The **M2AS1-6114-R2** is a specialized high-performance RF (Radio Frequency) electromechanical coaxial switch, typically manufactured by companies like **Radiall**. These components are critical in routing high-frequency signals with minimal loss and high isolation. --- ### 1. General Specifications The part belongs to the **M2 Series** of sub-miniature switches. Below are the primary technical characteristics: | Feature | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 18 GHz (typically) | | **Actuator Type** | Failsafe | | **Operating Voltage** | 12V to 28V DC (model dependent) | | **Connector Type** | SMA Female | | **Switching Speed** | ~10 ms | --- ### 2. Electronic Breakdown The M2AS1-6114-R2 consists of three primary electronic/mechanical subsystems: #### A. The Actuator (Drive Mechanism) This is the "engine" of the switch. * **Failsafe Operation:** In a failsafe configuration, the switch remains in a "Normally Closed" (NC) position when no power is applied. When voltage is applied to the coil, the electromagnetic force moves the contacts to the "Normally Open" (NO) position. * **Inductive Load:** The internal coil acts as an inductive load; therefore, it often requires a suppression diode to prevent voltage spikes when the power is disconnected. #### B. RF Contact Assembly * **Gold Plating:** The internal contact points are usually gold-plated to ensure low contact resistance and to prevent oxidation over time. * **Impedance Matching:** The internal geometry is precision-engineered to maintain a **50 Ohm** characteristic impedance, minimizing Reflection (VSWR). #### C. Control Interface * The "-R2" suffix often denotes specific pin configurations or the inclusion of **TTL Logic** control or specific solder terminals. * **Current Consumption:** These switches typically draw between 100mA and 200mA during the switching phase or while held in the energized state. --- ### 3. Key Performance Metrics To understand if this part fits a specific circuit, engineers look at these three electronic values: 1. **Insertion Loss:** The amount of signal power lost as it passes through the switch (usually < 0.5 dB). 2. **Isolation:** The ability of the switch to prevent signal "leakage" into the disconnected port (usually > 60 dB). 3. **VSWR (Voltage Standing Wave Ratio):** A measure of how much RF power is reflected back to the source (ideally < 1.5:1). --- ### 4. Common Applications * **Automated Test Equipment (ATE):** Routing signals from a device under test to various measurement instruments. * **Telecommunications:** Switching between primary and redundant antenna systems. * **Satellite/Aerospace:** Signal routing in weight-sensitive environments where SMA connectors are standard.