The part number **75117-0118** refers to a specific high-density connector component manufactured by **Molex**. It belongs to the **VHDM-H-Series** (Very High Density Metric) backplane connector family. ### Technical Overview This component is an interface header typically used in telecommunications and data networking equipment to connect daughtercards to a backplane (motherboard). --- ### Key Specifications | Feature | Specification | | :--- | :--- | | **Manufacturer** | Molex | | **Product Family** | VHDM-H-Series (High Speed) | | **Component Type** | PCB Header (Pin Side) | | **Number of Columns** | 10 Columns | | **Number of Rows** | 8 Rows | | **Total Pins** | 80 Circuits | | **Pitch (Interface)** | 2.00 mm | | **Termination Style** | Through Hole - Press-Fit (Compliant Pin) | | **Plating** | Gold (mating side), Tin (termination side) | --- ### Electronic and Mechanical Characteristics #### 1. Signal Integrity The VHDM-H-Series is designed for high-speed signal applications. The "H" denotes the high-speed version, which includes integrated shielding to minimize crosstalk and manage electromagnetic interference (EMI) at high data rates. #### 2. Press-Fit Technology The pins use "eye-of-the-needle" compliant pin technology. This allows the connector to be pressed into the PCB without soldering, ensuring: * Reliable electrical contact. * Easier maintenance/replacement of the backplane. * Reduced thermal stress on the board compared to wave soldering. #### 3. High Density By utilizing an 8-row, 10-column grid, this part allows for high-density interconnects in a very small footprint, which is essential for modern server rack architecture. --- ### Common Applications * **Networking:** Routers, switches, and hubs. * **Computing:** High-end servers and storage area networks (SANs). * **Telecommunications:** Cellular base stations and central office switching equipment.