The **MA72TBA-R** is a specific model number typically associated with **Micro-D connectors**, often manufactured by companies like **ITT Cannon** or similar high-reliability connector specialists. These parts are engineered for military, aerospace, and industrial applications where space is limited and environmental resilience is critical. --- ### 1. General Specifications The "MA" series generally refers to Micro-D (MIL-DTL-83513 type) connectors. Below is a breakdown of the typical electronic and physical attributes of this component category: | Feature | Specification (Typical) | | :--- | :--- | | **Connector Type** | Micro-D (Rectangular) | | **Contact Density** | 0.050 inch (1.27 mm) pitch | | **Body Material** | Aluminum Alloy (often Nickel or Cadmium plated) | | **Insulator** | Liquid Crystal Polymer (LCP) or Polyphenylene Sulfide (PPS) | | **Contact Current Rating** | 3 Amps maximum | | **Operating Temperature** | -55°C to +125°C | --- ### 2. Part Number Breakdown While specific manufacturer prefixes can vary slightly, the nomenclature usually follows this logic: * **MA**: Series identifier (Micro-D Aluminum). * **72**: Indicates the **Pin/Contact Count**. In this case, it features 72 contacts. * **T**: Often indicates the **Mounting/Hardware type** (e.g., Threaded inserts or specific Jackpost configurations). * **BA**: Refers to the **Termination Style** (e.g., Straight PCB mount or Board Angle). * **R**: Generally signifies **RoHS Compliance** (Lead-free) or a specific **Reverse** gender/mounting orientation. --- ### 3. Key Electronic Characteristics #### High Signal Integrity Due to the Twist Pin contact system used in these connectors, they provide multiple points of contact. This ensures low contact resistance and high reliability under heavy vibration. #### Shielding (EMI/RFI) The aluminum shell provides excellent electromagnetic interference (EMI) shielding, which is vital for high-speed data transmission in electronically "noisy" environments like aircraft cockpits or satellite systems. #### Dielectric Withstanding Voltage Designed to handle approximately **600 VAC at sea level** and **150 VAC at high altitudes** (70,000 feet), preventing arcing between pins in thin atmosphere. --- ### 4. Applications * **Aerospace:** Flight control systems and cockpit avionics. * **Defense:** Missile guidance systems and man-portable radios. * **Medical:** High-end imaging equipment where miniaturization is required. * **Downhole Drilling:** Sensors used in oil and gas exploration. ---