The **HRS-50-R** typically refers to a high-performance, rotary-action **hermetically sealed relay** or a specific series of **coaxial switches/connectors** (often associated with brands like Hirose or Teledyne/Relay manufacturers). Below is a breakdown of the electronic components and technical specifications generally associated with this part number in an industrial/RF context. --- ## 1. Technical Specifications The "50" in the part number often denotes its characteristic impedance (50 Ohms), while the "R" usually signifies a "RoHS compliant" or "Reverse" configuration. | Feature | Specification (Typical) | | :--- | :--- | | **Impedance** | 50 $\Omega$ | | **Frequency Range** | DC to 18 GHz (for RF variants) | | **Contact Material** | Gold-plated Silver or specialized alloys | | **Dielectric Strength** | 500V to 1000V RMS | | **Insulation Resistance** | > 1,000 M$\Omega$ | | **Operating Temperature** | -55°C to +125°C | --- ## 2. Key Internal Components ### A. The Actuator/Coil System * **Solenoid/Electromagnet:** This converts electrical energy into mechanical movement. In the HRS series, this is often a low-power consumption coil designed for high reliability. * **Armature:** A balanced mechanical piece that moves when the coil is energized to open or close the electrical path. ### B. Contact Assembly * **Wiping Contacts:** These are designed to "wipe" across the surface as they close, removing small amounts of oxidation and ensuring a low-resistance connection. * **Hermetic Seal:** The internal parts are encased in a glass-to-metal seal or ceramic-to-metal seal. This prevents moisture, dust, and gases from degrading the contacts, making it ideal for aerospace or harsh industrial environments. ### C. Housing and Shielding * **Metal Can:** Usually made of a nickel-iron alloy (like Kovar) or stainless steel to provide EMI/RFI shielding. * **Lead Pins:** High-conductivity pins, often gold-plated to prevent corrosion and facilitate easy soldering to a PCB. --- ## 3. Common Applications Due to its robust construction, the HRS-50-R is found in sectors requiring high precision: 1. **Telecommunications:** Switching high-frequency signals in base stations. 2. **Test & Measurement:** Used in automated test equipment (ATE) where signal integrity is critical. 3. **Aerospace:** High-reliability switching in cockpit electronics or satellite communication arrays. --- ## 4. Typical Circuit Symbol & Connection In a schematic, this part is represented as a relay or a SPDT (Single Pole Double Throw) switch. ```mermaid graph LR A[Input Signal] --- B{HRS-50-R Switch} B --- C[Output A] B --- D[Output B] E[Coil Voltage] -.-> B ```