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Technical Specifications
Last Updated: 2026-10-08| Identity | |
| Brand |  |
| Product Number | KDS-N590 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
34.72 oz-in
2.50 kg-cm
0.2 N-m
4.8V
27.77 oz-in
2.00 kg-cm
0.2 N-m
|
| Speed |
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
4.8V
0.08 sec/60°
750.0 deg/s
125.0 RPM
|
| Physical | |
| Weight | 0.88 oz25.0 gAverage |
| Dimensions |
L 1.398 in W 0.591 in H 1.126 in L 35.5 mm W 15.0 mm H 28.6 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Plastic |
| Gear Spline/Teeth | 25 T |
| Control & Signal | |
| Modulation | Digital |
| Refresh Rate | 300 Hz |
| Control System | PWM |
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
| Weight | Average Lighter than 55% of 466 Digital Mini servos |
Performance Analysis
| Shaft Power | 0.64–0.92 W |
| Power Density | 0.986 W/in³ More power-dense than 17% of 440 Digital Mini servos |
| Torque Density | 1.1108 oz-in/g |
| Torque-to-Volume Ratio | 29.85 oz-in/in³ |
| Speed-to-Weight | 0.50000 (1/sec·g) |
| Speed-Torque Trade-off | 2.22 |
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Reviews (5)
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huynh_mio
October 18, 2012Application(s): tail for tarot 450 pro
Comments: i bought 1 and it died after 3 times flight, i bought another, it good, i flight than 10 times. may be it an good servo with its price !!
Felipe
September 4, 2012Application(s): KDS 450 SV Tail Servo
Comments: It died after about 10 flights causing my heli to crash. I'm not buying this servo again, gonna try another brand.
Claudi
July 31, 2012Application(s): Tail rotor for 450 class helicopter
Comments: Funciona be pero nomes un parell d'hores de vol,despres es para,el vaig obrir i sorpresa ,les escombretes gastades.
No es un bon servo.Juan Manuel
October 12, 2011Application(s): Tail rotor for KDS450SV with KDS800 gyro
Comments: I have bought a new KDS450SV heli. At 8th flight this servo dies. Now I have to buy a new digital servo.. don't spect buy a KDS servo.
Snake eyes
September 3, 2011Application(s): Tail rotor servo for hk500 belt driven helicopter
Comments: Bought 3 of this for use of my helis. 2 died after less than 3 flights. Used 6v setting on my hobbywing platinum esc and kds 800 gyro. Other servo installed on my hk450 with hobbywing pentium esc and jitters back and forth. Opened this esc and put some insulation as it seems to be affected by static electricity produced by the belt. Not really the best servo for belt driven helis i think