The **CCT-39S730-R** is a high-performance, multi-position coaxial switch manufactured by **Teledyne Relays**. It is designed for microwave and RF (Radio Frequency) applications where signal routing requires high isolation and low insertion loss. --- ### 1. Key Technical Specifications The following table highlights the primary electronic and mechanical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Switch Type** | SP3T (Single Pole, Triple Throw) | | **Frequency Range** | DC to 18 GHz | | **Actuator Voltage** | 28 VDC | | **Actuator Current** | 140 mA (Nominal) | | **Impedance** | 50 Ohms | | **RF Connector** | SMA (Female) | | **Switching Time** | 15 ms (Maximum) | | **Operating Temp** | -55°C to +85°C | --- ### 2. Functional Breakdown #### A. Actuator System (The "7" in the Part Number) This model features a **Latching Actuator**. Unlike "Failsafe" switches that return to a default position when power is removed, a latching switch stays in its last commanded position. * **Efficiency:** It only consumes power during the switching cycle (pulse), reducing heat and overall power consumption in the system. #### B. Indicators (The "3" in the Part Number) The "3" signifies the inclusion of **Indicators**. These are internal sets of auxiliary contacts that provide an electrical signal (telemetry) to confirm the switch's current position (e.g., whether the path is closed or open). #### C. RF Performance Metrics * **Isolation:** Typically ranges from 60dB to 70dB depending on the frequency. High isolation ensures minimal signal leakage between inactive ports. * **Insertion Loss:** Very low (approx. 0.2dB to 0.5dB), ensuring signal strength is maintained through the switch. * **VSWR:** Usually below 1.5:1, minimizing signal reflections back to the source. --- ### 3. Application Use Cases The CCT-39S730-R is commonly integrated into electronic systems where reliability is critical: 1. **Automated Test Equipment (ATE):** Routing multiple signals to a single spectrum analyzer or signal generator. 2. **Satellite Communications:** Switching between redundant amplifiers or antennas. 3. **Radar Systems:** Directing microwave pulses between different transmit/receive modules. --- ### 4. Part Number Decoder (Example) The suffix codes often denote specific configurations: * **CCT-39S:** Basic Series (SP3T to SP6T Coaxial Switch). * **7:** Latching Actuator. * **3:** With Indicators. * **0:** Solder Terminals (Standard). * **-R:** RoHS Compliant.