The **CCRT-40K60-R** is a high-performance coaxial switch manufactured by Teledyne Coax Switches. It belongs to the CCR-40K series, designed specifically for demanding microwave and RF applications. ### 1. Key Specifications The following table outlines the primary electrical and mechanical characteristics of the CCRT-40K60-R: | Parameter | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 40 GHz | | **Actuation** | Latching | | **Operating Voltage** | 28 Vdc (Typical) | | **Impedance** | 50 Ohms | | **Connector Type** | 2.92mm (K-Type) | | **Operating Temperature** | -55°C to +85°C | --- ### 2. Functional Electronic Parts & Features The device is composed of several critical subsystems that allow it to function as a precision RF component: * **Latching Actuator:** Unlike "failsafe" switches, this latching model uses a permanent magnet to hold the switch in its last position. It only requires a momentary pulse of current to switch states, which significantly reduces power consumption and heat dissipation. * **Internal Terminations:** The "T" in the part number indicates it is a **Terminated** switch. When a port is not in use (OFF state), it is automatically connected to an internal 50-ohm load. This prevents signal reflections that could damage sensitive upstream components. * **Electronic Interface:** The unit typically includes a multi-pin connector (often a D-sub or solder pins) to interface with the control system. This interface handles: * **Pulse Command:** Triggers the switch transition. * **Indicator Circuitry:** Provides electronic feedback to the controller to confirm the switch position (Open/Closed). * **RF Contact Assembly:** Utilizing high-grade gold-plated contacts to ensure low insertion loss and high isolation across the wide 40 GHz bandwidth. --- ### 3. Performance Metrics (RF) The efficiency of the electronic path is measured by these three critical factors: 1. **Insertion Loss:** Measures the signal power lost through the switch. At 40 GHz, this is kept extremely low to maintain signal integrity. 2. **Isolation:** Measures the "leakage" to the unused port. High isolation is critical for preventing cross-talk in test environments. 3. **VSWR (Voltage Standing Wave Ratio):** Ensures the switch maintains a consistent 50-ohm environment to minimize signal reflections. --- ### 4. Typical Applications * **Automated Test Equipment (ATE):** Routing high-frequency signals between multiple instruments. * **Satellite Communications:** Switching between redundant signal paths. * **Military Radar:** High-reliability signal distribution in extreme environments.