The **MA72TBG-R** is a specific part number typically associated with professional-grade electronic switches, specifically a **Miniature Toggle Switch** manufactured by **Copals Electronics** (a Nidec Group company). Below is a detailed breakdown of its electronic specifications and characteristics. --- ### 1. General Specifications The MA series is designed for high reliability and durability in industrial and telecommunications applications. | Parameter | Specification | |:---|:---| | **Contact Configuration** | DPDT (Double Pole, Double Throw) | | **Switching Function** | ON - ON | | **Terminal Type** | PC Terminal (Straight) | | **Contact Rating** | 6A @ 125VAC / 3A @ 250VAC / 4A @ 30VDC | | **Mechanical Life** | 50,000 cycles | | **Electrical Life** | 25,000 cycles | --- ### 2. Key Features and Construction The suffix **-R** indicates that the product is **RoHS Compliant**. * **Miniature Size:** The "MA" prefix identifies it as part of the miniature toggle family, allowing for high-density mounting on Printed Circuit Boards (PCBs). * **Sealed Body:** These switches are often built with epoxy sealing at the terminals to prevent flux or contaminants from entering the switch mechanism during soldering. * **High Reliability:** Uses high-grade silver or gold-plated contacts (depending on the specific sub-variant) to ensure low contact resistance over time. --- ### 3. Electrical Characteristics Detailed electrical limits for safe operation: | Feature | Value | |:---|:---| | **Contact Resistance** | 10 mΩ maximum | | **Insulation Resistance** | 1,000 MΩ minimum (at 500VDC) | | **Dielectric Strength** | 1,500 VAC for 1 minute | | **Operating Temperature** | -20°C to +85°C | --- ### 4. Circuit Diagram (DPDT) The DPDT configuration means the switch controls two separate circuits simultaneously. Each "pole" has a common pin that toggles between two output pins. ```text Circuit 1 Circuit 2 [1] --- [2] (COM) [4] --- [5] (COM) [2] --- [3] [5] --- [6] ``` ---