Physical dimensions are compact: (1.26 x 0.45 x 0.94 in), with a weight of 12 grams . This “sub-micro” form factor adheres to the standard 3x screw hole pattern, allowing drop-in replacement for many 9g-class servos despite its heavier metal construction. Thermal and Durability Considerations Critically, the datasheet lists an operating temperature range of -10°C to +60°C (14°F to 140°F). The metal case (the top shell is aluminum alloy) acts as a heat sink for the internal DC motor and control IC. Users pushing the servo near its stall torque must observe this limit; above 60°C, the epoxy on the motor windings can degrade, and the feedback potentiometer’s wiper may wear non-linearly. Limitations and Application Fit No datasheet is complete without acknowledging trade-offs. The ES08MA II is not waterproof , and its analog control loop makes it less suitable for high-vibration environments where a digital servo’s holding power would resist flutter. Furthermore, the stall current of 800mA is nearly double that of a plastic-gear equivalent, requiring a more robust power regulator on flight controllers or Arduino shields. Conclusion The Emax ES08MA II datasheet tells the story of an evolutionary upgrade—not revolutionary, but meticulously refined. By specifying metal gears and a ball bearing in a 12-gram package, Emax addressed the single greatest point of failure in micro servos. For the engineer or hobbyist building a combat robot, a 3D-printed animatronic, or a fixed-wing RC model, this datasheet provides the necessary proof that the ES08MA II offers superior mechanical resilience at a modest electrical cost. It remains a gold standard in its class, where the three most important specifications are torque, durability, and price—in that order. Note: For absolute values, pinout diagrams, and dimensional tolerances, refer to the official Emax ES08MA II datasheet provided by the manufacturer.