Emax Es08ma Ii Datasheet -

EMAX ES08MA II — Overview & Detailed Datasheet Article

Introduction

The EMAX ES08MA II is a widely used micro metal-geared servo designed for radio-controlled models, robotics, and hobby electronics where compact size, moderate torque, and precise control are required. It offers an upgraded metal gear train, improved durability, and reliable performance for micro applications such as small airplanes, helicopters, multirotors, RC cars, and miniature robot joints.

#include <Servo.h>
7.3 Arduino & Raspberry Pi Projects

Pan-tilt camera mounts
Automated feeders
Humanoid hand prototypes

Part 7: Common Failure Modes & How to Avoid Them
Even a robust metal-gear servo can fail. Here is how to interpret the datasheet to prevent disasters. Emax Es08ma Ii Datasheet
5. Key Features & Benefits

Metal gears provide significantly higher impact resistance than the ES08A (plastic gear) version.
Drop-in replacement for any standard micro servo mount (Futaba S3114 / Hitec HS-55 pattern).
Low idle current (5–8 mA) – suitable for battery‑powered robotics.
Consistent centering within ±1° due to improved potentiometer and amplifier.

Part 1: Overview – What is the Emax ES08MA II?
The Emax ES08MA II is an upgraded version of the classic ES08A. The most significant change is the gear train. While the original ES08A used nylon gears, the "MA" designation signifies Metal gears (specifically brass and aluminum), while the "II" indicates the second generation of this metal-geared design. EMAX ES08MA II — Overview & Detailed Datasheet
Disclaimer: Specifications are based on manufacturer datasheets (Emax Model) and third-party testing. Always refer to the official datasheet for production-critical applications. Part 7: Common Failure Modes & How to
| Parameter | 4.8V Performance | 6.0V Performance |
| :--- | :--- | :--- |
| Stall Torque | 1.6 kg·cm (22.2 oz·in) | 2.0 kg·cm (27.8 oz·in) |
| Speed (no load) | 0.10 sec/60° | 0.08 sec/60° |
| Running Current (no load) | 180 – 220 mA | 220 – 280 mA |
| Stall Current (peak) | 700 – 800 mA | 800 – 1000 mA |
| Temperature Rise (stall) | ~30°C in 5 sec | ~40°C in 5 sec |
Introduction