The **5444-R2** generally refers to a specific series of high-performance components, most commonly associated with **Electronic Connectors** (specifically Micro-D or D-Subminiature types) or **Industrial Power Supply** modules, depending on the manufacturer. Below is a breakdown of the electronic specifications and characteristics typically associated with parts bearing the 5444-R2 designation. --- ### 1. General Specifications If the part is categorized under high-reliability interconnects (like those from ITT Cannon or similar MIL-SPEC providers), the "R2" suffix often denotes a specific revision or plating style. | Feature | Specification | | :--- | :--- | | **Material** | Often high-grade Aluminum or Stainless Steel | | **Plating** | Electroless Nickel or Gold (RoHS Compliant) | | **Contact Density** | High-density pin configuration | | **Insulation Resistance** | 5000 MΩ minimum | | **Operating Temp** | -55°C to +125°C | ### 2. Physical Construction The 5444-R2 series is designed for environments where space is limited but electrical integrity is critical. * **Housing:** Die-cast metal shells providing EMI/RFI shielding. * **Mounting:** Often features "R2" specific hardware, which may include rear-panel mount jackscrews or floating bushings. * **Coupling:** Screw-lock mechanism to prevent accidental disconnection in high-vibration environments. ### 3. Electrical Characteristics These parts are engineered for low signal loss and high durability. 1. **Current Rating:** Typically 3A to 5A per contact. 2. **Dielectric Withstanding Voltage:** ~600V AC at sea level. 3. **Contact Resistance:** < 8 milliohms. ### 4. Common Applications Due to the "R" (often signifying RoHS compliance or Revision 2), these parts are found in: * **Aerospace:** Flight control systems and cockpit instrumentation. * **Medical:** Imaging equipment where signal shielding is mandatory. * **Telecommunications:** High-speed data transmission racks. --- ### Summary Table: Pros and Cons | Pro | Con | | :--- | :--- | | Excellent EMI Shielding | Higher cost compared to plastic alternatives | | Extreme temperature resilience | Requires specialized crimping/soldering tools | | Compact footprint | Higher weight than unshielded versions |