The **CCR-59S650-R** is a high-performance **Coaxial Switch** manufactured by Teledyne Relays. It is specifically designed for Radio Frequency (RF) applications where signal integrity, reliability, and precision are paramount. --- ## 1. Technical Specifications Below are the primary electronic and physical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 26.5 GHz | | **Actuator Voltage** | 28V DC | | **Actuator Type** | Latching | | **Connector Type** | SMA (Female) | | **Impedance** | 50 Ohms | | **Operating Temperature** | -40°C to +65°C | --- ## 2. Key Electronic Features ### A. Latching Actuator Unlike "Failsafe" switches that require continuous power to stay in a specific position, the **Latching** mechanism in this model only requires a pulse of electricity to switch states. Once switched, it remains in that position without further power consumption, reducing heat dissipation and power draw. ### B. RF Performance (High Frequency) The device is rated up to **26.5 GHz**, making it suitable for K-band applications. Key performance metrics at these frequencies include: * **Low Insertion Loss:** Minimizes signal strength reduction as it passes through the switch. * **High Isolation:** Ensures that the "off" port does not leak signal into the active path. * **Low VSWR (Voltage Standing Wave Ratio):** Reduces signal reflections that could damage sensitive RF power sources. ### C. Self-Cutoff and Indicators The "S" and "R" designations in the part number often refer to specific internal circuit features: * **Self-Cutoff:** Automatically cuts power to the actuator coils once the switch has successfully transitioned, preventing coil burnout. * **Indicators:** Integrated circuits that provide a feedback signal to the system controller, confirming the switch is in the desired position. --- ## 3. Typical Applications The CCR-59S650-R is commonly found in environments requiring high-reliability RF switching: 1. **Telecommunications:** Signal routing in base stations and satellite communication. 2. **Test & Measurement:** Automated test equipment (ATE) for verifying high-frequency components. 3. **Military/Aerospace:** Radar systems and electronic warfare suites where SMA connectivity and high frequency are standard. ---