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The A5070 Mini Brushless Servo provides outstanding performance in a mini package. More than just an aircraft servo, the A5070 is great for a wide variety of RC needs, from precision driven 1/12 scale cars to pro-tuned pylon racers.

Image for A5070 High Torque High Speed Mini MG HV Servo from HorizonHobby
A5070 High Torque High Speed Mini MG HV Servo A5070 High Torque High Speed Mini MG HV Servo A5070 High Torque High Speed Mini MG HV Servo
  • Overview
  • Specs
  • Reviews
  • Parts & Accessories
  • Manuals & Support

Key Features

  • High torque both on HV and non-HV applications
  • Allows BECs of adjustable BEC ESCs to be set higher to increase performance
  • Acts as a heat sink for the motor and ESC
  • Low deadband, high resolution, with impressive holding torque for unmatched performance
  • Durable high performance finish

Overview

Spektrum high-voltage, brushless servos deliver dependable power and digital precision with amazing efficiency. Finely tuned electronics and software integrate with powerful brushless motor technology to offer ultra-smooth, high-speed performance more efficiently than servos with conventional motors. The all-aluminum case provides the ultimate solution in durability and heat dissipation, while precision metal gears complete a satisfaction package even the most critical pilot can appreciate.

The Spektrum A5070 mini servo uses this solid foundation to achieve a whopping 190 oz/in of torque* and high transit speeds of .07 sec* in addition to its outstanding balance of durability, value, plus the peace-of-mind that sophisticated error correction and over-current/temperature protection offers. It’s an impressive feature combination that makes this mighty servo an outstanding airplane or heli servo choice.


Application: Airplane or Heli
Bearing: Dual
Bushing Or Bearing: Bearing
Connector Type: Z-Connector
Connector Wire Gauge: 22 AWG
Connector Wire Length: 11.8 in (300mm)
Control System: PWM
Deadband: 2µs
Gear Material: Metal
Gear Type: Metal
Height: 1.16 in (29.4mm)
Input Voltage: 6.0V to 8.4V
Length: 1.32 in (33.5mm)
Motor Type: Brushless
Overload Protection: Yes
Programmable: No
Rotation Range: 120º
Servo Type: Digital
Speed: 0.094 sec/60 deg @6.0V; 0.078 sec/60 deg @ 8.4V
Spline Count: 23 Teeth
Torque: 146.43 oz-in @6.0V; 190.58 oz-in @ 8.4V
Type: High-Torque High-Speed Metal Gear HV Digital Servo
Weight: 1.4 oz (40g)
Width: 0.59 in (14.9mm)

Manuals

FAQs

What's the difference between digital and analog servos?

Digital and analog servos have very similar construction and components. They both use the same type of motors, gears, cases, and have a potentiometer. A digital servo is different in the way it processes the incoming signal and converts that signal into servo movement. 

An analog servo when it receives a command to move, takes that signal and sends pulses to the servo motor at about 50 cycles per second, which in turn moves the motor to its required position determined by the potentiometer.

A digital servo has a micro-processor that receives the signal and then adjusts the pulse length and amount of power to the servo motor to achieve optimum servo performance and precision. A digital servo sends these pulses to the motor at a much higher frequency which is around 300 cycles per second. This helps eliminate deadband, provides a faster response to the servo motor, smoother motor movement, and has higher resolution and holding power than an analog servo.

There are some disadvantages to digital servos, but the disadvantages are not in any way close to out weighing the advantages. A digital servo will have a higher power consumption (Around 10 to 15 mAh per servo at idle) than an analog servo due to its higher pulse frequency, so larger capacity battery packs are recommended. Digital servos also are more expensive than analog servos which can get very costly in applications that require many servos.

What grease should I use on my servo gear train?

For JR servos we recommend Tamiya ceramic grease (TAM87025).

Why doesn't my servo center properly?

There are several scenarios which may attribute to this problem. 

1. The servo arm fit on the output spline may be loose.

2. There may be slop or wear in the gear train.

3. There may be slop or binding in the linkages.

4. You may have a faulty servo saver.

5 The push rods may be too flexible.

6. Improperly mounted servo (screws too tight, mounting rail too tight against the servo)

7. Faulty extention, damaged lead or dirty connector.

8. Worn or dirty pot.

Can I use a JR servo with a Futaba receiver?

Yes

Why can't you use the JR 8700G servo with FM?

The frequency on operation is so high that it feeds back with FM receivers.

Product Support Tips

Product Support

Technical questions about this Spektrum product should be directed to Horizon Hobby's Product Support Department:

Horizon Hobby, LLC.
ATTN: Product Support

2904 Research Road
Champaign, IL 61822


To place a Horizon Hobby Support Inquiry please visit our Inquiry Form Support Phone:(877) 504-0233
Fax:(217) 355-1552

Sales Support

If you would like to purchase this product, please go to the Store Locator or contact the Horizon Hobby Consumer Sales Department:

Horizon Hobby, LLC.
ATTN: Consumer Sales

2904 Research Road
Champaign, IL 61822
Email: Sales Phone:(800) 338-4639
Fax:(217) 355-1552