The **RTS-112-R** is a specific model of a **Miniature PCB Power Relay** commonly manufactured by brands like **Rayex Electronic**. These components are widely used for switching high-current loads in consumer electronics and industrial automation. --- ### 1. Key Technical Specifications The following table outlines the typical electrical and physical characteristics of the RTS-112-R: | Feature | Specification | | :--- | :--- | | **Coil Voltage** | 12V DC | | **Contact Configuration** | 1 Form C (SPDT - Single Pole Double Throw) | | **Max Switching Current** | 10A to 12A (model dependent) | | **Max Switching Voltage** | 250V AC / 30V DC | | **Coil Power Consumption** | Approx. 360mW to 450mW | | **Contact Material** | Silver Alloy (AgSnO2 or AgCdO) | | **Mounting Type** | Through-Hole (PCB Mount) | --- ### 2. Internal Components and Construction The RTS-112-R consists of several critical electronic and mechanical parts: * **Electromagnetic Coil:** A copper wire winding around an iron core. When 12V DC is applied, it creates a magnetic field. * **Armature:** A moving lever that is pulled by the magnetic field of the coil. * **Contacts (NC/NO/COM):** * **Common (COM):** The main terminal that switches between the other two. * **Normally Closed (NC):** Connected to COM when the relay is "off." * **Normally Open (NO):** Connects to COM only when the relay is "on." * **Spring:** Returns the armature to its original position once the coil is de-energized. * **Sealed Housing:** Usually made of plastic (PBT), designed to protect internal parts from dust and soldering flux. --- ### 3. Connection Diagram (Standard Pinout) While you should always verify with the specific datasheet, the standard layout for a 5-pin SPDT relay like the RTS-112-R is: ```text [Coil] [NO] | | [COM]----| | | [Coil] [NC] ``` --- ### 4. Typical Applications * **Home Appliances:** Microwave ovens, air conditioners, and washing machines. * **Automotive Electronics:** Power windows or central locking systems. * **Industrial Control:** PLC output modules and motor starters. * **Smart Home:** Smart plugs and automated lighting switches. ---