The part number **48SV2-GVHDT-R** typically refers to a high-density, vertical, shielded **VHDCI (Very High Density Cable Interconnect)** connector or a specialized board-to-board interconnect often used in industrial automation, telecommunications, or high-speed data acquisition systems. Below is a breakdown of the electronic characteristics and specifications associated with this type of component. --- ### 1. General Specifications | Feature | Description | | :--- | :--- | | **Connector Type** | VHDCI (Very High Density Cable Interconnect) | | **Orientation** | Vertical / Straight | | **Shielding** | Fully Shielded (Metal Shell) | | **Mounting Type** | Through-hole or SMT (Depending on specific footprint) | | **Contact Plating** | Gold (usually 15µ" or 30µ" for high reliability) | | **Pitch** | 0.8mm (Standard for VHDCI) | ### 2. Key Internal Components & Materials * **Housing:** High-temperature thermoplastic (LCP or PBT), capable of withstanding reflow soldering temperatures. * **Contacts:** Copper alloy base with gold plating on the contact area to prevent oxidation and ensure low contact resistance. * **Shell:** Nickel-plated steel or copper alloy for EMI/RFI protection and mechanical grounding. * **Board Locks:** Mechanical features (clips or threaded inserts) to secure the part to the PCB during vibration. ### 3. Electrical Characteristics * **Current Rating:** Typically 0.5A per contact. * **Voltage Rating:** 30V AC (RMS). * **Dielectric Withstanding Voltage:** 500V AC for 1 minute. * **Insulation Resistance:** 500 MΩ minimum. * **Contact Resistance:** 35 mΩ maximum. ### 4. Common Applications Due to the high pin density and shielding, these parts are frequently used in: 1. **SCSI Interfaces:** Older high-speed storage arrays. 2. **DAQ Cards:** National Instruments and other data acquisition hardware often use VHDCI for multi-channel I/O. 3. **Networking:** High-speed routers and switches for backplane interconnects. 4. **Medical Imaging:** Transferring large amounts of sensor data with minimal interference. --- ### Installation Note When integrating the **48SV2-GVHDT-R** into a design, ensure that the PCB layout accounts for the **Shield Tabs**. These tabs are critical for both mechanical stability and providing a low-impedance path to ground to reduce electromagnetic interference (EMI).