The **M6SWVS-5D-R/UL** is a specific model of a **Miniature Power Relay**, typically manufactured by companies like **Nidec Components (formerly Fujitsu/Takamisawa)**. It is widely used in industrial control systems, home appliances, and telecommunications due to its compact size and high switching capability. --- ### 1. Part Number Breakdown Understanding the alphanumeric code helps identify the technical specifications: | Segment | Meaning | Specification | | :--- | :--- | :--- | | **M6** | Series Code | Miniature Power Relay Series | | **S** | Sealing | Sealed type (washable) | | **W** | Contact Material | Silver-nickel or specialized alloy for high inrush | | **VS** | Contact Form | 1 Form A (SPST-NO) - Single Pole Single Throw | | **5D** | Coil Voltage | 5V DC Nominal Voltage | | **R** | Feature | High sensitivity or specific pinning layout | | **UL** | Safety Rating | UL (Underwriters Laboratories) Certified | --- ### 2. Key Technical Specifications Below are the typical electronic characteristics for this relay series: #### **Coil Data** * **Nominal Voltage:** 5V DC * **Must Operate Voltage:** ~3.75V DC (75% of nominal) * **Must Release Voltage:** ~0.25V DC (5% of nominal) * **Coil Resistance:** Usually around 125Ω to 167Ω (depending on power consumption rating). #### **Contact Data** * **Contact Arrangement:** 1 Form A (Normally Open) * **Max Switching Current:** 5A to 8A (load dependent) * **Max Switching Voltage:** 250V AC / 30V DC * **Contact Resistance:** < 100 mΩ --- ### 3. Physical & Environmental Features * **Package Type:** Through-hole (PCB Mount). * **Sealing:** Plastic sealed construction, allowing the PCB to be water-washed after soldering without damaging the internal contacts. * **Insulation:** High dielectric strength between coil and contacts (often up to 4,000V AC). * **Operating Temperature:** Typically -40°C to +85°C. --- ### 4. Common Applications * **Smart Home:** Controlling lights, fans, or smart plugs. * **Industrial:** PLC (Programmable Logic Controller) output modules. * **Heating/Cooling:** Thermostat control circuits. * **Power Supplies:** Inrush current protection or standby power switching. ---