The **CCT-39S950-R** is a high-performance, multi-position coaxial switch typically manufactured by **Teledyne Relays**. It is designed for RF (Radio Frequency) and microwave applications where signal routing with high isolation and low insertion loss is critical. --- ### 1. Key Technical Specifications The "CCT" series typically refers to a **normally open** multi-throw configuration. Below is a breakdown of the primary electronic characteristics for this specific model: | Parameter | Specification (Typical) | | :--- | :--- | | **Frequency Range** | DC to 18 GHz | | **Impedance** | 50 Ohms | | **Switch Type** | SP10T (Single Pole, 10 Throw) | | **Actuator Voltage** | 24V - 30V DC (28V Nominal) | | **Actuator Type** | Normally Open | | **Connector Type** | SMA (Female) | --- ### 2. Electronic Component Breakdown #### A. The Actuator System The device uses an electromagnetic solenoid mechanism. Since it is **Normally Open**, the switch requires constant current to hold a specific path closed. * **Pulse Width:** Requires a specific pull-in voltage to transition. * **Current Consumption:** Typically draws around 140mA - 200mA per position at 28VDC. #### B. RF Contact Mechanism The internal "parts" of the RF path are engineered using high-precision metal blades. * **Isolation:** Designed to prevent "bleed-through" between channels, usually maintaining >60dB isolation at high frequencies. * **Insertion Loss:** Uses gold-plated contacts to keep signal degradation below 0.5dB even at 18 GHz. #### C. Control Logic (The "-R" Suffix) The **-R** in the part number often signifies specific features like **Positive Common** or **RoHS compliance** (depending on the specific series cataloging). In modern Teledyne nomenclature: * **Indicators:** This model may include internal circuitry to provide feedback signals indicating which position is currently closed. * **Suppression Diodes:** Usually includes internal diodes to protect your control circuitry from "back EMF" (voltage spikes) when the coils are de-energized. --- ### 3. Connection Pinout Structure Typically, these switches utilize a D-sub connector or a circular solder pin header for control: | Pin Type | Function | | :--- | :--- | | **Common (+) / (-)** | The shared power return for all solenoids. | | **Position 1-10** | Individual trigger pins for each RF path. | | **Indicator Pins** | (Optional) Logic level outputs to verify physical switching. | --- ### 4. Common Applications * **Automated Test Equipment (ATE):** Routing one signal source to 10 different units under test. * **Satellite Communications:** Switching between redundant antenna arrays. * **Signal Monitoring:** Sequential scanning of multiple RF inputs into a single Spectrum Analyzer.