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Overview

A4040 HV Mid Torque High Speed Digital Micro MG Servo

The Spektrum A4040 digital micro, metal gear servo offers extraordinary performance for park flyer size (15-25 size) and specialty aircraft applications. High voltage capable, the A4040 can produce 7.0kg-cm (96 oz-in) of torque at 0.094 sec/60° speeds with 8.4V input. Its low-wear, metal gear drive train is powered by a coreless motor and bearing supported for smooth operation. The A4040 also features an aluminum center section case for efficient heat dissipation, plus low deadband and high resolution. Like all Spektrum servos, the A4040 delivers reliability, consistency and performance that are second to none.

  • High Voltage (HV) capable (4.8-8.4v input range)
  • Micro size is perfectly suited for parkflyer and sport size model aircraft
  • Aluminum servo case helps keep operating temperatures low
  • Low wear and tightly meshed all metal gear train
  • Bearing supported drive train helps maximize smooth operation

Features

  • High Voltage (HV) capable (4.8-8.4v input range)
  • Micro size is perfectly suited for parkflyer and sport size model aircraft
  • Class leading performance (7.0kg-cm and .094 sec/60° @8.4v)
  • Aluminum servo case helps keep operating temperatures low
  • Low wear and tightly meshed all metal gear train
  • Bearing supported drive train helps maximize smooth operation
  • Over Current and Temperature protection
  • Operating Frequency: 200hz to 333hz

Specs

Product Specs

Application
Airplane
Bearing
Single BB
Bushing Or Bearing
Bearing
Connector Type
Universal
Deadband
<1??s
Gear Type
Metal
Input Voltage
4.8V-8.4V
Maximum Servo Speed
0.16 sec/60 deg @ 6.0V; 0.12 sec/60 deg @ 7.4V; 0.10 sec/60 deg @ 8.4V
Maximum Servo Torque
84 oz-in (6.05kg-cm) @ 6.0V; 91 oz-in (6.55kg-cm) @ 7.4V; 96 oz-in (7kg-cm) @ 8.4V
Overload Protection
No
Product Application
Air
Product Height
1.23″ (31 mm)
Product Length
1.1″ (28 mm)
Product Weight
0.9oz (26g)
Product Width
0.54″ (14 mm)
Programmable
No
Prop 65
Prop 65 Warning Icon  California Residents Prop 65 WARNINGS.
Servo Operating Voltage
4.8 – 8.4V (HV)
Servo Size Category
Micro
Servo Type
Digital
Spline Count
23 – Tooth
Water-Resistant
No
Wire Gauge
22 AWG
Weight 5 kg