| Feature | ES08MA (V1) | ES08MA II | | :--- | :--- | :--- | | Gear material | Metal | Metal (improved alloy) | | Potentiometer | Standard | Higher linearity | | Case screws | Steel (rust-prone) | Black-coated / stainless | | Price | Slightly lower | Slightly higher |
While this article covers 99% of what you need, the original manufacturer’s datasheet (as a PDF) can be sourced from:
Datasheet document number: EMAX-ES08MAII-V2.1 (latest revision as of 2024)
Given its specifications, this servo excels in:
No datasheet is complete without the dimensional diagram. While we cannot embed an image here, the critical physical measurements are:
| Voltage | Torque (oz-in) | Torque (kg-cm) | | :--- | :--- | :--- | | 4.8V | 21.7 oz-in | 1.6 kg-cm | | 6.0V | 25.0 oz-in | 1.8 kg-cm |
Interpretation: 1.8 kg-cm is respectable for a 13-gram servo. This means the servo can hold a weight of 1.8 kilograms at the end of a 1 cm horn. Practically, for a 5 cm horn, it can lift roughly 360 grams. This is ideal for small robotic grippers or micro RC car steering. Emax Es08ma Ii Datasheet
The EMAX ES08MA II is a compact, affordable micro servo with metal gears suitable for many hobby and light-robotics applications where improved gear durability and modest torque are required. Verify exact specifications from your vendor if you need precise stall torque, dimensions, or current draw for critical designs.
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The EMAX ES08MA II is a 12-gram analog micro servo featuring metal gears designed for high-stress applications in RC aircraft and robotics. Operating between 4.8V and 6.0V, it provides up to 2.0 kg.cm of stall torque with high durability compared to plastic-geared alternatives. For detailed specifications and technical data, you can consult the manufacturer's official documentation.
The EMAX ES08MA II Go to product viewer dialog for this item.
is a widely used 12g high-torque analog micro servo featuring a full metal gear train. It is designed for reliability in RC models, including aircraft, gliders, and small robots. Technical Specifications Specification Servo Type Gear Material Operating Voltage 4.8V – 6.0V Stall Torque 1.6 kg.cm @ 4.8V | 2.0 kg.cm @ 6.0V Operating Speed 0.12 sec/60° @ 4.8V | 0.10 sec/60° @ 6.0V Dimensions 23.0 x 11.5 x 24.0 mm Weight 12.0g (0.42 oz) Dead Band 1–2 μsec Plug Type Futaba / JR Universal Operational Features
Direction of Rotation: Counter-clockwise (standard) for pulse traveling from 1500 to 1900 μsec. Connector Wire: Approximately 25 cm (9.8 in) standard lead. | Feature | ES08MA (V1) | ES08MA II
Operating Current: Typically 200mA at a 60° rotation speed.
Compatibility: Works with standard RC receivers and microcontrollers like Raspberry Pi or Arduino for robotics. Performance Insights
Durability: Expert and user feedback from sources like Amazon highlights its metal gears as a major strength for high-stress applications.
Response: Known for smooth operation and low backlash due to its dual-bearing system.
Mounting: The compact size makes it a popular choice for replacing stock servos in 1/24 scale crawlers (e.g., Axial SCX24). Variants Note that a High Voltage (HV) version exists, the EMAX ES08MA II HV Go to product viewer dialog for this item.
, which supports up to 8.4V and offers higher torque (up to 2.4 kg.cm). Datasheet document number: EMAX-ES08MAII-V2
The EMAX ES08MA II is a high-performance, ultra-compact analog micro servo widely utilized in RC aviation, robotics, and small-scale automotive projects. Renowned for its durability, this servo features a full metal gear train housed in a 12g form factor, making it a reliable choice for high-stress applications like 450-class helicopter cyclic controls or 1/24 scale crawler steering. Core Technical Specifications
The following data outlines the operational parameters of the EMAX ES08MA II under standard conditions. EMAX ES08MA II 12G analog servo drive with metal gearbox
Characteristics * Working voltage: 4.8V ~ 6.0V. * Operating current: 200mA. * Speed: 0.12sec / 60g at 4.8V; 0.10sec / 60g at 6V. * Amazon.com
| Feature | ES08A | ES08MA (v1) | ES08MA II | |---------|-------|-------------|----------------| | Gear material | Nylon | Metal | Metal | | Torque @6V | 1.6 kg·cm | 1.7 kg·cm | 1.8 kg·cm | | Speed @6V | 0.12 s/60° | 0.11 s/60° | 0.10 s/60° | | Centering accuracy | ±2° | ±1.5° | ±1° | | Potentiometer | Standard | Standard | Improved linearity |
#include <Servo.h>Servo myServo;
void setup() myServo.attach(9); // Signal on pin 9 // The Servo library automatically uses 5-10 microsecond dead band
void loop() myServo.write(0); // 1.0ms pulse (CCW) delay(1000); myServo.write(90); // 1.5ms pulse (Center) delay(1000); myServo.write(180); // 2.0ms pulse (CW) delay(1000);