The part number **507T175E0902E** follows the standard nomenclature for the **Glenair 507 series** of Micro-D EMI/RFI Backshells. These components are critical in aerospace, defense, and high-reliability industrial applications for protecting connectors from electromagnetic interference and physical strain. --- ## 1. Technical Specification Breakdown Each character in the part number corresponds to a specific design feature: | Segment | Code | Description | | :--- | :--- | :--- | | **Series** | `507` | Glenair Series 507 (Micro-D Backshell) | | **Profile/Style** | `T` | Top Entry (The cable enters from the top/center) | | **Shell Size** | `175` | Corresponds to the number of contacts (e.g., 100-pin connectors) | | **Finish** | `E` | Chem Film (Alodine) - Provides conductivity and corrosion resistance | | **Entry Size** | `09` | The diameter size for the cable entry hole | | **Hardware** | `02` | Standard Jackscrew (typically Allen Head or Hex) | | **Mod Code** | `E` | Represents specific plating or packaging modifications (usually Electroless Nickel) | --- ## 2. Key Physical Characteristics * **Material:** Machined aluminum alloy (6061-T6). * **EMI Shielding:** Designed to provide 360° grounding for braided cable shields, ensuring that electronic signals are protected from external noise. * **Compatibility:** This backshell is designed to fit **MIL-DTL-83513** Micro-D connectors. * **Durability:** High resistance to vibration and mechanical shock. --- ## 3. Component Usage in Electronics This part is not an active electronic component (like a resistor or IC) but a **mechanical-electronic interface**. Its roles include: 1. **Strain Relief:** Prevents the wires from being pulled out of the connector pins. 2. **Faraday Cage Effect:** The conductive finish (`E`) creates a continuous shield, preventing EMI from leaking into or out of the wire bundle. 3. **Environmental Protection:** While not fully waterproof, it protects the rear of the connector from dust and debris. --- ### Technical Drawing Reference (Conceptual) ```text [ Cable Entry (09) ] | | _______|__|_______ | | | 507T Housing | <--- Aluminum Body |__________________| | (Jackscrews 02) | <--- Secures to Micro-D Plug ```