The **HRS-1F-R** is a high-sensitivity, subminiature signal relay manufactured by HKE (Zhejiang HKE Relay). It is widely used in telecommunications, security systems, and office automation due to its compact size and low power consumption. --- ### ## Technical Specifications Below are the primary electrical and mechanical characteristics of the HRS-1F-R relay: | Feature | Specification | | :--- | :--- | | **Contact Form** | 1 Form C (SPDT - Single Pole Double Throw) | | **Contact Material** | Silver Alloy | | **Contact Rating (Resistive)** | 1A @ 120VAC / 1A @ 24VDC | | **Max Switching Voltage** | 120VAC / 60VDC | | **Max Switching Current** | 2A | | **Coil Nominal Voltages** | 3V, 5V, 6V, 9V, 12V, 24V DC | | **Coil Power Consumption** | Standard: ~200mW / Sensitive: ~150mW | | **Dielectric Strength** | 500VAC (between open contacts) | --- ### ## Key Features * **Subminiature Size:** Designed for high-density PCB mounting where space is a premium. * **High Sensitivity:** The "F" in the part number usually denotes high sensitivity, meaning it requires very little current to trigger the coil. * **Sealed Construction:** The "R" suffix often indicates a RoHS compliant, plastic-sealed structure, making it washable and protected from environmental contaminants. * **DIP Terminal Layout:** Matches standard integrated circuit pitch for easy board design. --- ### ## Pinout Configuration The HRS-1F-R typically follows a standard 6-pin or 5-pin layout: 1. **Coil Pins (2):** Connected to the control circuit to energize the electromagnet. 2. **Common (COM):** The moving part of the switch. 3. **Normally Closed (NC):** Connected to COM when the relay is off. 4. **Normally Open (NO):** Connected to COM when the relay is energized. --- ### ## Typical Applications * **Telecommunications:** Switching signal lines in PBX or modems. * **Security:** Alarm sensors and control panels. * **Smart Home:** Low-power switching for thermostats or sensors. * **Medical Equipment:** Signal routing in diagnostic devices.