The **W5FV-0-R2/Q** is a specific variant of a high-performance **Micro-miniature Coaxial Connector** series, primarily manufactured by **Hirose Electric (HRS)**. These components are designed for high-frequency signal transmission in space-constrained electronic devices. --- ## 1. Technical Specifications The part belongs to the **W.FL** or **W.FL2** family, which are among the smallest coaxial connectors in the industry. | Feature | Specification Details | | :--- | :--- | | **Connector Type** | Micro-Coaxial (Receptacle) | | **Frequency Range** | DC to 6 GHz | | **Impedance** | 50 Ohms | | **Mated Height** | Approximately 1.18mm to 1.4mm (depending on plug) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **V.S.W.R.** | 1.3 Max (0 to 3 GHz), 1.4 Max (3 to 6 GHz) | | **Plating** | Gold-plated contacts for high conductivity | --- ## 2. Key Components & Construction The W5FV-0-R2/Q consists of three primary electronic sub-parts: 1. **Center Contact:** A precision-machined gold-plated lead that carries the high-frequency signal. 2. **Insulator:** Usually made of a high-performance liquid crystal polymer (LCP) to maintain dielectric constants at high frequencies. 3. **Outer Shell (Ground):** A metal casing that provides shielding against Electromagnetic Interference (EMI) and serves as the ground return path. --- ## 3. Application Areas Due to its ultra-small footprint, this part is found in devices where PCB real estate is at a premium: * **Mobile Terminals:** Smartphones and tablets for internal antenna connections. * **Wireless Modules:** Wi-Fi 6, Bluetooth, and GPS modules. * **IoT Devices:** Wearables (smartwatches) and compact sensor nodes. * **Measurement Equipment:** High-speed data probing points. --- ## 4. Usage Considerations When designing with the W5FV-0-R2/Q, engineers must follow specific protocols: ### Solder Land Pattern ```text Recommended Pad Layout: - Center Pad: 0.4mm x 0.35mm - Ground Pads: Two side pads approximately 0.6mm x 0.5mm - Separation: Critical to maintain 50-ohm impedance match. ``` ### Durability * **Mating Cycles:** These connectors are designed for limited cycles (typically 20-30 matings). They are intended for internal assembly rather than frequent consumer plugging/unplugging. * **Extraction:** A specific extraction tool is recommended to avoid damaging the delicate center pin during maintenance.