The **CCP-37SXE-RMS** is a specialized high-performance coaxial switch manufactured by Teledyne Relays. It is designed for RF (Radio Frequency) applications where signal integrity and reliability are critical. --- ### 1. Key Technical Specifications The following table outlines the core electronic and mechanical parameters: | Parameter | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 18 GHz | | **Actuator Voltage** | 28 VDC (Typical) | | **Actuator Type** | Latching (Self-cut off) | | **Connector Type** | SMA Female | | **Impedance** | 50 Ohms | | **Features** | Auxiliary Contacts & Moisture Seal | --- ### 2. Breakdown of the Component Parts #### A. The Actuation Mechanism (Latching) Unlike "failsafe" switches that require continuous power to stay in a specific state, the **CCP-37SXE** uses a **Latching Actuator**. - It uses a pulse of electricity to move the switch. - Once the state is changed, it remains in that position without needing further power. - This reduces heat dissipation and power consumption in the system. #### B. The RF Contact System The internal contacts are designed to maintain a 50-ohm characteristic impedance. The "RMS" suffix often indicates specific enhancements: * **S:** Indicates SMA Connectors. * **E:** Indicates the inclusion of **Auxiliary Contacts**. These are separate low-power electrical circuits that trigger when the RF switch moves, allowing a microcontroller or status light to confirm the switch position. * **M:** Refers to a moisture seal or environmental protection, making it suitable for harsher industrial or aerospace environments. #### C. Signal Integrity Performance The electronic design focuses on three critical RF metrics: 1. **Insertion Loss:** Minimal signal strength is lost as the wave passes through the switch. 2. **Isolation:** Prevents signal leakage between the "on" port and the "off" port (typically >60dB at high frequencies). 3. **VSWR (Voltage Standing Wave Ratio):** Measures how much of the signal is reflected back to the source; a low VSWR indicates high efficiency. --- ### 3. Application Use Cases * **Automated Test Equipment (ATE):** Routing signals between a device under test and measurement instruments. * **Satellite Communications:** Switching between primary and redundant signal paths. * **Defense Systems:** Used in radar and electronic warfare platforms where durability is required. ---