The **W2PA-1FE-R/N** is a specific surface-mount technology (SMT) component, primarily identified as an **RF Coaxial Connector** (specifically a W.FL or equivalent micro-miniature series). These parts are critical in high-frequency wireless communication devices where space is at a premium. --- ### 1. Technical Specifications The "W2PA" series is designed to handle high-frequency signals with minimal loss. Below are the typical electronic and physical specifications: | Feature | Specification | | :--- | :--- | | **Connector Type** | Ultra-Miniature Coaxial Connector (Male/Plug) | | **Frequency Range** | DC to 6 GHz | | **Impedance** | 50 Ohms (Standard) | | **V.S.W.R.** | 1.3 Max (0 to 3GHz), 1.4 Max (3 to 6GHz) | | **Mated Height** | ~1.25mm to 1.5mm (Ultra-low profile) | | **Mounting Type** | Surface Mount (SMT) | | **Contact Plating** | Gold over Nickel | --- ### 2. Key Electronic Characteristics * **Signal Integrity:** Because it operates up to 6 GHz, it is optimized for Wi-Fi (2.4GHz/5GHz), Bluetooth, and GPS signals. The gold plating ensures low contact resistance and prevents oxidation. * **Space Efficiency:** The "W" designation usually refers to the ultra-small footprint. It is significantly smaller than U.FL connectors, making it ideal for compact PCBs. * **Durability:** While designed for high performance, these connectors have a limited "mating cycle" (usually around 20-30 cycles), meaning they are intended for permanent assembly rather than frequent plugging/unplugging. --- ### 3. Application Use Cases The W2PA-1FE series is commonly found in the following electronic assemblies: 1. **Smartphones & Tablets:** Connecting the internal mainboard to the cellular or Wi-Fi antenna. 2. **IoT Modules:** Used in small-scale sensors (e.g., ESP32 or Quectel modules) for external antenna attachment. 3. **Wearables:** Essential for smartwatches where PCB real estate is extremely limited. 4. **Miniature Drones:** Linking the flight controller to the video transmitter (VTX) or receiver (RX). --- ### 4. Handling and Soldering Precautions * **SMT Reflow:** These parts are delivered in "Tape and Reel" format for automated pick-and-place machines. They require precise solder paste application to avoid shorting the center signal pin to the ground shell. * **Mechanical Stress:** Due to their size, the solder pads are fragile. It is recommended to use a specialized extraction tool to disconnect the mating cable to avoid ripping the connector off the PCB. ---