The HD-1581HB is the strongest micro servo we carry, and digital electronics coupled with a ball bearing give this servo a distinct edge over analog micro servos. The lead is terminated with a standard “JR”-style connector, which is Futaba-compatible. The pictures below show an example of the hardware that might be included with this servo (hardware might vary).

You can find more information about this servo under the specifications tab and in its datasheet (453k pdf).

Note that, as with most hobby servos, stalling or back-driving this servo can strip its gears.



Size: 22.8 x 12 x 25.4 mm
Weight: 12 g

General specifications

Digital?: Y
Free-run current @ 6V: 300 mA
Stall current @ 6V: 1200 mA
Speed @ 6V: 0.16 sec/60°
Stall torque @ 6V: 2.6 kg·cm
Speed @ 4.8V: 0.21 sec/60°
Stall torque @ 4.8V: 2.2 kg·cm
Lead length: 10 in
Hardware included?: Y


File downloads

Datasheet for the Power HD micro digital servo HD-1581HB (453k pdf)

Note: The servo case shape has changed since this datasheet was made. The dimension diagram in the datasheet applies to the old case style; it does not accurately dimension the new case style. The product picture shows the new case.


SKU PL-1042
Brand Pololu

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