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3.9 out of 5 Customer Rating

A4040 MT/HS Micro Metal Gear HV Servo

Item No. SPMSA4040
Brand Logo
3.9 out of 5 Customer Rating

A4040 MT/HS Micro Metal Gear HV Servo

Item No. SPMSA4040
$54.99
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Super Strength Long Servo Arm: Spektrum 23T
SPMSA4040 DUB671
Super Strength Long Servo Arm: Spektrum 23T
In Stock
$16.42
Super Strength Standard Servo Arms: Spektrum 23T
SPMSA4040 DUB674
Super Strength Standard Servo Arms: Spektrum 23T
In Stock
$13.27
Aluminum Servo Arm, 1": SPM, JR
SPMSA4040 HAN9151
Aluminum Servo Arm, 1": SPM, JR
In Stock
$10.99
Aluminum Servo Arm, 1.5": SPM, JR
SPMSA4040 HAN9154
Aluminum Servo Arm, 1.5": SPM, JR
Next Shipment December 2024
$11.99
Aluminum Servo Arm, 2" (JR/SPM)
SPMSA4040 HAN9160
Aluminum Servo Arm, 2" (JR/SPM)
In Stock
$11.99
Aluminum Servo Arm, 2" (JR/SPM) (2)
SPMSA4040 HHDHAN9160
Aluminum Servo Arm, 2" (JR/SPM) (2)
In Stock
$19.98
Aluminum 1/2 Servo Arm 1.0"
SPMSA4040 SPMSP3100
Aluminum 1/2 Servo Arm 1.0"
In Stock
$9.99
Aluminum 1/2 Servo Arm 1.5"
SPMSA4040 SPMSP3101
Aluminum 1/2 Servo Arm 1.5"
In Stock
$9.99
Aluminum 1/2 Servo Arm 2.0"
SPMSA4040 SPMSP3102
Aluminum 1/2 Servo Arm 2.0"
In Stock
$13.99
Aluminum Double Servo Arm 2.5"
SPMSA4040 SPMSP3103
Aluminum Double Servo Arm 2.5"
Next Shipment Date Unknown
$13.99
Aluminum Double Servo Arm 3.0"
SPMSA4040 SPMSP3104
Aluminum Double Servo Arm 3.0"
Next Shipment Date Unknown
$14.99
Aluminum Double Servo Arm 4.5"
SPMSA4040 SPMSP3105
Aluminum Double Servo Arm 4.5"
In Stock
$16.99
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Servo Extension Lead: 3" Heavy-Duty
SPMSA4040 SPMA3000
Servo Extension Lead: 3" Heavy-Duty
Next Shipment January 2025
$6.99
Servo Extension Lead: 6" Heavy-Duty
SPMSA4040 SPMA3001
Servo Extension Lead: 6" Heavy-Duty
Next Shipment January 2025
$6.99
Servo Extension Lead: 9" Heavy-Duty
SPMSA4040 SPMA3002
Servo Extension Lead: 9" Heavy-Duty
In Stock
$6.99
Servo Extension Lead: 12" Heavy-Duty
SPMSA4040 SPMA3003
Servo Extension Lead: 12" Heavy-Duty
In Stock
$7.99
Servo Extension Lead: 18" Heavy-Duty
SPMSA4040 SPMA3004
Servo Extension Lead: 18" Heavy-Duty
In Stock
$7.99
Servo Extension Lead: 24" Heavy-Duty
SPMSA4040 SPMA3005
Servo Extension Lead: 24" Heavy-Duty
In Stock
$8.99
Servo Extension Lead: 36" Heavy-Duty
SPMSA4040 SPMA3006
Servo Extension Lead: 36" Heavy-Duty
In Stock
$9.99
Servo Extension Lead: 48" Heavy-Duty
SPMSA4040 SPMA3007
Servo Extension Lead: 48" Heavy-Duty
In Stock
$10.99
Servo Extension Lead: 3" Standard
SPMSA4040 SPMA3050
Servo Extension Lead: 3" Standard
Next Shipment January 2025
$5.99
Servo Extension Lead: 6" Standard
SPMSA4040 SPMA3051
Servo Extension Lead: 6" Standard
Next Shipment January 2025
$5.99
Servo Extension Lead: 9" Standard
SPMSA4040 SPMA3052
Servo Extension Lead: 9" Standard
In Stock
$9.99
Servo Extension Lead: 12" Standard
SPMSA4040 SPMA3053
Servo Extension Lead: 12" Standard
Next Shipment January 2025
$7.99
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Servo Connector Clips (25)
SPMSA4040 SPMA3054
Servo Connector Clips (25)
In Stock
$3.99
Socket Head Servo Mounting Screws (20)
SPMSA4040 SPMA4042
Socket Head Servo Mounting Screws (20)
Next Shipment January 2025
$3.99
Socket Head Metal Gear Servo Screws & Washers (6)
SPMSA4040 SPMA4043
Socket Head Metal Gear Servo Screws & Washers (6)
Next Shipment January 2025
$3.99
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XBC100 Smart LiPo Battery Checker & Servo Driver
SPMSA4040 SPMXBC100
XBC100 Smart LiPo Battery Checker & Servo Driver
In Stock
$49.99
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Product Details

Key Features
  • 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
icon-box
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

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

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.

Product Specifications

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