The **CJS-1201TB** is a specific model of a **Slide Switch** manufactured by **Nidec Components** (formerly Copal Electronics). It is designed for surface mount technology (SMT) and is known for its sub-miniature profile. --- ### 1. Technical Specifications The following table summarizes the key electrical and mechanical characteristics of the CJS-1201TB: | Characteristic | Specification | | :--- | :--- | | **Switch Type** | Slide Switch | | **Circuit Type** | SPDT (Single Pole, Double Throw) | | **Switch Function** | ON-ON | | **Current Rating** | 100mA (at 6V DC) | | **Voltage Rating** | 6V DC / 12V DC (Lower current) | | **Mounting Type** | Surface Mount (SMD / SMT) | | **Actuator Type** | Top Actuated (Flush) | | **Contact Material** | Copper Alloy, Gold plated | | **Operating Temp** | -40°C to +85°C | --- ### 2. Key Features * **Sub-miniature Size:** Designed for high-density packaging on PCBs where space is at a premium. * **Reflow Solderable:** The materials used are heat-resistant, allowing the part to pass through standard automated reflow soldering ovens. * **Gold Contacts:** The use of gold plating ensures high reliability and prevents oxidation, making it suitable for low-voltage logic signals. * **Washable:** Many variants in this series are designed to be "washable" (sealed) to withstand board washing processes after soldering. --- ### 3. Physical Layout and Terminal Configuration The "1201" designation refers to the specific configuration of the internal circuit and physical throw. * **SPDT Logic:** It has one common terminal and two output terminals. Sliding the switch connects the common pin to one of the two flanking pins. * **Packaging (TB):** The "TB" suffix usually indicates the packaging style—specifically **Tape and Reel**—which is necessary for automated pick-and-place assembly machines. ### 4. Typical Applications Due to its small size and SPDT nature, it is commonly found in: 1. **Consumer Electronics:** Handheld devices, wearables, and remote controls. 2. **Industrial:** Setting DIP-style configurations on a miniaturized scale. 3. **Medical:** Portable diagnostic equipment. 4. **Telecom:** Selecting modes or frequencies on compact circuit boards. ---