The part number **48NV-2RRVB-R** typically refers to a high-density, multi-position rectangular connector, commonly associated with the **Sumitomo Electric** or similar automotive-grade interconnect series. These components are engineered for high-reliability signal transmission in harsh environments. --- ### 1. General Specifications This specific part is part of a series designed for wire-to-board or wire-to-wire applications. Below is a breakdown of the typical technical characteristics: | Feature | Specification | | :--- | :--- | | **Component Type** | Rectangular Housing / Connector | | **Number of Positions** | 48 Pin | | **Configuration** | 2-Row (Double Row) | | **Mounting Type** | Through-hole or Wire-mount (depending on sub-variant) | | **Material** | High-temperature Thermoplastic | | **Contact Plating** | Usually Tin or Selective Gold | | **Environmental Rating** | High vibration and moisture resistance | --- ### 2. Part Number Breakdown (Nomenclature) While exact prefixes can vary by manufacturer, the code generally follows this logic: * **48**: Denotes the **Pin Count** (48 positions). * **NV**: Refers to the **Series Name** (High-density "NV" series). * **2**: Indicates the number of **Rows** (Dual row). * **RR**: Often signifies the **Keying** or **Retention** mechanism (e.g., Rear Release or specific mechanical coding). * **VB**: Usually identifies the **Color** (e.g., Violet/Black) or a specific **Voltage/Board** orientation. * **-R**: Typically stands for **RoHS Compliant** or **Reel/Tape** packaging. --- ### 3. Key Applications Due to the high pin density and robust locking mechanisms, these connectors are primarily found in: 1. **Automotive ECUs:** Used for Engine Control Units where multiple sensors and actuators must converge into a single interface. 2. **Industrial Automation:** Connecting PLC (Programmable Logic Controller) modules to peripheral sensors. 3. **Telecommunications:** High-density signal routing in rack-mounted hardware. --- ### 4. Technical Advantages * **Space Efficiency:** The dual-row design allows for 48 connections in a compact footprint. * **Mechanical Integrity:** Features an integrated locking lever or clip to prevent accidental disconnection due to high G-force or vibration. * **Terminal Positioning Assurance (TPA):** Most NV-series connectors include a secondary lock to ensure the metal terminals are fully seated in the housing.