The part number **507T175M3702** typically refers to a high-performance **Micro-D connector assembly**, specifically from the **Glenair 507-175 series**. These components are widely used in aerospace, defense, and high-reliability industrial applications where space is limited and EMI (Electromagnetic Interference) protection is critical. --- ### 1. Technical Specifications Breakout Based on standard Glenair nomenclature, the part number is decoded as follows: | Component | Code | Description | | :--- | :--- | :--- | | **Series** | 507-175 | Micro-D EMI Backshell (Top Entry) | | **Material/Finish** | M | Electroless Nickel (Conductive) | | **Shell Size** | 37 | Fits a 37-pin Micro-D Connector | | **Hardware** | 02 | Standard Fillister Head Jackscrew | --- ### 2. Key Features The 507-175 series backshell provides several critical functions for an electronic system: * **EMI/RFI Shielding:** The electroless nickel finish (`M`) provides high conductivity, ensuring that electrical noise does not escape the cable or interfere with the signals inside. * **Strain Relief:** It protects the delicate solder or crimp joints of the 37-pin connector from mechanical stress and pulling. * **Compact Design:** Designed for **MIL-DTL-83513** connectors, which have a 0.050-inch (1.27 mm) contact spacing, making them much smaller than standard D-Sub connectors. * **Top Entry:** The cable enters from the top (straight) rather than at a 45 or 90-degree angle. --- ### 3. Applications These parts are generally found in "Mission Critical" environments: 1. **Avionics:** Flight control systems and cockpit instrumentation. 2. **Satellites:** Space-rated hardware requiring low outgassing and high durability. 3. **Medical Equipment:** High-density imaging or diagnostic tools requiring shielding. 4. **Defense:** Handheld tactical radios and ruggedized computers. --- ### 4. Technical Drawing Reference If you are integrating this into a PCB or harness design, the mechanical dimensions follow these general parameters: ```markdown - Housing Material: Aluminum Alloy 6061-T6 - Finish: Electroless Nickel per AMS-C-26074 - Hardware: 300 Series Stainless Steel, Passivated - Temperature Range: -65°C to +150°C ```