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A4040 MT/HS Micro Metal Gear HV Servo

Item No.
Spektrum - SPMSA4040
$54.99
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Servo Arms

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Super Strength Standard Servo Arms: Spektrum 23T
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Aluminum Servo Arm, 1": SPM, JR
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Aluminum Servo Arm, 1": SPM, JR
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Aluminum Servo Arm, 1.5": SPM, JR
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Aluminum Servo Arm, 1.5": SPM, JR
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Aluminum Servo Arm, 2" (JR/SPM)
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Aluminum Servo Arm, 2" (JR/SPM)
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Aluminum Servo Arm, 2" (JR/SPM) (2)
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Aluminum Servo Arm, 2" (JR/SPM) (2)
HHDHAN9160
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Aluminum 1/2 Servo Arm 1.0"
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Aluminum 1/2 Servo Arm 1.0"
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Aluminum 1/2 Servo Arm 1.5"
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Aluminum 1/2 Servo Arm 1.5"
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Aluminum 1/2 Servo Arm 2.0"
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Aluminum 1/2 Servo Arm 2.0"
SPMSP3102
In Stock
$13.99
Aluminum Double Servo Arm 2.5"
SPMSA4040
Aluminum Double Servo Arm 2.5"
SPMSP3103
Next Shipment Date Unknown
$13.99
Aluminum Double Servo Arm 3.0"
SPMSA4040
Aluminum Double Servo Arm 3.0"
SPMSP3104
Next Shipment Date Unknown
$14.99
Aluminum Double Servo Arm 4.5"
SPMSA4040
Aluminum Double Servo Arm 4.5"
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In Stock
$16.99
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Servo Extensions

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Servo Extension Lead: 3" Heavy-Duty
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Servo Extension Lead: 3" Heavy-Duty
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Next Shipment January 2025
$6.99
Servo Extension Lead: 6" Heavy-Duty
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Servo Extension Lead: 6" Heavy-Duty
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Next Shipment January 2025
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Servo Extension Lead: 9" Heavy-Duty
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Servo Extension Lead: 9" Heavy-Duty
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In Stock
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Servo Extension Lead: 12" Heavy-Duty
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Servo Extension Lead: 12" Heavy-Duty
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Servo Extension Lead: 18" Heavy-Duty
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Servo Extension Lead: 18" Heavy-Duty
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In Stock
$7.99
Servo Extension Lead: 24" Heavy-Duty
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Servo Extension Lead: 24" Heavy-Duty
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In Stock
$8.99
Servo Extension Lead: 36" Heavy-Duty
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Servo Extension Lead: 36" Heavy-Duty
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In Stock
$9.99
Servo Extension Lead: 48" Heavy-Duty
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Servo Extension Lead: 48" Heavy-Duty
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In Stock
$10.99
Servo Extension Lead: 3" Standard
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Servo Extension Lead: 3" Standard
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Next Shipment January 2025
$5.99
Servo Extension Lead: 6" Standard
SPMSA4040
Servo Extension Lead: 6" Standard
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Next Shipment January 2025
$5.99
Servo Extension Lead: 9" Standard
SPMSA4040
Servo Extension Lead: 9" Standard
SPMA3052
In Stock
$9.99
Servo Extension Lead: 12" Standard
SPMSA4040
Servo Extension Lead: 12" Standard
SPMA3053
Next Shipment January 2025
$7.99
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Accessories

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Servo Connector Clips (25)
SPMSA4040
Servo Connector Clips (25)
SPMA3054
In Stock
$3.99
Socket Head Servo Mounting Screws (20)
SPMSA4040
Socket Head Servo Mounting Screws (20)
SPMA4042
Next Shipment January 2025
$3.99
Socket Head Metal Gear Servo Screws & Washers (6)
SPMSA4040
Socket Head Metal Gear Servo Screws & Washers (6)
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Next Shipment January 2025
$3.99
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Servo Drivers

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XBC100 Smart LiPo Battery Checker & Servo Driver
SPMSA4040
XBC100 Smart LiPo Battery Checker & Servo Driver
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In Stock
$49.99
0 of 1 Selected
Product $54.99
Add Ons
Estimated Total: $54.99
Estimated Total: $54.99
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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

Product Specs

Application
Airplane
Bearing
Single BB
Bushing Or Bearing
Bearing
Connector Type
Universal
Deadband
<1µs
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

Compatibility

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Product Details

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In The Box
  • (1) A4040 Micro Digital Servo
  • (4) Pre-installed Mounting Grommets and Eyelets With Hardware
  • (3) Plastic Servo Arms and (1) Screw
A4040 MT/HS Micro Metal Gear HV Servo