Power HD HD-1440A - Micro Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-11
Modulation:	Analog
Torque:	4.8V: 11.10 oz-in (0.80 kg-cm) 6.0V: 8.30 oz-in (0.60 kg-cm)
Speed:	4.8V: 0.12 sec/60° 6.0V: 0.10 sec/60°
Weight:	0.16 oz (4.4 g)
Dimensions:	Length:0.79 in (20.1 mm) Width:0.77 in (19.6 mm) Height:0.31 in (7.9 mm)
Motor Type:	(add)
Gear Type:	Plastic
Rotation/Support:	Bushing
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Power HD HD-1440A is a high-quality analog pico-class servo that has become a staple for builders of lightweight and micro-sized aircraft. Weighing in at just 4.4 grams, it is a versatile and reliable performer, perfectly suited for a wide range of applications, from indoor foamies and park flyers to small gliders. The HD-1440A is particularly praised for its exceptionally smooth gear train and precise, consistent centering—a hallmark of Power HD's commitment to quality, even in their smallest servos. This makes it a favorite among builders who value a refined feel and predictable performance from their components. The essence of the HD-1440A is its role as a high-quality, general-purpose pico servo; it offers a fantastic balance of low weight, good power, and reliable operation.
For robotics projects that require small, lightweight, and reliable actuators, the HD-1440A is an excellent choice. Its quality construction makes it a good option for small robotic manipulators or sensor platforms that need to be both lightweight and reasonably precise.