The part number **745-068-525-106** refers to a high-reliability **Card Edge Connector** manufactured by **EDAC Inc.** These connectors are primarily used to connect Printed Circuit Boards (PCBs) to a backplane or motherboard. --- ### 1. Technical Specifications The following table breaks down the core technical parameters of this specific component: | Parameter | Specification | | :--- | :--- | | **Manufacturer** | EDAC Inc. | | **Series** | 745 Series | | **Connector Type** | Card Edge, Female (Dual Edge) | | **Number of Positions** | 68 (34 per side) | | **Pitch (Spacing)** | 0.156" (3.96mm) | | **Contact Material** | Copper Alloy | | **Contact Plating** | Gold (Contact area) over Nickel | | **Mounting Type** | Through Hole, Right Angle | | **Housing Material** | Thermoplastic Polyester (UL 94V-0) | | **Current Rating** | 3 Amps per contact | --- ### 2. Key Design Features * **Dual Row Configuration:** The "068" in the part number indicates 68 total contacts, arranged in two rows of 34. This allows for high-density signal transfer. * **Card Slot Depth:** Designed to accept a standard 0.062" (1.57mm) thick PC board. * **Contact Termination:** This specific model features **Wire Wrap** or PC tail leads, designed for permanent mounting on a motherboard via soldering. * **Durability:** The use of gold plating on the contact mating area ensures low contact resistance and prevents oxidation over time, which is critical for industrial applications. --- ### 3. Application Use Cases This type of connector is typically found in legacy systems or specialized industrial hardware: 1. **Industrial Control Systems:** Used to plug modular daughtercards into a main control rack. 2. **Telecommunications:** Employed in switching equipment for modular line cards. 3. **Test Equipment:** Often used in burn-in boards or automated test equipment (ATE) where frequent insertion/removal of boards occurs. 4. **Retro-Computing:** Found in vintage computer architectures (like early bus systems) where 0.156" pitch was a standard. --- ### 4. Part Number Breakdown (Example) * **745:** Series designation (Standard Card Edge). * **068:** Total number of contacts. * **525:** Contact code (Determines tail length and plating). * **106:** Mounting option (Determines the type of mounting ears or holes on the plastic housing).