The **FLCS-22-R** is an electronic component primarily classified as a **low-profile, surface-mount (SMT) tactile switch** or a specific **FFC/FPC (Flexible Flat Cable) connector**, depending on the manufacturer (most commonly associated with connector series). Below is a breakdown of the technical aspects and electronic characteristics of this part. --- ### 1. General Specifications The FLCS series is designed for high-density electronic packaging where space is at a premium. | Feature | Description | | :--- | :--- | | **Component Type** | SMT Connector / Switch | | **Pin Count** | 22 Positions (indicated by the "22") | | **Mounting Type** | Surface Mount (SMT) / Right Angle | | **Pitch** | Typically 0.5mm or 1.0mm (standard for FPC) | | **Contact Material** | Phosphor Bronze with Gold or Tin plating | | **Orientation** | Horizontal (Right Angle) | --- ### 2. Key Electronic Characteristics When integrating the FLCS-22-R into a circuit, the following electrical parameters are critical: * **Current Rating:** Usually rated between **0.4A to 0.5A** per contact. * **Voltage Rating:** Typically **50V AC/DC**. * **Contact Resistance:** Max **30mΩ to 50mΩ** (ensures minimal signal loss). * **Insulation Resistance:** Minimum **500MΩ** at 100V DC. * **Dielectric Withstanding Voltage:** **250V AC** for one minute. --- ### 3. Physical Construction The "R" suffix in the part number often denotes **Reverse** mounting or **Right-angle** orientation, which dictates how the component sits on the PCB. * **Housing:** High-temperature thermoplastic (LCP - Liquid Crystal Polymer) to withstand reflow soldering temperatures. * **Actuator:** Flip-lock or slide-lock mechanism to secure the flexible cable. * **Solder Tabs:** Metal tabs on the sides provide mechanical strain relief to prevent the component from being ripped off the board during cable insertion. --- ### 4. Common Applications Due to its small footprint and 22-pin density, it is frequently found in: 1. **Mobile Devices:** Connecting LCD screens or camera modules to the main logic board. 2. **Laptops:** Keyboard or touchpad ribbon cable interfaces. 3. **Wearables:** Compact medical sensors or smartwatches. 4. **Automotive:** Dashboard displays and infotainment controls. --- ### 5. Implementation Code (Footprint Example) If you are designing a PCB in a tool like Altium or KiCad, the pin definition would follow a standard linear array: ```cpp // Pseudo-representation of a 22-pin FPC header mapping Connector_FLCS_22_R { Pin_Count: 22; Type: FPC_ZIF_Slider; Pitch: 0.5mm; Layout: [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22]; Shield: Ground_Tabs_Sides; } ```