The **M2CEC-21501-R** is a specific part number primarily associated with **JST (Japan Solderless Terminals)**. It belongs to the **M2C series**, which is a high-density, board-to-board connector system typically used in automotive and industrial electronics. --- ### 1. Key Technical Specifications Based on the standard nomenclature for the M2C series, here are the general technical parameters: | Parameter | Specification | | :--- | :--- | | **Connector Type** | Board-to-Board (Male/Female depending on assembly) | | **Pitch** | 2.0 mm (Standard for M2C series) | | **Number of Circuits** | 15 (Indicated by the "15" in the part number) | | **Current Rating** | ~2A AC/DC (Dependent on wire gauge/PCB trace) | | **Voltage Rating** | 250V AC/DC | | **Temperature Range** | -40°C to +125°C (Automotive Grade) | | **Mounting Type** | Through-hole or SMT (Series specific) | --- ### 2. Component Composition The part number breaks down into several functional electronic components: 1. **Housing:** Made of high-temperature resistant plastic (usually LCP or PBT) to withstand soldering and harsh environments. 2. **Contacts:** Copper alloy base material, often plated with **Tin (Sn)** or **Gold (Au)** to ensure low contact resistance and prevent oxidation. 3. **Retention Mechanism:** Features a locking structure (friction lock or positive lock) to prevent accidental disconnection due to vibration. --- ### 3. Applications The "CEC" designation often refers to components compliant with specific automotive electronics standards. Common use cases include: * **Automotive Infotainment:** Connecting display panels to main control boards. * **ECU Interfaces:** Internal board stacking within Electronic Control Units. * **Industrial Automation:** High-reliability signal transmission in PLC modules. --- ### 4. Part Number Breakdown (Estimated) | Segment | Meaning | | :--- | :--- | | **M2C** | Series Name (High-density Board-to-Board) | | **EC** | Specialized Configuration (often regarding orientation or locking) | | **215** | Typically denotes 15 circuits/pins | | **01** | Variation/Revision code | | **-R** | RoHS Compliant / Reel Packaging | ---