The **G3B25AB-R-YC** is a high-quality, subminiature push-button switch manufactured by **NKK Switches**. It is specifically designed for logic-level applications and is known for its durability and surface-mount compatibility. --- ## 1. Technical Specifications Below are the primary electrical and physical parameters for the G3B25AB-R-YC: | Feature | Specification | | :--- | :--- | | **Switch Type** | Pushbutton | | **Circuit** | DPDT (Double Pole Double Throw) | | **Switch Function** | On-Mom (Momentary - springs back after press) | | **Current Rating** | 0.4VA Max @ 28V AC/DC Max (Logic Level) | | **Termination Style** | Gull Wing (Surface Mount) | | **Actuator Style** | Standard Round | | **Operating Force** | 2.00N (204gf) | | **Mechanical Life** | 50,000 Cycles | --- ## 2. Key Electronic Features ### Logic Level Switching This part is specifically rated for **0.4VA maximum at 28V**. This means it is designed for low-power signal switching rather than power distribution. The contacts are typically gold-plated to ensure reliability in low-energy circuits where oxidation could otherwise prevent a clean signal. ### Process Sealed Construction The "G3B" series features a fully sealed body. - **Washable:** The switch is designed to withstand automated soldering and subsequent high-pressure washing to remove flux without compromising the internal contacts. - **Heat Resistance:** The high-temperature resin housing allows it to endure infrared (IR) reflow soldering profiles. ### Contact Mechanism It utilizes a **sliding twin crossbar (STC)** contact mechanism. This provides: - Improved contact reliability. - A "self-cleaning" action every time the switch is actuated. - Highly stable logic-level output. --- ## 3. Physical Dimensions & Packaging The suffix **-YC** and **-R** denote specific physical configurations: * **-R:** Indicates "Tape and Reel" packaging, which is standard for high-volume automated SMT (Surface Mount Technology) assembly. * **-YC:** Refers to the specific color or material of the cap/accessory (typically a standard black or colored cap depending on the specific catalog variation). --- ## 4. Typical Applications Due to its small footprint and high reliability, this part is commonly found in: * Handheld medical devices. * Telecommunications equipment. * Industrial control panels (as reset or mode selection switches). * High-end consumer electronics.