The **M2MS-3-R** is a specific electronic hardware component primarily used in modular electronic packaging and PCB (Printed Circuit Board) mounting. It is categorized as a **Micro Jack** or a **Miniature Standoff/Socket**. Below is a detailed breakdown of its specifications and electronic characteristics. --- ### 1. General Overview The M2MS-3-R belongs to the family of **screw-machine terminals**. These are precision-machined components designed to provide a secure, low-resistance interface between electronic modules and a baseboard. ### 2. Technical Specifications | Feature | Specification | | :--- | :--- | | **Component Type** | Micro Jack / Miniature Standoff | | **Material** | Brass Alloy (typically) | | **Plating** | Gold over Nickel (R-suffix often denotes RoHS compliance) | | **Mounting Type** | Through-hole (Solder mount) | | **Inside Diameter** | Optimized for M2 or specific pin diameters | | **Length/Height** | 3mm (Standard reference) | --- ### 3. Key Electronic Functions * **Interconnectivity:** It serves as a female receptacle for male pins, allowing for the "plug-and-play" installation of sensors, daughtercards, or power modules. * **Electrical Conductivity:** Due to its brass construction and gold plating, it offers excellent electrical conductivity and high corrosion resistance, ensuring signal integrity over time. * **Mechanical Stability:** It acts as a structural support (standoff), maintaining a fixed distance between two PCBs to prevent electrical shorts. ### 4. Common Applications * **Daughterboard Integration:** Used on carrier boards to accept plug-in modules. * **Test Fixtures:** Employed in "bed-of-nails" testers where components need to be easily swapped. * **High-Reliability Electronics:** Found in aerospace or industrial equipment where standard plastic connectors might fail due to vibration or heat. ### 5. Part Number Breakdown (Typical) * **M2:** Refers to the metric thread or sizing (M2 standard). * **MS:** Often stands for "Micro Socket" or "Miniature Standoff." * **3:** Represents the length or height in millimeters. * **R:** Usually indicates **RoHS Compliance** (Lead-free). ---