### Technical Overview of PE9934-72-R The **PE9934-72-R** is a specialized high-frequency cable assembly typically manufactured by **Pasternack**. It is designed for applications requiring high precision, low signal loss, and durability in RF (Radio Frequency) environments. --- ### 1. Key Electronic Components This part is not a single electronic component (like a resistor) but rather a complex **RF Cable Assembly**. Its performance is defined by three main sections: | Component | Description | Material/Specification | | :--- | :--- | :--- | | **Connector A** | Precision Connector | N Male (Plug) | | **Connector B** | Precision Connector | N Male (Plug) | | **Coaxial Cable** | High-Performance Line | PE-P142LL (Low Loss) | | **Length** | Physical Span | 72 Inches (182.88 cm) | --- ### 2. Electrical Specifications The "Electronic" behavior of this part is characterized by how it manages electromagnetic waves. Below are the typical electrical parameters: * **Impedance:** **50 Ohms**. This is the standard for RF communication to ensure maximum power transfer and minimum reflection. * **Frequency Range:** Operates from **DC up to 18 GHz**. * **Velocity of Propagation:** Typically **83%**, meaning the signal travels at 83% of the speed of light through the dielectric. * **VSWR (Voltage Standing Wave Ratio):** Usually rated at **< 1.35:1**, indicating high efficiency and low reflected power. * **Shielding Effectiveness:** Greater than **90 dB**, protecting the signal from external electromagnetic interference (EMI). --- ### 3. Material Construction (Physical-Electronic) The internal structure is engineered to maintain signal integrity: 1. **Center Conductor:** Usually silver-plated copper for high conductivity. 2. **Dielectric:** Expanded PTFE (Polytetrafluoroethylene), which provides a low dielectric constant for low loss. 3. **Shielding:** Double shielded (often a silver-plated copper braid over a foil) to prevent "leakage" of the high-frequency signal. 4. **Jacket:** FEP (Fluorinated Ethylene Propylene), chosen for environmental resistance and flexibility. --- ### 4. Common Applications * **Test and Measurement:** Connecting Analyzers to Devices Under Test (DUT). * **Telecommunications:** Base station infrastructure. * **Aerospace & Defense:** Radar and satellite communication links where 18 GHz performance is required. ---