The **M2PP-14R-R** is a specific part number belonging to a series of **Rotary DIP Switches** manufactured by **Copal Electronics** (now Nidec Components). These switches are commonly used on Printed Circuit Boards (PCBs) to set configuration parameters, such as device IDs or operating modes. --- ## Technical Specifications The following table outlines the primary electrical and mechanical characteristics of the M2PP-14R-R: | Feature | Specification | | :--- | :--- | | **Switch Type** | Rotary DIP Switch | | **Output Code** | Complementary Code (14-position) | | **Number of Positions** | 14 | | **Actuator Style** | Flush (requires a screwdriver or tool) | | **Mounting Type** | Through-hole (PHT) | | **Contact Rating** | 100mA @ 5V DC (Switching), 100mA @ 50V DC (Non-switching) | | **Contact Resistance** | 100 mΩ maximum | | **Operating Temp** | -25°C to +70°C | --- ## Key Components & Design ### 1. Actuator and Coding The "14" in the part number indicates a 14-position layout. The "R" usually refers to the **Complementary Code**. Unlike standard Binary Coded Decimal (BCD), where the pins represent the value of the number selected, a complementary code provides the inverse logical state for each position. ### 2. Sealed Construction These switches are typically **washable**. They feature an O-ring or a sealed cover that prevents solder flux or cleaning solvents from entering the internal contact mechanism during the manufacturing process. ### 3. Contact Mechanism * **Gold-plated contacts:** To ensure high reliability and prevent oxidation over long periods. * **Wiping action:** Every time the switch is turned, the contacts "wipe" each other to remove any microscopic debris. --- ## Pinout and Logic Logic While the exact physical footprint depends on the package style (P-type stands for standard pin layout), a 14-position rotary switch generally utilizes a common pin and four or five data pins to represent the positions in binary or complementary binary format. ### Typical Applications * **Address Setting:** Assigning a unique ID to a sensor in a daisy-chained industrial network. * **Mode Selection:** Choosing between different firmware behaviors in embedded systems. * **Industrial Controls:** Setting timer durations or threshold levels on a control board.