The **M2SES-2AA-R** is a specific electronic component belonging to the category of **Battery Holders**. It is designed specifically for standard AA batteries. --- ### 1. Key Specifications Below are the technical details for the M2SES-2AA-R: | Parameter | Specification | |:---|:---| | **Battery Cell Size** | AA (Double A) | | **Number of Cells** | 2 Cells | | **Connection Style** | Solder Lugs / Pressure Contacts | | **Mounting Type** | Surface Mount (SMT) / Printed Circuit Board (PCB) | | **Contact Material** | Spring Steel (usually Nickel plated) | | **Housing Material** | Polypropylene or Nylon (High-Temp) | | **Termination** | Solder Tab | --- ### 2. Functional Design The part is engineered to provide a secure mechanical and electrical interface for portable power. * **Polarity Protection:** The internal moldings are typically shaped to ensure the battery can only make contact when inserted in the correct orientation. * **Physical Retention:** The "R" suffix often denotes a specific packaging type (like Tape & Reel) or a reinforced retention clip that prevents the battery from falling out during high-vibration applications. * **Series Configuration:** This specific model connects the two AA batteries in **series**, providing a nominal output of **3V** (1.5V x 2). --- ### 3. Common Applications Due to its form factor and mounting style, the M2SES-2AA-R is frequently used in: 1. **Handheld Devices:** Remote controls, portable testers, and toys. 2. **Backup Power:** Maintaining CMOS memory or RTC (Real-Time Clock) settings in industrial computers. 3. **IoT Sensors:** Low-power wireless nodes that require long-term 3V power supplies. --- ### 4. Mounting Considerations When integrating this part into a PCB design, keep the following in mind: ```markdown * Footprint: Ensure the solder pad dimensions match the manufacturer's datasheet to prevent tombstoning. * Heat Resistance: Since it is an SMT-capable part, the plastic housing is rated for reflow soldering temperatures. * Clearance: Allow for "finger room" in the enclosure design so users can easily replace the batteries. ```