The **MH26FAG-R** is an electronic component primarily classified as a **High-Frequency/Microwave Coaxial Switch**. These devices are essential in RF (Radio Frequency) systems for routing signals between different paths with minimal loss and high isolation. --- ### 1. General Specifications The MH26FAG-R is typically manufactured by brands like **Teledyne Relays** or similar specialized RF switch manufacturers. Below is a breakdown of its core characteristics: | Feature | Description | | :--- | :--- | | **Component Type** | Electromechanical Coaxial Switch | | **Configuration** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 26.5 GHz | | **Actuator Voltage** | Usually 12V or 28V DC (model dependent) | | **Connector Type** | SMA Female | | **Switching Speed** | ~10ms to 20ms | --- ### 2. Key Internal Electronic Parts The functionality of this component relies on several internal sub-assemblies: #### A. The Actuator (Solenoid) The heart of the switch is an electromagnetic coil. When voltage is applied, it creates a magnetic field that physically moves a plunger or "armature" to toggle the signal path. #### B. RF Cavity and Contacts The signal passes through a precision-machined RF cavity. The contacts are usually gold-plated to ensure: * **Low Insertion Loss:** Minimal power is lost as the signal passes through. * **High Isolation:** Prevents signal leakage into the "off" port. #### C. Control Circuitry Inside the housing, there are often protection components such as: * **Suppression Diodes:** To prevent back-EMF spikes from damaging the driving electronics when the coil is de-energized. * **Indicator Circuitry (Optional):** Some versions include a separate set of DC contacts to verify the switch position remotely. --- ### 3. Applications The MH26FAG-R is used in high-reliability environments where signal integrity at microwave frequencies is critical: 1. **Automated Test Equipment (ATE):** Routing signals from a Device Under Test (DUT) to different measurement instruments (Spectrum Analyzers, Network Analyzers). 2. **Satellite Communications:** Switching between redundant amplifiers or antennas. 3. **Radar Systems:** Directing pulses between transmit and receive modules. --- ### 4. Technical Summary Table | Parameter | Typical Value | | :--- | :--- | | **Impedance** | 50 Ohms | | **VSWR** | < 1.7:1 (at 26.5 GHz) | | **Isolation** | > 60 dB (at high frequencies) | | **Operating Temp** | -55°C to +85°C |