The **G3T19AP-R** is a specific model of an ultra-miniature toggle switch manufactured by **NKK Switches**. It belongs to the **G3T series**, which is known for its high reliability and suitability for surface-mount technology (SMT) applications. --- ### ## Technical Specifications Overview The following table outlines the primary electrical and physical characteristics of the G3T19AP-R: | Feature | Specification | | :--- | :--- | | **Manufacturer** | NKK Switches | | **Circuit Configuration** | SPDT (Single Pole Double Throw) | | **Switch Function** | ON-OFF-ON (Three positions) | | **Current/Voltage Rating** | 0.4VA Max @ 28V AC/DC (Logic Level) | | **Mounting Type** | Surface Mount (SMT) - Gull Wing Leads | | **Actuator Type** | Standard Lever | | **Contact Material** | Gold (Logic Level) | | **Operating Temperature** | -30°C to +85°C | --- ### ## Key Electronic Components & Design Features #### 1. Logic Level Contacts Unlike power switches, the G3T19AP-R is designed for **Logic Level** applications. It uses gold-plated contacts to prevent oxidation and ensure a stable electrical connection when switching very low voltages and currents. It is not designed to handle high-wattage power loads. #### 2. Sealed Construction The switch features a fully sealed body. This is critical for electronic manufacturing because it allows the part to undergo **automated wave soldering** and **aqueous cleaning** (washing off flux) without contaminants entering the internal contact mechanism. #### 3. Heat Resistant Resin The housing is constructed from high-grade heat-resistant resin. This allows the part to survive the high temperatures of **Reflow Soldering** processes common in modern PCB assembly. #### 4. SPDT ON-OFF-ON Logic * **ON (Position 1):** Connects the common pin to the first output. * **OFF (Center):** No electrical connection is made (open circuit). * **ON (Position 2):** Connects the common pin to the second output. --- ### ## Applications Because of its small footprint and SMT design, it is commonly used in: * Handheld medical devices. * Telecommunications equipment. * High-density control panels. * Logic-level signal switching in embedded systems.