The **MH25FAG-R** is a specific electronic component typically categorized as a **Micro-Switch** or **Snap Action Switch**, commonly manufactured by brands like **C&K** or **Zippy**. These switches are designed for high reliability in detecting mechanical movement or position. --- ### 1. Key Technical Specifications The following table summarizes the general electrical and physical characteristics of the MH series snap-action switches: | Feature | Specification | | :--- | :--- | | **Switch Type** | Snap Action / Micro Switch | | **Actuator Style** | Simulated Roller Lever (typically) | | **Circuitry** | SPDT (Single Pole Double Throw) | | **Current Rating** | ~0.1A to 10A (Model dependent, usually 5A for "25" series) | | **Voltage Rating** | 125V / 250V AC | | **Operating Force** | ~25gf to 150gf | | **Termination** | PCB Solder Terminals / Right Angle Pins | --- ### 2. Physical Construction and Pins The "R" suffix in the part number often indicates the **Right Angle** orientation of the terminals, making it suitable for side-mounting on a Printed Circuit Board (PCB). 1. **Housing:** Made of high-temperature thermoplastic (usually UL 94V-0 rated). 2. **Contacts:** Silver alloy or gold-plated (for low-current signal switching). 3. **Terminals:** * **COM (Common):** The input pin. * **NO (Normally Open):** The circuit is completed when the lever is pressed. * **NC (Normally Closed):** The circuit is completed when the lever is at rest. --- ### 3. Functional Mechanism The MH25FAG-R utilizes a **snap-action mechanism**. This means that the movement of the contacts is independent of the speed of the actuator. When the lever reaches a specific "trip point," the internal spring snaps the contacts into the new position instantly. **Applications include:** * **Computer Peripherals:** Mouse buttons or joystick triggers. * **Industrial:** Limit switches for moving parts. * **Consumer Electronics:** Door sensors in microwave ovens or printers. --- ### 4. Part Number Breakdown (Typical) | Segment | Meaning | | :--- | :--- | | **MH** | Series designation (Micro-miniature High Reliability) | | **25** | Rating code (Internal manufacturer current/force code) | | **F** | Operating force identifier | | **AG** | Contact material (e.g., Gold over Silver) | | **-R** | Right-angle PCB terminal orientation |