The **W2CA-141-R** is a specific part number associated with a high-performance **RF/Microwave Coaxial Cable Assembly**. These components are typically used in telecommunications, aerospace, and high-frequency testing environments. --- ## 1. Technical Specifications The W2CA-141-R is defined by its physical construction and its ability to handle high-frequency signals with minimal loss. | Feature | Description | | :--- | :--- | | **Cable Type** | RG-402 (0.141") Semi-Rigid or Conformable | | **Impedance** | 50 Ohms (Standard for RF) | | **Frequency Range** | DC up to 18 GHz (typ.) or 27 GHz (max) | | **Connector Type** | Usually SMA (Male/Plug) on both ends | | **Plating** | Gold-plated center contacts | | **RoHS Status** | Compliant (Indicated by the "-R" suffix) | --- ## 2. Structural Breakdown The "141" in the part number refers to the diameter of the cable (0.141 inches). This size is a industry standard for a balance between power handling and flexibility. ### A. Center Conductor Typically made of **Silver-Plated Copper Clad Steel (SPCW)**. This provides excellent conductivity and strength. ### B. Dielectric The insulation layer is usually **PTFE (Teflon)**. It has a low dielectric constant, which ensures that signals travel fast with low attenuation (signal loss). ### C. Shielding * **Outer Conductor:** In "Conformable" versions (like the 141-R), the shield is a tin-filled copper braid. * **Function:** This provides 100% shielding effectiveness, preventing electromagnetic interference (EMI) from leaking out or entering the signal path. --- ## 3. Key Applications Because of its high precision and durability, the W2CA-141-R is used in specific electronic sectors: 1. **Test and Measurement:** Connecting signal generators to oscilloscopes or spectrum analyzers. 2. **Military/Aerospace:** Used in radar systems where signal integrity is critical. 3. **Base Stations:** Internal wiring for 5G/LTE cellular towers. 4. **Satellite Communications:** Handling high-frequency microwave uplinks. --- ## 4. Why the "-R" Suffix? In modern electronics manufacturing, the **-R** suffix almost always denotes **RoHS Compliance**. This means the part is manufactured without the use of restricted hazardous substances like lead, cadmium, or mercury, making it suitable for global sale and environmentally friendly disposal.