The **G3T19AB-R** is a specific electronic component, typically categorized as a **Miniature Toggle Switch** manufactured by **NKK Switches**. It is part of the G3T series, known for being surface-mount (SMT) compatible and designed for logic-level applications. --- ### 1. Key Technical Specifications The following table summarizes the primary electrical and physical characteristics of the G3T19AB-R: | Feature | Specification | | :--- | :--- | | **Switch Function** | SPDT (Single Pole Double Throw) | | **Circuit Type** | ON-OFF-ON | | **Contact Rating** | 0.4VA max @ 28V AC/DC max | | **Mounting Type** | Surface Mount (SMT) - Gull Wing | | **Actuator Style** | Standard Lever (Toggle) | | **Terminal Material** | Copper Alloy with Gold Plating | | **Operating Temp** | -30°C to +85°C | --- ### 2. Physical Design and Construction The "G3T" series is engineered specifically for automated assembly processes. * **Heat Resistance:** The body is constructed from high-heat resistant resin (Polyamide), allowing it to withstand vapor phase and infrared convection reflow soldering. * **Gold Contacts:** Because it is rated for 0.4VA (Logic Level), the contacts are gold-plated to ensure reliability in low-energy circuits where oxidation could otherwise cause failure. * **Sealed Structure:** It features an internal O-ring and ultrasonic welding to prevent flux or cleaning solvents from entering the contact area during the soldering process. --- ### 3. Part Number Breakdown Understanding the nomenclature helps identify the exact variant: 1. **G3T**: Series Identifier (Process Compatible SMT Toggles). 2. **19**: Circuit code for SPDT (Single Pole Double Throw) with ON-OFF-ON functionality. 3. **A**: Actuator type (Standard Toggle). 4. **B**: Contact Material (Gold). 5. **R**: Packaging (Tape & Reel). --- ### 4. Typical Applications Due to its small footprint and logic-level rating, the G3T19AB-R is commonly found in: * **Handheld devices** requiring mode selection. * **Telecommunications equipment** (reset or configuration switches). * **Medical instrumentation** where space is limited. * **Industrial control panels** for low-power signal switching. ---