The **8MS-2-R** refers to a specific series of **Micro-Miniature Slide Switches**, commonly manufactured by brands like **Dailywell** or **Taiway**. These components are widely used in electronics for power selection or signal switching where space is extremely limited. --- ### 1. Technical Specifications The part number typically follows a standard coding system. Here is a breakdown of the technical characteristics for the 8MS series: | Feature | Specification | | :--- | :--- | | **Switch Type** | Slide Switch | | **Circuitry** | SPDT (Single Pole Double Throw) | | **Switch Function** | On-On (2-Position) | | **Contact Rating** | 0.4 VA max @ 20V (AC or DC) / 1A @ 120VAC | | **Contact Resistance** | 20 mΩ max. initial | | **Insulation Resistance** | 1,000 MΩ min. | | **Operating Temperature** | -30°C to 85°C | --- ### 2. Part Number Breakdown (8MS-2-R) The suffix codes determine the physical mounting and terminal style: * **8MS**: Series code for Micro-Miniature Slide Switches. * **2**: Indicates a 2-position functionality (On-On). * **R**: Usually denotes the **Right Angle** PC mounting orientation. This means the actuator slides horizontally while the pins are soldered vertically into the board, or the pins are bent 90 degrees. --- ### 3. Key Physical Features 1. **Compact Size**: These are "Micro-Miniature," making them much smaller than standard slide switches. They are ideal for handheld devices. 2. **Terminal Sealing**: Most models feature epoxy sealing at the base of the terminals to prevent contamination during soldering (flux entry). 3. **Actuator Style**: Typically features a small plastic recessed or extended slide handle. --- ### 4. Common Applications Due to their small footprint and reliability, the 8MS-2-R is frequently found in: * **Consumer Electronics**: On/Off switches for Bluetooth headsets or small toys. * **Instrumentation**: Mode selection for handheld multimeters or sensors. * **Telecommunications**: Routing signals in compact networking hardware. * **Medical Devices**: Power control for portable diagnostic tools. --- ### 5. Soldering & Assembly ```markdown - Manual Soldering: 350°C for 3 seconds max. - Wave Soldering: 260°C for 5 seconds max. - Cleaning: Compatible with standard alcohol-based cleaning agents if the seal is intact. ```