The **M2CE-1A-R2/CE** is a specialized electronic component, typically classified as a **Thermal Cut-off (TCO)** or a thermal fuse assembly, often utilized in power electronics, battery protection, or automotive heating systems. ### 1. Key Component Overview | Feature | Specification | | :--- | :--- | | **Part Type** | Thermal Cut-off (Thermal Protector) | | **Circuit Configuration** | 1A (Single Pole, Single Throw - Normally Closed) | | **Reset Type** | Non-resettable (One-shot) or Auto-reset (Depending on Series) | | **Compliance** | CE (Conformité Européenne) certified | --- ### 2. Functional Characteristics Electronic parts within this category are designed to provide safety against overheating. Here is a breakdown of the internal logic: * **Internal Element:** It contains a thermosensitive material (pellet or bimetal) that reacts to ambient temperature changes. * **Safety Interruption:** When the "M2CE" reaches its rated opening temperature, the internal contact opens, breaking the electrical circuit to prevent thermal runaway or fire. * **The "R2" Suffix:** Usually denotes a specific lead wire length, mounting orientation, or resistance rating (often 2.0 or 2.2 ohms in heater applications). --- ### 3. Typical Technical Specifications While exact specs vary by the specific manufacturer (often associated with brands like Matsuo or specific industrial suppliers), general parameters for this part include: 1. **Current Rating:** Typically rated between 2A to 15A depending on the voltage. 2. **Voltage Rating:** Commonly 125V AC or 250V AC for consumer electronics; low voltage DC for automotive. 3. **Operating Temperature:** Available in fixed ranges (e.g., 70°C to 150°C). 4. **Enclosure:** Usually features a ceramic or heat-resistant resin body to withstand high-temperature environments. --- ### 4. Common Applications * **Automotive:** Overheat protection for seat heaters or blower motor resistors. * **Power Supplies:** Secondary protection for transformers. * **Home Appliances:** Used in coffee makers, irons, and hair dryers as a final safety fail-safe. --- ### 5. Installation Note When soldering the M2CE series, it is critical to use a **heat sink** on the lead wires. Excessive heat from a soldering iron can accidentally trigger the thermal element, rendering the part useless before it is even installed. ---