The **MA7HFCX-R** is a high-reliability, micro-miniature connector part of the **MA7 Series** produced by **Micro-Mode Products** (now part of ITT Cannon). These connectors are designed specifically for high-frequency microwave applications where space is limited and environmental durability is critical. --- ### 1. Technical Specifications The MA7 series is characterized by its "push-on" blind-mate interface, similar to SMP or SMPM standards but with proprietary enhancements for military and aerospace grade reliability. | Parameter | Specification (Typical) | | :--- | :--- | | **Connector Type** | Micro-Miniature Coaxial | | **Frequency Range** | DC to 40 GHz (depending on configuration) | | **Impedance** | 50 Ohms | | **Coupling Mechanism** | Push-on / Blind-mate | | **Material (Body)** | Stainless Steel (Gold plated or Passivated) | | **Dielectric** | PTFE (Teflon) | | **Operating Temp** | -65°C to +165°C | --- ### 2. Part Number Breakdown (MA7HFCX-R) While specific internal codes can vary by manufacturer revisions, the nomenclature generally follows this logic: * **MA7**: The Series identifier (Micro-Miniature high-density series). * **HFC**: Often denotes "High Frequency" or a specific "Hermetic" glass-to-metal seal configuration for vacuum/pressure environments. * **X**: Typically a placeholder for specific plating or mounting options (e.g., surface mount, flange, or cable type). * **-R**: Generally indicates **RoHS Compliance** (Lead-free) or **Right-Angle** geometry. --- ### 3. Key Electronic Features * **Blind-Mate Capability:** Designed to allow for a certain amount of radial and axial misalignment. This is essential for "plug-in" modules where you cannot manually thread a connector. * **Low VSWR:** Optimized internal geometry ensures minimal signal reflection even at frequencies exceeding 20 GHz. * **Hermeticity:** If the "H" indicates hermetic, the part uses a glass-to-metal seal to prevent the leakage of gases, making it suitable for satellite payloads or pressurized cockpit instruments. --- ### 4. Common Applications Due to its high performance and small footprint, the MA7HFCX-R is typically found in: 1. **Phased Array Antennas:** Used to connect multiple antenna elements in a tight grid. 2. **Military Radar:** Signal processing units where high-speed data and RF signals must be routed between boards. 3. **Space/Satellite Hardware:** Where weight and size are restricted, but vacuum-sealed reliability is required. 4. **Test & Measurement:** High-density switch matrices. ---