The **M2CEC-2751-R/Q** refers to a high-performance **Micro-Coaxial Connector** assembly, typically used in high-frequency signal transmission applications. These components are critical in industries requiring minimal signal loss and high-density packaging. --- ### 1. Component Identification This part belongs to the category of **RF (Radio Frequency) Interconnects**. It is designed to bridge the gap between a printed circuit board (PCB) and a micro-coaxial cable. | Feature | Specification Details | | :--- | :--- | | **Connector Type** | Micro-Coaxial (Mating with I-PEX or U.FL standards) | | **Orientation** | Right-Angle (R) / Specific Qualification (Q) | | **Common Frequency Range** | DC to 6 GHz (Standard) | | **Impedance** | 50 Ohms (Typical for RF) | | **Cable Compatibility** | AWG #36 to #42 micro-coaxial wires | --- ### 2. Key Electronic Attributes #### A. Signal Integrity The internal structure is engineered to maintain a constant **50-ohm characteristic impedance**. This is vital to prevent signal reflections (VSWR) which can degrade performance in high-speed data transmission. #### B. Electromagnetic Shielding The metal shell (housing) acts as a **Faraday cage**. In the "R/Q" variants, the shielding is often enhanced to prevent: * **EMI (Electromagnetic Interference):** Preventing the connector from leaking signals to nearby components. * **EMS (Electromagnetic Susceptibility):** Protecting the internal signal from external noise. #### C. Contact Material The contacts are usually **Gold-plated** over a nickel underplate. This serves two purposes: 1. **Conductivity:** Minimizes electrical resistance at the junction. 2. **Oxidation Resistance:** Ensures a long-term reliable connection even in humid environments. --- ### 3. Application Use Cases Because of its small footprint and high-frequency capabilities, this part is found in: * **Wireless Modules:** Connecting internal Wi-Fi/Bluetooth chips to external antennas. * **Display Interfaces:** High-speed LVDS or eDP signal routing in laptops and tablets. * **Medical Imaging:** Transmitting sensitive data from handheld probes to processing units. * **Drones/Robotics:** Compact GPS and telemetry link connections. --- ### 4. Technical Comparison: Standard vs. R/Q Variants | Feature | Standard M2CEC | R/Q Variant | | :--- | :--- | :--- | | **Profile Height** | ~1.5mm to 2.5mm | Often Low-Profile/Optimized | | **Mating Cycles** | ~20-30 cycles | Enhanced durability (up to 50+) | | **Locking Mechanism** | Friction fit | Often includes a mechanical "click" or lock |