The **FVS-10-R** is an electronic component primarily classified as a **High-Voltage Reed Switch** or a specific type of **Vacuum Switch**, often manufactured by companies like OKI or Standex Electronics. It is designed to handle high breakdown voltages in a compact form factor. --- ### 1. Core Technical Specifications Below are the typical electronic characteristics for the FVS-10-R: | Parameter | Value/Range | | :--- | :--- | | **Contact Form** | Form A (Normally Open) | | **Max Switching Voltage** | Up to 1,000V DC | | **Max Breakdown Voltage** | ~3,000V DC (across open contacts) | | **Max Switching Current** | 1.0 A | | **Max Contact Rating** | 10 - 50 W (Power dependent on load) | | **Contact Resistance** | < 150 mΩ | | **Operating Time** | ~1.0 ms (including bounce) | --- ### 2. Key Electronic Features #### A. Vacuum Dielectric The "V" in the series often signifies a **Vacuum** seal. Unlike standard reed switches filled with inert gas, the FVS-10-R uses a vacuum to prevent arcing. This allows the switch to handle much higher voltages across a very small gap between the contacts without the risk of ionization or spark-over. #### B. Contact Material The contacts are usually plated with **Rhodium** or **Tungsten**. * **Rhodium** provides excellent wear resistance and stable contact resistance. * **Tungsten** is often used in high-voltage variants because of its high melting point, which resists "pitting" during high-power switching. #### C. Sensitivity (Ampere-Turns) The switch is actuated by an external magnetic field. The sensitivity is measured in **AT (Ampere-Turns)**. For the FVS-10-R, the pull-in range is typically narrow to ensure precise activation when placed inside a copper coil or near a permanent magnet. --- ### 3. Application Use Cases Because of its high insulation resistance and high voltage capability, it is used in: 1. **Medical Equipment:** Defibrillators or X-ray power supplies where high-voltage isolation is critical. 2. **Test & Measurement:** Automated Test Equipment (ATE) for insulation testing (Hi-Pot testing). 3. **Radio Frequency (RF):** In some cases, used for antenna tuning units due to low capacitance between open contacts. --- ### 4. Circuit Symbol and Integration In a schematic, the FVS-10-R is represented as a standard Reed Switch. ```mermaid graph LR A[Terminal 1] --- B( / ) --- C[Terminal 2] style B stroke-dasharray: 5 5 ``` *Note: When integrating this part, ensure the PCB trace spacing (creepage/clearance) matches the 3kV breakdown capability of the component.*