| CHA DS20 Servo Specifications | ||
|---|---|---|
| Body dimensions | 40.0 mm wide x 20.0 mm thick x 38.0 mm high | 1.57" wide x 0.79" thick x 1.50" high |
| Max dimensions | 54.5 mm wide x 20.0 mm thick x 42.0 mm high | 2.15" wide x 0.79" thick x 1.65" high |
| Stall torque (6V) | 20 Kg.cm | 278 oz.in |
| Stall torque (7.4V) | 24 Kg.cm | 333 oz.in |
| Stall torque (8.4V) | 26 Kg.cm | 361 oz.in |
| Weight | 64 g | 2.26 oz |
| Lead length | 21 cm | 8.3 in |
| Operating speed (6V) | 0.11 sec/60° | |
| Operating speed (7.4V) | 0.09 sec/60° | |
| Operating speed (8.4V) | 0.08 sec/60° | |
| Operating voltage | 4V to 9V | |
| Operating temperature | °C | |
| Bearings | 2 ball races | |
| Gear material | Hardened Steel | |
| Case material | High Quality Technopolymer and Aluminium | |
| Motor type | Coreless DC | |
| Working frequency | 333 Hz | |
| Dead band/resolution | µs | |
| Pulse width for ± 60º | 900-210 µs | |
| Digital | Yes | |
| Programmable | Yes | |
| Position feedback | Potentiometer | |
| Supplied accessories | 5 plastic output arms, 4 mounting screws, 2 arm retaining screws | |
| Optional accessories | ||
Review by: robin norman
chase ds20 servosgreat servos for the price and the power they put out super quiet can't hear any noise from the gear train I've got them in a 67 inch plane and they work flawlessly on 7.4 would definitely recommend these servos for the price and performance can't beat them
Review by: Nick
Really impressedI have always been a hitec man, most of if not all of my 1/3 scale models powered and gliders have hitecs in. But as Neil is so close to me and I needed some standard size digital servos in a hurry I bought 3.
I am really impressed with the smoothness, no central slop, silence and power of these servos, I am converted, they are good enough for all movements. I will be buying more when the time comes!
Thanks Neil.