# Power HD High-Torque, High-Voltage Digital Servo 1218TH

**Type:** Product page · **SKU:** POLOLU-2147 · **Brand:** [Pololu](https://core-electronics.com.au/brands/pololu-australia)
**Page:** https://core-electronics.com.au/power-hd-high-torque-high-voltage-digital-servo-1218th.html ([markdown](https://core-electronics.com.au/power-hd-high-torque-high-voltage-digital-servo-1218th.html.md))

## Retired product

This product is retired and no longer available for purchase. Search the catalogue for an alternative.

## Description

## Overview

The HD-1218TH is one of the strongest standard-size servos Pololu carry. Digital electronics combined with a coreless motor, titanium-shielded aluminum gears, and two ball bearings give this servo a distinct edge over typical standard-size servos. Unlike typical hobby servos, the 1218TH has an operating voltage range of 6 V to 7.4 V. This servo works with standard RC servo pulses at frequencies up to 333 Hz. The 12″ (300 mm) lead is terminated with a standard “JR”-style connector, which is Futaba-compatible. The picture below shows an example of the hardware that might be included with this servo (hardware might vary).

| [![](https://core-electronics.com.au/media/remote_images/0J3906.450_WCReVB.jpg%3F893a09d5e97cc93b47e35198e26dfd7a)![](https://core-electronics.com.au/media/remote_images/zoom-d0cfc0fffa825c4654893ef42b77cee3_UjOWCl.png)](https://core-electronics.com.au/#) |
|---|

The picture below shows the all-metal, titanium-shielded aluminum gear train and ball bearings that help the servo deliver such high torque.

| [![](https://core-electronics.com.au/media/remote_images/0J3902.450_uAPKSJ.jpg%3F1aafdbd66f96ff6ea853f8b500481258)![](https://core-electronics.com.au/media/remote_images/zoom-d0cfc0fffa825c4654893ef42b77cee3_UjOWCl.png)](https://core-electronics.com.au/#) |
|---|
| Titanium-shielded aluminum gears and ball bearings of the Power HD digital servo 1218TH. |

You can find more information about this servo under the specifications tab and in its datasheet (380k pdf).

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

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/p/o/power_hd_high_torque_high_voltage_digital_servo_1218th__pololu_2147__00.jpg)