The part number **570-059N05LL** refers to a high-performance, shielded backshell connector accessory, typically manufactured by companies like **Glenair**. These components are critical in aerospace, defense, and industrial applications where electromagnetic interference (EMI) protection is required. ### 1. Technical Specifications Overview Below is a breakdown of the typical characteristics of this component series: | Feature | Specification | | :--- | :--- | | **Component Type** | EMI/RFI Shield Sock Backshell | | **Material** | Aluminum Alloy (Standard) | | **Plating/Finish** | Electroless Nickel (Code N) | | **Configuration** | Low Profile, Straight Entry | | **Shielding** | Integrated Braid (Shield Sock) | | **Compatibility** | MIL-DTL-38999 Series I, II, III, IV | --- ### 2. Detailed Part Number Breakdown To understand the "Electronic Parts" aspect, we must decode the nomenclature: 1. **570-059**: The base series number, indicating a composite or metallic backshell with an integrated shielding "sock." 2. **N**: Represents the **Finish**. "N" stands for Electroless Nickel, which provides excellent conductivity for grounding and high resistance to corrosion. 3. **05**: Refers to the **Shell Size**. This indicates the specific diameter intended to mate with the circular connector (e.g., Size 11 or 15 depending on the specific series chart). 4. **LL**: Indicates specific **Length or Hardware options**, often signifying a "Long" lead or specific locking hardware requirements. --- ### 3. Key Functions in Electronic Systems This part is not a "passive" component like a resistor; it is an **interconnect accessory** with several electronic functions: * **EMI/RFI Protection**: The integrated shield sock is clamped to the cable braid, creating a 360-degree Faraday cage. This prevents external electromagnetic noise from disrupting signals and stops the cable from emitting interference. * **Grounding Continuity**: The electroless nickel plating ensures low electrical resistance between the cable shield and the connector shell, providing a path to ground. * **Strain Relief**: It protects the delicate solder or crimp terminations inside the connector from mechanical stress and vibration. * **Environmental Sealing**: When used with shrinking boots, it protects the internal wiring from moisture and dust. --- ### 4. Common Applications * **Avionics**: Shielding sensitive data bus lines. * **Military Communications**: Ensuring clear signal integrity in high-interference environments. * **Medical Imaging**: Protecting high-resolution signals from nearby electronic noise.