The **CCRT-40K6D-R** is a high-performance, multi-position coaxial switch manufactured by **Radiall**. This specific component is designed for high-frequency RF (Radio Frequency) applications where signal routing with low loss and high isolation is critical. ### 1. Technical Specifications The "CCRT-40K6D-R" nomenclature defines several key electronic and mechanical characteristics: | Feature | Specification | | :--- | :--- | | **Switch Type** | SP6T (Single Pole Six Throw) | | **Frequency Range** | DC to 40 GHz | | **Actuator Type** | Latching (Self-cut-off) | | **Actuator Voltage** | 28 Vdc | | **Connector Type** | SMA 2.9 (K Connector compatible) | | **Termination** | Terminated (50 Ohms internal loads) | | **Life Cycle** | Up to 2 million cycles | --- ### 2. Key Electronic Components & Functions #### A. The Latching Actuator Unlike "Failsafe" switches that return to a default position when power is removed, the **Latching** mechanism in this model uses a pulse of current to change states. Once the switch has moved, it remains in that position without needing continuous power. This reduces heat dissipation and power consumption within the system. #### B. SMA 2.9 Connectors (K-Type) To handle frequencies up to **40 GHz**, the part uses SMA 2.9 connectors. These are precision connectors that maintain a constant impedance of 50 Ohms and minimize signal reflection (VSWR). #### C. Internal Terminations The "T" in the series often signifies that the ports are **Terminated**. When a specific path is not selected, the unused ports are internally connected to a 50-ohm load. This prevents signal leakage and protects sensitive upstream components from reflected power. #### D. Suppression Diodes Most Radiall switches in this series include internal suppression diodes. These protect the driving electronics from "Back EMF" spikes generated by the inductive coils inside the switch when the DC voltage is toggled. --- ### 3. Typical Performance Metrics | Frequency (GHz) | Insertion Loss (dB) | Isolation (dB) | VSWR | | :--- | :--- | :--- | :--- | | 0 - 6 | < 0.20 | > 70 | < 1.20 | | 26.5 - 40 | < 1.10 | > 50 | < 2.00 | --- ### 4. Application Use Cases * **ATE (Automatic Test Equipment):** Routing multiple signals from a device under test (DUT) to a single spectrum analyzer. * **Satellite Communications:** High-reliability signal switching in ground stations. * **5G Infrastructure:** Testing and deployment of millimeter-wave (mmWave) frequencies.