The part number **143-B16-R** typically refers to a specific series of high-quality **Edge Card Connectors**, often manufactured by companies like EDAC or specialized distributors. These are used to connect printed circuit boards (PCBs) to backplanes or other motherboards. --- ### Technical Specifications Below is a breakdown of the standard features associated with the 143 series edge card connectors: | Feature | Specification | | :--- | :--- | | **Contact Gender** | Female | | **Number of Positions** | 16 Positions (indicated by "16") | | **Pitch (Spacing)** | 0.156" (3.96mm) | | **Mounting Type** | Through-hole (Solder) | | **Termination** | Solder Tail (Eyelet or PC Tail) | | **Plating** | Gold Flash or Gold over Nickel | | **Orientation** | Vertical / Straight | --- ### Component Identification The alphanumeric code provides specific information about the part's construction: * **143**: Represents the series (Standard Card Edge Connector). * **B**: Usually indicates the mounting style (e.g., standard mounting ears/flanges for chassis attachment). * **16**: Specifies the number of electrical contacts/circuits. * **R**: Generally signifies "RoHS Compliant," meaning it is free from hazardous materials like lead. ### Common Applications 1. **Industrial Controls**: Connecting modular logic boards to a main interface. 2. **Legacy Computing**: Used in older hardware expansions or peripheral connections. 3. **Power Supplies**: Reliable high-current board-to-board power delivery. 4. **Testing Equipment**: Facilitating removable daughter-cards for diagnostic tools. --- ### Key Advantages * **Durability**: Designed for high-cycle insertion and extraction. * **Reliability**: The dual-row contact design ensures a stable electrical connection even under vibration. * **Standardization**: Follows industry-standard pitch requirements for wide compatibility.