement to prevent the cable from being pulled out of the contacts). #### 3. Low Profile Design The FLCS series is designed for compact electronics. The 1.27mm pitch is significantly smaller than the standard 2.54mm (0.1") pitch found in older desktop computers, making it suitable for handheld devices and internal industrial sensors. --- ### Common Applications * **Internal Data Busses:** Connecting a motherboard to a peripheral (LCD, Sensor, or Drive). * **Industrial Automation:** Signal transmission between PLCs and I/O modules. * **Medical Equipment:** High-reliability signal routing in diagnostic tools. --- ### Comparison: FLCS vs. FFC Connectors While both handle flat cables, they differ electronically: | Feature | FLCS (Ribbon) | FFC (Flat Flex) | | :--- | :--- | :--- | | **Cable Type** | Multi-strand Round Wire | Flat copper traces on film | | **Durability** | High (Vibration resistant) | Moderate | | **Current Capacity** | Higher | Lower |