The **KWDY-AF-R** is an electronic component primarily classified as a **High-Frequency/RF Coaxial Connector** or a specialized **PCB Mount Connector**, often utilized in automotive and telecommunication industries. Below is a detailed breakdown of its electronic parts and specifications. --- ### 1. General Specifications The KWDY series typically refers to sub-miniature connectors designed for high-density applications where space and signal integrity are critical. | Feature | Specification Details | | :--- | :--- | | **Component Type** | PCB Mount Coaxial Connector | | **Orientation** | Right Angle (R suffix) | | **Mounting Style** | Through-hole or Surface Mount (model dependent) | | **Impedance** | Typically 50 Ohms | | **Frequency Range** | DC to 6 GHz (standard for AF/RF series) | --- ### 2. Physical Construction (Electronic Parts) The component consists of four primary internal sections that ensure electrical performance: #### A. Central Conductor (Contact Pin) * **Material:** Usually Gold-plated Phosphor Bronze or Brass. * **Function:** This is the primary signal path. Gold plating is used to minimize contact resistance and prevent oxidation over long periods. #### B. Insulator (Dielectric) * **Material:** PTFE (Teflon) or High-temp Plastic. * **Function:** It separates the center conductor from the outer shell, maintaining constant impedance (50Ω) and preventing short circuits. #### C. Outer Shell / Shield (Housing) * **Material:** Zinc Alloy or Brass with Nickel or Tin plating. * **Function:** Acts as the ground (GND) path and provides EMI (Electromagnetic Interference) shielding to ensure signal purity. #### D. Solder Leads/Terminals * **Material:** Tin-plated leads. * **Function:** The "AF-R" designation usually implies a specific lead configuration for automated assembly (SMT or Reflow soldering). --- ### 3. Key Electronic Characteristics When integrating the KWDY-AF-R into a circuit, the following parameters are critical: 1. **VSWR (Voltage Standing Wave Ratio):** Usually < 1.3:1 at high frequencies, indicating minimal signal reflection. 2. **Insertion Loss:** Designed to be extremely low (typically < 0.2dB) to preserve signal strength. 3. **Dielectric Withstanding Voltage:** Usually rated for 250V - 500V RMS. 4. **Operating Temperature:** Generally rated from -40°C to +105°C, making it suitable for automotive environments. --- ### 4. Applications * **Automotive:** GPS modules, Infotainment systems, and Telematics. * **Wireless Communication:** WiFi routers and cellular base station internal routing. * **Industrial:** High-frequency testing equipment. ---