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Futaba S148
Standard Discontinued

Futaba S148

Compatible Hardware

*Spec is estimated from brand data.

Technical Specifications

Last Updated: 2026-09-14
Identity
Brand Futaba
Product Number FUTM0710
Category Hobby
Discontinued Yes
Performance
Torque
6.0V 41.60 oz-in
4.8V 33.30 oz-in Bottom 10%
Speed
6.0V 0.22 sec/60°
4.8V 0.28 sec/60° Bottom 10%
Physical
Weight 1.60 ozAverage
Dimensions L 1.60 in
W 0.80 in
H 1.41 in
Case Material Plastic
Drivetrain
Motor Type 3-pole
Gears Nylon | Plastic
Gear Spline/Teeth 25 T estimate
Rotation Mode Positional
Rotation/Support Bushing
Control & Signal
Modulation Analog
Direction Clockwise
Rotational Range 180°
Pulse Cycle 20 ms
Pulse Width 550-2330 µs
Neutral Position 1500 µs
Angle Sensor Potentiometer
Control System PWM
Electrical & Environment
Operating Voltage 4.8–6 V
Idle Current 0.008 A
Connectivity
Connector Futaba J
Wire Length 270 mm

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Class Comparison

TorqueBottom 10%
Stronger than 3% of the 157 Analog Standard servos at 4.8V
SpeedBottom 10%
Faster than 3% of the 156 Analog Standard servos at 4.8V
WeightAverage
Lighter than 60% of the 430 Analog Standard servos

Performance Analysis

Shaft Power 0.22–0.35 W
Torque Density0.7341 oz-in/g
Stronger than 1% of the 157 Analog Standard servos in the database
Torque-to-Volume Ratio18.45 oz-in/in³
Denser torque than 2% of the 157 Analog Standard servos in the database
Power Density0.194 W/in³
More power-dense than 2% of the 421 Analog Standard servos in the database
Speed-to-Weight0.07874 (1/sec·g)
Faster than 7% of the 156 Analog Standard servos in the database
Speed-Torque Trade-off9.32
Better balanced than 30% of the 156 Analog Standard servos in the database
Torque Gain per Volt20.77%/V
More voltage-responsive (torque) than 78% of the 121 Analog Standard servos in the database
Speed Gain per Volt22.71%/V
More voltage-responsive (speed) than 90% of the 122 Analog Standard servos in the database
Voltage Range Width1.2 V
Wider voltage range than 75% of the 186 Analog Standard servos in the database

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Reviews (8)

  • MINI

    February 9, 2026

    Application(s):

    Comments: nice

  • Marky

    October 25, 2023

    Application(s): Just about to replace one of these in my vintage RC car. A Mardave meteor I built with my uncle in about 1989-1990. Servo still works but it's got a little sloppy

    Comments: It was a great servo in its day (the early 90s), now it's just an old servo that still works well enough to steer my car round a track after 30 yrs. I hope futabas new stuff lasts this long.

  • Marky

    October 25, 2023

    Application(s): Just about to replace one of these in my vintage RC car. A Mardave meteor I built with my uncle in about 1989-1990. Servo still works but it's got a little sloppy

    Comments: It was a great servo in its day (the early 90s), now it's just an old servo that still works well enough to steer my car round a track after 30 yrs. I hope futabas new stuff lasts this long.

  • RULOGALD

    March 8, 2019

    Application(s): SPORT RC PLANES WITH .46-.60 GLOW ENGINE

    Comments: I HAVE USED THEM FOR MORE THAN TEN YEARS .RELIABLE LOW COST SERVO

  • Boomer

    April 7, 2017

    Application(s): Rudder servo on Yamaha Round the World RC Yacht 1 meter boat

    Comments: This servo has performed perfectly for over ten years. Using a Futaba S3801 for the sail servo. Same report- could not ask for better performance

  • Biomecanoid

    February 19, 2017

    Application(s): Steering Servo

    Comments: I had this servo on my Kyosho Raider PRO, the car died due to lack of spare parts but the 2 Futaba servos on the steering and mechanical speed control live on. A bit short of 30 years old and still fully functional

  • Spin2

    May 20, 2016

    Application(s): Airplane

    Comments: Older servo, but continues to perform -- no problems

  • lugerman

    January 13, 2013

    Application(s): all airplane, heli throttle

    Comments: super servo of its time still using some. I thing this was one of the last hand assembled servos Futaba made

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