Kpower P0043 4.3 g PWM Coreless Micro Servo for RC Aircraft and Micro Robots

Kpower

$35.00 USD

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Version P0043

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Overview

The Kpower P0043 is a 4.3 g analog coreless micro servo for RC aircraft, hand-launch gliders, small drones and miniature mechanisms. Its 19.8 × 8.2 × 24.3 mm body fits space-constrained projects, while PWM control supports position-command integration. Operating from 4.8–8.4 V, it delivers 0.8 kg·cm stall torque at 4.8 V or 0.9 kg·cm at 6.0 V, with voltage-dependent no-load speed.

Features

Compact construction: translucent plastic housing with mounting tabs and holes for installation in small assemblies.
Analog coreless drive: a coreless motor with potentiometer position feedback.
POM plastic gearing: designed for smooth, stable movement, with dual ball bearings.
PWM control: 900–2100 µs pulse range and a 6 µs dead band.
Output connection: 20-tooth, 3.6 mm diameter horn spline and a 190 mm wire.
Travel: 120° ±5°; travel-angle customization is indicated.

Specifications

Voltage-Dependent Performance

Parameter	At 4.8 V	At 6.0 V
Stall torque	0.8 kg·cm	0.9 kg·cm
No-load speed	0.08 s/60°	0.07 s/60°

Mechanical and Electrical Specifications

Parameter	Value
Brand / model	Kpower P0043; housing marking WK-P0043
Servo type	Analog coreless micro servo
Rated torque	0.2 kg
Weight	4.3 g
Dimensions	19.8 × 8.2 × 24.3 mm (0.78 × 0.32 × 0.96 in)
Wire length	190 mm
Travel angle range	120° ±5°; customizable
Operating voltage	4.8–8.4 V
Horn gear spline	20T, Ø3.6 mm
Gear material	POM plastic
Motor	Coreless motor
Control protocol	PWM
No-load current	500 mA
Stall current	500 mA
Position sensor	Potentiometer
Case material	Plastic
Ball bearings	2BB; dual ball bearings
Working frequency	50–333 Hz
Dead band	6 µs
Pulse length range	900–2100 µs
Operating temperature	−10 to 50 °C
IP rating	IP42

Applications

RC airplane and hand-launch glider control linkages: the 4.3 g weight helps limit added mass in small airframes, while the compact body fits restricted installation spaces.
Small-drone and UAV mechanisms: use the miniature PWM actuator for position-controlled linkages where its dimensions, travel and voltage-conditioned torque suit the mechanism.
RC car models and STEAM car kits: build small steering or motion linkages using the horn spline and PWM position control.
Micro robots and multi-legged bionic robots: actuate miniature joints and linkages with a compact servo offering 120° ±5° travel.
Micro-toy DIY projects: add controlled movement to small mechanisms using the lightweight housing and mounting tabs.
Smart door-lock and wearable-device prototypes: integrate small moving mechanisms where the compact form and potentiometer-based position feedback are useful.