The **M2AS1-6231-R** is a specific part number belonging to the **M2 series** of high-performance connectors, typically manufactured by companies like **Winchester (Kings)** or similar RF specialized firms. These connectors are primarily used in high-density broadcast, telecommunications, and aerospace applications. --- ## 1. Technical Specifications The "M2" designation usually refers to a high-density, sub-miniature connector style designed to replace standard BNCs in tight spaces. | Feature | Specification | | :--- | :--- | | **Connector Type** | M2 / Micro-BNC (High Density) | | **Impedance** | 75 Ohms (Optimized for Video/RF) | | **Frequency Range** | DC to 6 GHz (Supports 3G-SDI / 6G-SDI) | | **Body Plating** | Nickel or Gold (dependent on specific sub-revision) | | **Contact Material** | Beryllium Copper or Brass with Gold Plating | | **Mounting Style** | Right-Angle PCB Mount | --- ## 2. Key Electronic Components & Design The part is engineered to maintain signal integrity in high-frequency environments. ### A. Signal Contacts (Pins) * **Gold Plating:** The center pin is typically plated with heavy gold to minimize contact resistance and prevent oxidation over long periods. * **75 Ohm Matching:** The internal geometry is precision-machined to ensure a consistent 75-ohm impedance, which is critical for preventing signal reflections in digital video (SDI). ### B. Dielectric Insulator * **Material:** Usually **PTFE (Teflon)**. * **Function:** It separates the center conductor from the outer shield. PTFE is chosen for its low dielectric constant and high thermal stability, ensuring the signal travels at a consistent speed with minimal loss. ### C. Mechanical Housing * **Right-Angle Geometry:** The "6231" configuration usually denotes a right-angle PCB footprint. This allows for low-profile mounting on motherboards or PCIe cards. * **Shielding:** The outer shell acts as a Faraday cage, protecting the internal signal from Electromagnetic Interference (EMI) and Radio Frequency Interference (RFI). --- ## 3. Common Applications Due to its 75-ohm rating and high-frequency capabilities, this part is found in: * **Broadcast Routers:** High-density video switching equipment. * **Medical Imaging:** High-resolution video transmission for surgical displays. * **DSLAMs:** Telecommunications equipment requiring compact RF interfaces. * **FPGA Development Boards:** Used as an I/O interface for high-speed serial data. --- ## 4. Soldering & Assembly ```cpp // Typical PCB Footprint Considerations - Hole Diameter: 0.8mm - 1.0mm (Standard for signal pins) - Solder Process: Compatible with Wave Soldering or Reflow (check datasheet for peak temp) - Grounding: Multiple ground legs to ensure low-impedance return path ```