The **MH44TCD-R** is a specific technical component, typically categorized as a **High-Density Rectangular Connector** or a specialized **D-Subminiature accessory**, often used in industrial automation, telecommunications, and aerospace applications. Below is a breakdown of its technical characteristics and electronic properties. --- ### 1. General Specifications The MH44TCD-R belongs to the "MH Connectors" series, specifically designed for high-density requirements where space is at a premium. | Parameter | Specification | | :--- | :--- | | **Connector Type** | High-Density D-Sub (HDD) | | **Number of Positions** | 44 Pins | | **Gender** | Receptacle (Female) | | **Termination Style** | Right-Angle (R) / Through-Hole | | **Contact Material** | Copper Alloy | | **Plating** | Selective Gold over Nickel | --- ### 2. Key Electronic Features The "TCD" designation in the part number often refers to specific mounting or shell configurations. Here are the core electronic attributes: * **Current Rating:** Typically rated for **3 Amps** per contact. * **Voltage Rating:** Rated for approximately **250V AC/DC**. * **Dielectric Withstanding Voltage:** Can usually withstand **1000V AC** for one minute. * **Insulation Resistance:** Minimum of **5000 MΩ** to prevent cross-talk and leakage. * **Contact Resistance:** Low resistance (usually **<15 mΩ**) to ensure signal integrity at high speeds. --- ### 3. Physical & Mechanical Construction The "R" suffix usually denotes a **Right-Angle** PCB orientation, which is crucial for edge-mounting on printed circuit boards. #### Component Breakdown: 1. **Insulator:** Made of high-temperature Thermoplastic (UL94V-0 rated), allowing it to withstand wave soldering processes. 2. **Shell:** Steel construction, often plated with Tin or Zinc for EMI/RFI shielding. 3. **Boardlocks:** Usually features integrated "Harpoons" or boardlocks to provide mechanical stability during soldering. 4. **Footprint:** 44 pins arranged in three rows (High Density) rather than the standard two rows found in DB15 connectors of the same shell size. --- ### 4. Common Applications * **Industrial Controls:** Connecting PLCs to peripheral sensors. * **Data Communication:** High-density I/O ports for networking hardware. * **Video Systems:** Used in specialized VGA or RGB signal routing where high pin counts are required in small form factors. ---