The **CONSMA014-R178** is a high-performance RF (Radio Frequency) connector manufactured by Linx Technologies (now part of TE Connectivity). It is a surface-mount SMA jack designed specifically for integration onto Printed Circuit Boards (PCBs). --- ## 1. Component Overview The CONSMA014-R178 is a **Reverse Polarity SMA (RP-SMA)** female connector. Unlike standard SMA connectors, RP-SMA changes the gender of the center pin to comply with certain FCC regulations (commonly used in Wi-Fi and consumer wireless equipment). ### Key Specifications | Feature | Specification | | :--- | :--- | | **Connector Type** | RP-SMA Jack (Female Socket, Male Body) | | **Mounting Type** | Surface Mount (SMT) | | **Orientation** | Right Angle | | **Impedance** | 50 $\Omega$ | | **Frequency Range** | 0 to 12.4 GHz | | **Body Material** | Brass | | **Finish** | Gold Plating | --- ## 2. Electrical Performance To ensure signal integrity in high-frequency circuits, the component adheres to strict electrical parameters: * **Insulation Resistance:** 5000 M$\Omega$ minimum. * **Voltage Rating:** 335 V RMS. * **VSWR (Voltage Standing Wave Ratio):** Typically stays below 1.2:1 up to the rated frequency, minimizing signal reflection. * **Contact Resistance:** * Center Contact: $\leq$ 3.0 m$\Omega$ * Outer Contact: $\leq$ 2.0 m$\Omega$ --- ## 3. Physical & Mechanical Properties The "R178" suffix often refers to its compatibility with specific cable types or its specific packaging/mounting profile for manufacturing. ### Construction Materials * **Body:** Gold-plated brass for excellent conductivity and corrosion resistance. * **Insulator:** PTFE (Teflon), which provides a low dielectric constant and high thermal stability during reflow soldering. * **Center Contact:** Beryllium Copper with gold plating for durability and low contact resistance. ### Mechanical Durability * **Mating Cycles:** Rated for 500 cycles minimum. * **Interface:** Conforms to MIL-STD-348A standards to ensure compatibility with other RF components. --- ## 4. Typical Applications This part is commonly found in electronics that require a compact, robust wireless interface: 1. **Wi-Fi Routers/Access Points:** Often used for external antenna connections. 2. **IoT Gateways:** Providing a transition from the internal PCB trace to an external SMA antenna. 3. **Embedded Modules:** Used in cellular (4G/5G) or LoRaWAN modules where space is at a premium. ---