The **M2AS1-5443-R2/N** is a specific part number belonging to the **M2AS series** of board-to-board connectors, typically manufactured by companies like **IRISO Electronics**. These components are engineered for high-reliability applications, particularly in automotive and industrial sectors. --- ### 1. Key Technical Specifications Based on the standard nomenclature for this series, here are the primary electronic and physical characteristics: | Feature | Specification | | :--- | :--- | | **Connector Type** | Board-to-Board (Floating Type) | | **Number of Pins** | 44 Pins | | **Pitch** | 0.5 mm | | **Mounting Type** | Surface Mount (SMT) | | **Gender** | Plug (Male) | | **Orientation** | Vertical (Straight) | | **Special Feature** | Floating Mechanism (X, Y, and Z axes) | --- ### 2. The "Floating Mechanism" Advantage The most critical electronic/mechanical aspect of the **M2AS** series is its "Floating" structure. This design provides several benefits: 1. **Alignment Compensation:** It can absorb misalignments during the assembly process (usually up to ±0.5mm in X and Y directions). 2. **Stress Relief:** It reduces the stress on the Solder Joints caused by vibrations or thermal expansion, which is vital for long-term reliability in automotive ECUs (Electronic Control Units). 3. **Multiple Connector Support:** Allows for the use of multiple board-to-board connectors on a single PCB without the risk of mechanical binding. --- ### 3. Electrical Performance While specific data can vary slightly by sub-revision, the general electrical ratings for this part include: * **Current Rating:** Approx. 0.5A per pin. * **Voltage Rating:** 50V AC/DC. * **Insulation Resistance:** 100MΩ minimum. * **Dielectric Withstanding Voltage:** 250V AC for 1 minute. * **Operating Temperature:** Typically -40°C to +105°C (Automotive Grade). --- ### 4. Part Number Breakdown (Estimated) | Segment | Meaning | | :--- | :--- | | **M2AS** | Series Name (Floating Board-to-Board) | | **1** | Design Revision / Sequence | | **544** | Contact code (often indicates 44 pins) | | **3** | Plating or Height Variation | | **R2** | Packaging (often Tape & Reel) | | **N** | Environmental Compliance (e.g., Lead-free/Halogen-free) | --- ### 5. Common Applications * **Automotive:** Infotainment systems, ADAS sensors, and Powertrain control units. * **Industrial:** Robotics, PLC controllers, and high-vibration machinery. * **Consumer:** High-end office automation equipment.