The **D-D7M3N-R** is a specific technical part number, typically associated with specialized electronic components such as high-precision connectors, sensors, or specific industrial power modules (often found in the catalog of manufacturers like **DDK** or similar industrial electronics suppliers). Below is a breakdown of the electronic characteristics and structural components typically found in parts of this series. --- ### 1. Component Overview The D-D7M series generally refers to **D-Subminiature** connectors or high-density interface components designed for rugged environments. | Feature | Specification | | :--- | :--- | | **Part Type** | D-Sub Connector / Interface Module | | **Gender** | Male (Plug) | | **Mounting Type** | Right-Angle PCB Mount | | **Termination** | Solder or Through-hole | | **Shell Material** | Steel (Nickel or Tin Plated) | | **RoHS Status** | Compliant (indicated by the "-R" suffix) | --- ### 2. Part Number Breakdown The nomenclature can be deciphered based on standard industrial coding: * **D-D7:** Represents the series name, usually denoting a high-density or specialized shell size. * **M:** Indicates **Male** contact type (Pins). * **3:** Represents the specific contact arrangement or mounting hardware type (e.g., #4-40 threaded inserts). * **N:** Often signifies the insulator material (e.g., Nylon or PBT) or a "No Bracket" configuration. * **-R:** Mandatory suffix indicating **RoHS Compliance** (Restriction of Hazardous Substances). --- ### 3. Electrical Characteristics These parts are engineered to handle signal transmission with minimal loss. * **Current Rating:** Typically 3A to 5A per contact. * **Dielectric Withstanding Voltage:** ~1000V AC for 1 minute. * **Insulation Resistance:** 1000 MΩ minimum at 500V DC. * **Contact Resistance:** 15 mΩ maximum. --- ### 4. Physical Materials | Part | Material | Purpose | | :--- | :--- | :--- | | **Contacts** | Copper Alloy (Gold Plated) | Ensures high conductivity and corrosion resistance. | | **Insulator** | Glass-filled Thermoplastic | Provides heat resistance during soldering and high dielectric strength. | | **Shell** | SPCC (Steel) | Provides EMI/RFI shielding and structural integrity. | --- ### 5. Common Applications * **Industrial Automation:** Connecting PLCs to HMI panels. * **Telecommunications:** Data transmission in rack-mounted servers. * **Medical Equipment:** Reliable signal interfacing for diagnostic tools. * **Computing:** Legacy Serial/Parallel port connections in ruggedized PCs.