Esky 8g Digital Servo

1).Standard Voltage：DC 5V±1V 
(2).PWM Input Range:Pulse Cycle 20±1ms,Positive Pulse 1～2ms
(3).Speed：0.1S/60º
(4).Torque:≥1.0Kg/cm(VCC=5V)
(5).MAX Corner：150º
(6).Operation Temperature: -20℃～75℃
(7).Weight:7.5g
(8).Dimensions:22.8*11.5*20.8mm
(9).Color:Black
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Servo Tower Pro MG946R
Giá : 200.000 vnd

Towerpro MG946R

Higher torque version of the MG995. Good for slow trainers, retract or steering/rudder servos.

Weight 55g 
Dimension 40.7*19.7*42.9mm 
Stall torque 10.5kg/cm(4.8V) 13kg/cm(6V)
Operating speed 0.20sec/60degree(4.8v)  0.17sec/60degree(6V)
Operating voltage 4.8-7.2V 
Temperature range 0- 55deg
Dead band width 5us

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Tìm hiểu thêm về RC Servo tại
http://www.robotonline.net/vi/articles/160/tim-hieu-ve-dong-co-servo/