• Black Kpower P0300 servo with a four-arm horn attached, shown at an elevated angle with mounting tabs visible.
  • Kpower P0300 servo shown upright with an exposed white output shaft, readable model label, and slotted mounting tabs.
  • Black servo in horizontal side view with a white output shaft, mounting tabs at both ends, and wires emerging at the right.
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Kpower P0300 Digital Servo Motor, 3.6 kg·cm at 6 V, for RC Models and Robot Joints

Kpower P0300 Digital Servo Motor, 3.6 kg·cm at 6 V, for RC Models and Robot Joints

Kpower

$35.00 USD
$35.00 USD
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Overview

The Kpower P0300 is a plastic-gear digital servo motor for RC models, robot joints and educational mechanisms. Weighing 30 g, it combines a brushed DC motor with potentiometer position sensing and a plastic housing. Torque is specified as 3.2 kg·cm at 4.8 V and 3.6 kg·cm at 6.0 V, helping buyers assess linkage requirements at their intended supply voltage.

Features

  • Digital servo control with a brushed DC motor and potentiometer position sensor.
  • Low-noise plastic gearing and lightweight construction.
  • Plastic housing, two ball bearings and mounting ears.
  • Cross-shaped servo horn; 25T output spline with a 5.5 mm diameter.
  • 120° travel angle, with customizable travel.

Specifications

Parameter P0300 specification Condition or qualification
Servo type Digital servo Plastic-gear construction
Stall torque 3.6 kg·cm No voltage condition specified for the stall-torque entry
Torque at 4.8 V 3.2 kg·cm Torque classification not separately specified
Torque at 6.0 V 3.6 kg·cm Torque classification not separately specified
Rated torque 0.9 kg —
No-load speed 0.13 s/60° Voltage condition unspecified
Weight 30 g —
Travel angle range 120° Customizable
Operating voltage 4.8–8.4 V —
Horn gear spline 25T, Ø5.5 mm —
Gear material Plastic —
Motor Brushed DC —
Listed control protocols PWM / TTL / RS-485 Interface configuration and simultaneous support unspecified
No-load current 4000 mA Voltage condition unspecified
Position sensor Potentiometer —
Case material Plastic —
Ball bearings 2BB Two ball bearings
Working frequency 50–333 Hz —
Operating temperature −10 to 50 °C —
IP rating IP42 —

Applications

  • RC models and UAVs, including fixed-wing drones: actuate model linkages with a 30 g servo, selecting the supply voltage using the corresponding torque values.
  • Robot joints and micro robots: drive limited-angle joints using potentiometer position sensing and 120° travel.
  • Educational robot kits, STEAM projects and robot toys: demonstrate controlled angular movement with a digital servo and accessible horn linkage.
  • Industrial equipment: operate small positioning linkages using the mounting ears and splined output for mechanical integration.
  • Smart-home mechanisms and luggage electronic locks: move compact latch or positioning linkages through a limited angular range.
  • Smart cameras: position an angular adjustment mechanism using servo position control.
  • Grass-cutting robots: actuate auxiliary positioning linkages within the specified torque, travel and operating limits.
  • Intelligent medical-device mechanisms: provide limited-angle mechanical positioning using potentiometer feedback.

Documents

Visual Details

Features and Design

P0300 digital servo with cross-shaped horn beside a generic servo customization overview
The Kpower P0300 is labelled as a digital servo. The P0300 has a cross-shaped servo horn and mounting ears.
P Series feature graphic with P0025 illustrations, plastic gears and a PWM connector
The P Series is described as using standard PWM servo control. The P Series is described as using low-noise plastic gears.
Custom servo development graphic covering appearance, torque, protocols and wiring
Custom servo development graphic covering appearance, torque, protocols, wiring and reliability design

Application Examples

P0300 servo with robot joint, RC model, industrial equipment and educational kit examples
The Kpower P0300 is labelled as a digital servo. The P0300 lists robot joints as an application.
Kpower drive-and-control application grid for robotics, automation and other industries
Kpower application grid covering robotics, automation, RC models, drones, agriculture and other industries

Specifications and Performance

P0300 and P0600 comparison table with torque, speed, protocols, weight and dimension labels
The P0300 torque is listed as 3.6 kg·cm; the table does not specify a voltage condition. The P0300 speed is listed as 0.13 s/60°; the table does not specify a voltage condition.
P0300 plastic-gear mechanism with voltage-dependent torque specifications and application list
The P0300 torque is 3.2 kg·cm at 4.8 V. The P0300 torque is 3.6 kg·cm at 6.0 V.
Generic servo selection panel covering angles, speed, voltage and dead band
Generic servo selection panel with angle, speed, voltage and dead-band values beside assorted motors

Additional Product Details

Five servo horn shapes labeled Flat, Cross, Round, Star and Single
Five servo horn shapes labeled Flat, Cross, Round, Star and Single
ODM service workflow from needs assessment through design, sampling and mass production
Product-oriented ODM service workflow from needs assessment through design, sampling and mass production

Setup and Use

Generic servo pulse-width reference mapping 0.5–2.5 ms pulses to −90° through 90°
Servo pulse-width reference mapping 0.5–2.5 ms pulses to output angles from −90° to 90°
CLS88WP speed and current versus torque chart at 7.4 V with operating-duration guidance
CLS88WP speed and current versus torque chart at 7.4 V with operating-duration guidance
Generic exploded servo assembly with labeled components and a selection checklist
Exploded servo assembly with labeled gears, housings, seals, motor and electronics beside a selection checklist

Interfaces and Connections

Generic three-wire servo diagram with brown ground, red supply and orange signal
Three-wire servo connector diagram: brown ground, red Vcc and orange signal

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