The part number **53_SMA-R50-0-3/111_N** refers to a high-frequency RF (Radio Frequency) connector manufactured by **Huber+Suhner**. This specific component is a precision-engineered SMA connector typically used in telecommunications, testing equipment, and aerospace applications. --- ### 1. Technical Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | SMA (Sub-Miniature version A) | | **Gender** | Jack (Female) | | **Impedance** | 50 $\Omega$ (Standard for RF) | | **Interface Style** | Straight / Bulkhead | | **Max Frequency** | 18 GHz (Standard) up to 26.5 GHz (High-grade) | | **Mounting Type** | Rear Mount / Nut fastening | | **Body Plating** | Gold over Nickel (usually indicated by the '111' suffix) | --- ### 2. Part Number Breakdown Huber+Suhner uses a structured nomenclature to define the characteristics of their connectors: * **53**: Indicates the product group (usually Bulkhead Jacks). * **SMA**: The interface type (Sub-Miniature version A), which uses a threaded coupling mechanism. * **R50**: Denotes a 50-ohm characteristic impedance. * **0-3**: Refers to the specific series or physical dimensions of the flange/mounting hole. * **111**: The material and plating code (typically Gold plating on the body and center contact for superior conductivity and corrosion resistance). * **N**: Often signifies the packaging type or a specific revision/standard (e.g., standard industrial version). --- ### 3. Key Applications Because SMA connectors are designed for durability and high-frequency stability, this part is found in: * **Wireless Infrastructure:** Cellular base stations and antennas. * **Test & Measurement:** Oscilloscopes and spectrum analyzers. * **Aerospace:** Radar systems and satellite communication. * **Medical:** High-speed imaging and diagnostic equipment. --- ### 4. Installation & Mechanical Properties * **Coupling Nut:** This is a "Jack" (Female) connector meant to be mounted on a panel or housing. It provides a fixed interface for a "Plug" (Male) cable assembly. * **Environmental:** Designed to operate in a wide temperature range (typically -65°C to +165°C). * **Durability:** Rated for approximately 500 mating cycles under proper torque conditions (recommended torque is 0.8 to 1.1 Nm).