The **18APT-022-R** is a specific electronic component, typically categorized as a **Surface Mount (SMT) Spring Contact** or "Pogo Pin" style connector terminal. These are widely used in modern electronics for internal grounding, shielding, or power connections between a PCB and another surface (like a metal housing or another board). --- ### Technical Specifications Based on industry standards for this part number series, here are the typical technical characteristics: | Feature | Specification | | :--- | :--- | | **Component Type** | SMT Spring Contact / Grounding Clip | | **Material** | Beryllium Copper (BeCu) or Stainless Steel | | **Plating** | Gold (Au) over Nickel (Ni) | | **Height** | 2.2mm (approximate, based on "022" suffix) | | **Mounting Type** | Surface Mount (SMT / SMD) | | **Packaging** | Tape and Reel (for automated pick-and-place) | --- ### Key Functions The 18APT-022-R serves three primary roles in an electronic assembly: 1. **Electrical Grounding:** It provides a low-resistance path between the PCB ground plane and the device's chassis to reduce Electromagnetic Interference (EMI). 2. **Antenna Feeding:** Frequently used in smartphones and tablets to connect the PCB to an integrated antenna on the device's casing. 3. **Mechanical Buffer:** Because it is spring-loaded, it can absorb mechanical tolerances and vibrations, ensuring a constant electrical connection even if the device is dropped or shaken. --- ### Advantages of the "R" Series (Tape and Reel) The **-R** suffix usually denotes **Tape and Reel** packaging. This is critical for industrial manufacturing: * **Automation:** Allows high-speed "Pick and Place" robots to populate PCBs. * **Precision:** Ensures the contact is oriented correctly for soldering. * **Solderability:** The gold plating ensures excellent solder fillet formation and prevents oxidation during storage. --- ### Common Applications * **Mobile Devices:** Smartphones, smartwatches, and tablets. * **IoT Hardware:** Small sensors and wearable tech. * **Automotive Electronics:** Infotainment systems and sensor modules where vibration resistance is required.