The part number **54815** is most commonly associated with specialized connectivity components manufactured by **Molex**. Specifically, it refers to the **0.50mm Pitch Easy-On FFC/FPC Connectors**. Below is a detailed breakdown of the electronic specifications, features, and applications for this series. --- ### 1. Technical Specifications The 54815 series is a "Right-Angle, SMT, ZIF" (Zero Insertion Force) connector designed for high-density electronic packaging. | Feature | Specification | | :--- | :--- | | **Pitch** | 0.50 mm (Distance between pins) | | **Orientation** | Right Angle | | **Mounting Type** | Surface Mount (SMT) | | **Actuator Type** | Slider (ZIF - Zero Insertion Force) | | **Contact Position** | Top or Bottom (Depends on specific sub-model) | | **Voltage (Max)** | 50V AC/DC | | **Current (Max)** | 0.5A per contact | | **Durability** | 20 Mating Cycles | --- ### 2. Key Components & Materials To understand how these parts function, it is important to look at the materials used in their construction: * **Housing:** High-temperature thermoplastic (LCP), capable of withstanding lead-free reflow soldering processes. * **Contacts:** Phosphor Bronze with Gold or Tin-Bismuth plating to ensure low contact resistance and prevent oxidation. * **Actuator:** A sliding mechanism that locks the Flat Flexible Cable (FFC) into place, ensuring a secure mechanical and electrical connection without damaging the cable. --- ### 3. Common Applications These connectors are found in compact consumer electronics where space is at a premium and high-speed data transmission is required: 1. **Mobile Devices:** Connecting LCD screens or touch panels to the main PCB. 2. **Laptops/Tablets:** Internal wiring for keyboards, trackpads, and peripheral boards. 3. **Automotive:** Infotainment systems and dashboard displays. 4. **Medical Equipment:** Handheld diagnostic tools and monitoring screens. --- ### 4. Comparison: ZIF vs. Non-ZIF The 54815 series is a **ZIF** connector, which offers distinct advantages over cheaper alternatives: | Feature | ZIF (54815 Series) | Non-ZIF | | :--- | :--- | :--- | | **Wear and Tear** | Minimal (Cable slides in freely) | High (Friction during insertion) | | **Retention Force** | Very High (Locked by actuator) | Low (Relies on friction) | | **Assembly Ease** | Requires engaging a latch | Simple "push-in" | --- ### 5. Identification Example If you are looking at a full part number, it usually follows this format: `54815-XX19` * **54815**: Series Number. * **XX**: Number of circuits/pins (e.g., 54815-2019 has 20 pins). * **19**: Packaging/Plating code (usually Embossed Tape on Reel).