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JR DS821 Digital Sport Servo

JR DS821 Digital Sport Servo


(Out of stock)

JR DS821 Digital Sport Servo

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Quick Overview

jr logo    DS821 Digital Sport Servo


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The DS821 servo is a powerful, accurate sport digital servo recommended for RC airplane applications up to 1.20-size. For helicopters, the DS821 operates best with 30-size glow models, and up to 50-size electric. Loads and vibration in larger models may cause premature failure of the servo resulting in damage or injury to property and persons.


  • Lower price point, but higher performance value
  • New, longer-lasting plastic gear material
  • Same size as standard servo
  • Ball bearing-supported output shaft


  • Size Category: Standard
  • Type: Digital
  • Torque: 72 oz-in @ 4.8v, 88 oz-in @6v
  • Speed: .19 sec/60° @ 4.8v, .15 sec/60° @ 6v
  • Length: 1.50" (38.1)
  • Width: 0.74" (18.7)
  • Height: 1.47" (37.3)
  • Weight: 1.5oz (42.5g)
  • Bushing Or Bearing: Bearing
  • Bearing: Single
  • Motor Type: 3-pole ferrite
  • Gear Type: Nylon
  • Gear Material: Composite
  • Application: Standard size-digital servo upgrade for sport pilots

Additional Information

Servo Type Digital
Gear Type Plastic
Stall Torque 72 oz-in @ 4.8V / 88oz-in @ 6V
Speed .19 sec/60-deg @ 4.8V . / .15 sec/60-deg @ 6V
Voltage Rating 4.8-6.0V
Dimensions Width .74" (18.7mm) Length .1.5" (38.1mm) Height 1.47" (37.3mm)
Weight 1.5oz. (42.5 grams)
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