## CCP-33S90-R: Electronic Specifications and Overview The **CCP-33S90-R** is a specialized coaxial switch manufactured by **Teledyne Relays**. It belongs to the CCP-33 series, which are broadband, SPDT (Single Pole Double Throw), electromechanical coaxial switches designed for high-frequency applications. --- ### 1. Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 18 GHz | | **Actuator Voltage** | 28 Vdc (Nominal) | | **Actuator Type** | Failsafe | | **Connector Type** | SMA (Female) | | **Impedance** | 50 Ohms | | **Operational Temperature** | -55°C to +85°C | --- ### 2. Detailed Electronic Characteristics #### A. Actuation Mechanism (Failsafe) The "Failsafe" designation means the switch has a default "normally closed" position. When DC voltage is applied to the actuator, the switch moves to the alternative position. If power is lost, the internal spring mechanism automatically returns the switch to its original de-energized state. #### B. RF Performance (at 18 GHz) To maintain signal integrity at high frequencies, the CCP-33S90-R provides the following typical performance metrics: * **Insertion Loss:** Typically < 0.50 dB (minimizes signal degradation). * **Isolation:** Typically > 60 dB (prevents signal leakage between ports). * **VSWR (Voltage Standing Wave Ratio):** Typically < 1.50:1 (minimizes signal reflection). #### C. Control Circuitry The device often includes features to protect the driving electronics: * **Suppression Diodes:** Usually included to eliminate back-EMF spikes when the coil is de-energized. * **Indicator Circuitry:** Some variants (indicated by specific suffixes) provide electronic feedback to verify the switch position. --- ### 3. Application Use Cases Due to its high frequency and reliability, the CCP-33S90-R is commonly used in: * **Automated Test Equipment (ATE):** Routing high-speed signals between instruments. * **Telecommunications:** Switching between primary and backup antennas. * **Military/Aerospace:** Robust RF switching in harsh environments. --- ### 4. Part Number Breakdown The nomenclature `CCP-33S90-R` can be decoded as follows: * **CCP-33:** Series designation (Commercial Coaxial SPDT). * **S:** SMA Connectors. * **9:** Actuator Voltage (typically denotes the 28V range). * **0:** Non-latching (Failsafe) operation. * **R:** RoHS Compliant.