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Technical Specifications
Last Updated: 2026-09-14| Identity | |
| Brand |  |
| Product Number | HD-1501MGHV |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
7.2V
284.00 oz-in
20.45 kg-cm
2.0 N-m
6.0V
236.10 oz-in
17.00 kg-cm
1.7 N-m
4.8V
215.30 oz-in
15.50 kg-cm
1.5 N-m
Top 10%
|
| Speed |
6.0V
0.14 sec/60°
428.6 deg/s
71.4 RPM
4.8V
0.16 sec/60°
375.0 deg/s
62.5 RPM
Above Average
|
| Stall Current | 2.3–2.5 A2300–2500 mABelow Average |
| Physical | |
| Weight | 2.12 oz60.0 gBelow Average |
| Dimensions |
L 1.65 in W 0.81 in H 1.56 in L 41.9 mm W 20.6 mm H 39.6 mm |
| Drivetrain | |
| Motor Type | DC |
| Gears | Metal |
| Gear Spline/Teeth | 25 T estimate |
| Shaft Size | 5.8 mm |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Analog |
| Direction | Clockwise |
| Rotational Range | 90° |
| Mechanical Limit | 180° |
| Pulse Cycle | 20 ms |
| Pulse Width | 500-2100 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 50 Hz |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -10–60 °C14–140 °F |
| Idle Current | 0.005 A5 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | Hong Kong |
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
| Torque | Top 10% Stronger than 99% of 157 Analog Standard servos at 4.8V |
| Speed | Above Average Faster than 77% of 156 Analog Standard servos at 4.8V |
| Weight | Below Average Lighter than 12% of 430 Analog Standard servos |
| Stall Current | Below Average Lower draw than 13% of 46 Analog Standard servos |
Performance Analysis
| Shaft Power | 2.49–3.12 W |
| Power Density | 1.496 W/in³ More power-dense than 94% of 421 Analog Standard servos |
| Torque Density | 3.5883 oz-in/g 4th-highest torque density of 157 Analog Standard servos |
| Torque-to-Volume Ratio | 103.26 oz-in/in³ 5th-highest torque-to-volume ratio of 157 Analog Standard servos |
| Speed-to-Weight | 0.10417 (1/sec·g) Faster than 37% of 156 Analog Standard servos |
| Speed-Torque Trade-off | 34.45 Better balanced than 92% of 156 Analog Standard servos |
| Current-per-Torque Ratio | 0.0116 A/oz-in 5th-highest current-per-torque ratio of 43 Analog Standard servos |
| Torque Gain per Volt | 8.05%/V More voltage-responsive (torque) than 18% of 121 Analog Standard servos |
| Speed Gain per Volt | 11.91%/V More voltage-responsive (speed) than 45% of 122 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 53% of 186 Analog Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0013 1st-highest dead-band-to-pulse-width ratio of 37 Analog Standard servos |
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Reviews (13)
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Red
January 4, 2021Application(s): Gas and glow planes up to 90" wingspan with 55cc motors. Ailerons, elevators, rudder, flaps, choke and throttle.
Comments: I've used these servos for the last 5 years and never had one fail. They've been in many crashes and they still work. Not the fastest. But for sport flying they are fine and high torque is more than you'll ever need.
Arun Dj
November 20, 2018Application(s): Robot Arm Gripper: Can anyone tell me the required current for this servo motor. I am using 1501mg digital servo. For long time I was not able to identify it. In the spec: it was given as 6 - 7.4V no details about current. Please help. Thank you
Comments: Help me
Markshall
January 12, 2014Application(s): Robot arm
Comments: I bought about 10 piece of this servo. Good torque, speed, silence, but under high load (~15kg*cm) in one position during few minutes servo makes hot and damaged. After that, cooled servo electrically works, but motor needs a lot o power (and makes hot again) to change position in idle state! I think this is damage of gear, because axes of sprocket are placed in plastic, only main shaft has bearing. I damaged 3 servos in this way.
Reiser
September 29, 2013Application(s): Torque Alto para su tamaño
Comments: Me gusto este tipo de servo pues es uno de los que más torque manejan en su tamaño, he comprado cinco para un brazo robotico que estoy haciendo, solo me queda una iquietud: ¿Será que al alimentarlo con 7.2 V el servo si dará los 20.45Kg-cm sin llegar a sufrir ningún daño? Si alguien lo ha utilizado así por favor hagamelo saber.
Mooi
February 20, 2013Application(s): I have not used the servo yet, but intend using it in a sub to operate the bellows for boyancy change.
Comments: The torque specified by all servos is kg/cm. ie, in this case, 17kg at 1cm, 8.5kg at 2cm, 4.25kg at 4cm.
You cannot expect the 17kg at the end of the longest servo arm provided.Thorpy
February 10, 2013Application(s): Steering seevo
Comments: I've recently put this in my HPI Savage X 4.6 and so far it's brilliant! Not the fastest servo in the world but the torque is good and for the price it's brilliant! Let see how long it lasts!
zagi450t
July 22, 2012Application(s): elevator 50cc extra
Comments: Servo seems a lot slower than spec but has plenty of pull for the price.
Olle P
February 2, 2012Application(s): Steering servo, Losi Comp Crawler.
Comments: Quality seems okay.
Potential opening for water where the cables come out of the case, otherwise seemingly water tight.Unfortunately it isn't as strong as the manufacturer says...
Tested the strength at 6.0V by lifting weights at a 22mm arm.
* 9 kg-cm had the servo working fine.
* 11 kg-cm pulled the arm ~3 degrees off, but was able to hold still. Unable to lift the arm.
* 13 kg-cm pulled the arm ~5 degrees off, but was able to hold still. Unable to lift the arm.number1grandad
October 6, 2011Application(s): hpi baja 5b
Comments: recomended by motor sport uk for a replacement for stock throttle servo it is reverse functions the fail safe goes into full throttle it is well built but the range is too exsevive and bent the throttle arm tryed binding it again doesnt work
Hughsey82
July 11, 2011Application(s): Traxxas Summit
Comments: These are pretty strong for the price. Havent failed after 6 months...
dpb
March 2, 2011Application(s): Throttle Control for Quarter Scale Pulling Tractor
Comments: perfect, plenty of power, never failed, inexpensive
JCUBS
February 21, 2011Application(s): Used for my E-MAXX 3906
Comments: Seems to be working much better then the stock 2055 traxxas servo.
Durability.. time will tell - maybe something eles will give..a bit noisy with jitter.
rccrawler
May 12, 2010Application(s): 1/10 scale crawler steering servo
Comments: Being my first crawler build, I am pleased with its performance. It has really good torque in my opinion; it will steer precisely while supporting the full weight on the front end no problem and sounds good doing it. Price to performance gives it 5. Longevity still to be determined. Recommended for 18 bucks.