The **M5MV-00-R** is a specific electronic component within the **Crouzet M5 series** of sub-miniature microswitches. These switches are widely used in industrial controls, appliances, and automotive systems where high reliability is required in a small form factor. --- ## 1. Core Technical Specifications The M5MV-00-R is a single-pole, double-throw (SPDT) microswitch designed for low-force actuation and long mechanical life. | Parameter | Specification | |:---|:---| | **Manufacturer** | Crouzet | | **Switch Function** | SPDT (Single Pole Double Throw) | | **Actuator Type** | Pin Plunger (Basic) | | **Current Rating** | 5 Amperes (at 250V AC) | | **Contact Material** | Silver Nickel (AgNi) | | **Terminal Type** | Solder Terminals | | **Operating Force** | ~0.50 N (Approx. 50g) | | **Mechanical Life** | Up to 10,000,000 cycles | --- ## 2. Component Construction The "electronic parts" of this switch consist of the following internal and external elements: ### Internal Mechanism * **Snap-Action Spring:** A beryllium copper or stainless steel spring that ensures a rapid change over of contacts, regardless of the speed of the physical actuator. * **Stationary Contacts:** Two fixed points (Normally Open and Normally Closed) that provide the electrical connection paths. * **Moving Contact:** The bridge that pivots between the two stationary contacts. ### External Housing * **Case Material:** High-grade thermoplastic (often Polyamide or PBT) capable of withstanding high temperatures and providing electrical insulation. * **Plunger:** The interface between the mechanical movement and the internal spring. --- ## 3. Terminal Configuration (SPDT) The M5MV-00-R uses three terminals to allow for flexible circuit integration: 1. **COM (Common):** The input terminal. 2. **NC (Normally Closed):** The circuit is closed when the plunger is at rest. 3. **NO (Normally Open):** The circuit is open when at rest and closes when the plunger is pressed. --- ## 4. Key Applications Due to its sub-miniature size and 5A rating, it is commonly found in: * **End-of-travel sensors** for small CNC machines or 3D printers. * **Door interlocks** in microwave ovens or small appliances. * **Control panels** where space is restricted but high current switching is needed. ---