The **M2TS-51-R** is a high-performance, double-pole double-throw (DPDT) sub-miniature toggle switch, often utilized in precision instrumentation and industrial controls. ### Technical Specifications The following table outlines the primary electrical and mechanical characteristics of the M2TS-51-R: | Characteristic | Specification | | :--- | :--- | | **Contact Form** | DPDT (Double Pole Double Throw) | | **Switch Function** | ON-ON | | **Current Rating** | 6A @ 125VAC / 3A @ 250VAC | | **Contact Resistance** | 10 mΩ Max | | **Insulation Resistance** | 1000 MΩ Min @ 500VDC | | **Dielectric Strength** | 1500 VAC for 1 minute | | **Mechanical Life** | 100,000 Cycles | | **Terminal Type** | Solder Lug / PC Pin (Depending on sub-variant) | --- ### Core Electronic Components and Materials The performance of the M2TS-51-R relies on several key physical parts: #### 1. Contact System The internal contacts are typically composed of **silver-plated copper** or **gold-over-silver**. * **Silver:** Provides excellent conductivity and is ideal for power applications. * **Gold:** Prevents oxidation and is preferred for "dry circuit" (low voltage/low current) logic switching. #### 2. Actuator (Toggle) The lever is usually made of chrome-plated brass. Internally, it compresses a spring-loaded plunger that moves the "rocker" or "bridge" across the stationary contacts to complete the circuit. #### 3. Housing and Base * **Case:** Often molded from Diallyl Phthalate (DAP) or high-temp UL94V-0 plastic. These materials provide high dielectric strength and heat resistance during soldering. * **Seal:** Many versions include an internal O-ring or epoxy terminal seal to prevent flux contamination during the manufacturing process. ### Circuit Diagram Representation In a schematic, the M2TS-51-R (DPDT) is represented as follows: ```text Common 1 (C1) Common 2 (C2) / / / / L1 L2 L3 L4 (Pos 1) (Pos 2) (Pos 1) (Pos 2) ``` --- ### Common Applications Due to its compact size and high reliability, this part is commonly found in: * **Telecommunications:** Signal routing. * **Medical Equipment:** Mode selection in handheld devices. * **Audio Gear:** Bypass switches in effect pedals or mixers. * **Industrial Control:** Manual override switches for PLC inputs.