The **S02-01-R** typically refers to a high-performance, surface-mount (SMD) RF shield clip or a specific micro-connector component, most notably manufactured by companies like **Harwin**. Below is a detailed breakdown of its electronic characteristics and technical specifications. --- ## 1. Component Overview The S02-01-R is primarily used in **Electro-Magnetic Compatibility (EMC)** applications. It acts as a retention mechanism for metal shielding cans on a Printed Circuit Board (PCB). ### Key Features | Feature | Specification | | :--- | :--- | | **Component Type** | RFI Shield Clip (Surface Mount) | | **Material** | Beryllium Copper or Phosphor Bronze | | **Plating** | Tin or Gold over Nickel | | **Mounting Type** | SMT (Surface Mount Technology) | | **Packaging** | Tape and Reel (indicated by the "-R" suffix) | --- ## 2. Technical Specifications This part is designed to automate the shielding process, replacing manual soldering of shield cans. ### Electrical & Mechanical Properties * **Contact Resistance:** Generally below $20\text{m}\Omega$. * **Solderability:** Designed for standard lead-free reflow profiles. * **Durability:** Capable of multiple insertion/withdrawal cycles for shield maintenance. * **Current Rating:** While primarily for grounding, it can handle minor stray currents. --- ## 3. Functionality in Electronics The S02-01-R serves three main purposes in electronic design: 1. **EMI/RFI Shielding:** It provides a low-impedance path to the ground plane for the metal shield can, protecting sensitive components from interference. 2. **Ease of Maintenance:** Unlike soldered cans, a clip system allows technicians to remove the shield to inspect or repair components underneath without de-soldering. 3. **Automated Assembly:** Being a "Tape and Reel" component, it can be placed by standard Pick-and-Place machines, reducing labor costs. --- ## 4. Footprint and Layout When designing a PCB for the S02-01-R, engineers must consider the following: ```c // Example PCB Pad Dimensions (Typical) Length: 3.90mm Width: 1.50mm Gap: Calculated based on Shield Can Thickness (usually 0.15mm - 0.30mm) ``` ---