Power HD HD-1900A - Mini High Speed 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: 20.80 oz-in (1.50 kg-cm) 6.0V: 16.70 oz-in (1.20 kg-cm)
Speed:	4.8V: 0.11 sec/60° 6.0V: 0.08 sec/60°
Weight:	0.32 oz (9.0 g)
Dimensions:	Length:0.91 in (23.1 mm) Width:0.48 in (12.2 mm) Height:1.14 in (29.0 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 Power HD HD-1900A is a versatile analog sub-micro servo, positioned in the popular 8-9 gram class and designed to be an extremely cost-effective workhorse. This servo is aimed at the budget-conscious hobbyist who needs a reliable, general-purpose actuator for a huge range of park flyers, small electric gliders, and other sport models. The HD-1900A provides a solid, all-around performance profile, with a good balance of speed and torque that is well-suited for the vast majority of control tasks, from ailerons to elevators and rudders. It is a fundamental component for making the hobby of electric flight as affordable as possible. The core identity of this servo is its role as the ultimate budget-friendly, do-it-all sub-micro servo.
For the robotics community, the HD-1900A is an invaluable component, particularly for projects that require a very large number of servos. It is one of the most affordable ways to build a full-sized hexapod or quadruped walking robot, where the cost of premium servos would be prohibitive. It is also an excellent choice for STEM classrooms and educational workshops, providing a low-cost, reliable actuator that allows students to build ambitious and complex robots.

Rex

December 17, 2024

Rating:

Application(s):

Comments: (From hobbyking.com) Very reliable for me. I have a set in a CTH Scythe I fly almost every day for 2 yrs now, 2-5 batteries a day 7min each and these servos are still working through 100's of crashes! I really can't believe they are still going. I have other planes with them and they are going great also. Great servo at a great price
Gramp

September 23, 2017

Rating:

Application(s): Swarm

Comments: This company has the worst datasheets in the world