Product Description
This series covers both 180° angular displacement and 360° continuous rotation types, with torque ranging from 1.3 kg·cm to 2.2 kg·cm. It uses PWM control signals and is compatible with standard receivers. Suitable for robot joints, car drives, and other applications; small size, lightweight, and stable performance.

Product parameters
Basic Info | Product Name | 6V 1.5kg.cm Analog Servo | 4.8V 1.3kg.cm Analog Continuous Rotation Servo |
Model No. | PFS90 | PFS90R | |
Operating Env. | Storage Temperature | -30℃~80℃ | |
Operating Temperature | -15℃~70℃ | ||
Test Env. | Temperature | 25℃±5℃ | |
Humidity | 65%±10% | ||
Mechanical Specs | Size | 22.5mm×12.1mm×22.4mm | 22.5mm×12.1mm×27.7mm |
Weight | 9g±0.2g | 9g±0.2g | |
Gear type | Plastic Gear | Plastic Gear (Nylon & POM) | |
Limit angle | 180° | NO limit | |
Bearing | NO Ball bearings | ||
Horn gear spline | 21T(4.86) | 21T(4.86) | |
Horn type | Plastic (Material: POM) | ||
Case | ABS Material | Nylon & Fiberglass | |
Connector wire | 250mm±5mm | 250mm±5mm | |
Motor | Metal brush motor | ||
Splash water resistance | NO | ||
Electrical Specs | Idle current | 4.8V: 5mA;6V: 6mA | 4.8V: 5mA;6V: 6mA |
No load speed | 4.8V: 0.12 sec / 60°;6V: 0.10 sec / 60° | 4.8V: 80RPM;6V: 100RPM | |
Running current | 4.8V: 100mA;6V: 120mA | 4.8V: 110mA;6V: 130mA | |
Peak stall torque | 4.8V: 1.3kg.cm;6V: 1.5kg.cm | 4.8V: 1.3kg.cm;6V: 1.5kg.cm | |
Stall current | 4.8V: 700mA;6V: 800mA | 4.8V: 700mA;6V: 800mA | |
Control Specs | Command signal | Pulse width modification | |
Amplifier type | Analog comparator | ||
Pulse width range | 900~2100μsec | ||
Neutral position | 1500μsec | ||
Running degree | 120° (900~2100μsec);180° (500~2500μsec) | 360 Degree Continuous rotation | |
Dead band width | 8μsec | 90μsec | |
Rotating direction | 1500~900μsec: CW;1500~2100μsec: CCW | 1500~700μsec: CW;1500~2300μsec: CCW | |
PFS90

PFS90R

Basic Info | Product Name | 6V 1.5kg.cm Digital Servo | 6V 1.5kg.cm PWM 360°Continuous rotation Digital Servo |
Model No. | PFT90B | PFT90R | |
Operating Env. | Storage Temperature | -30℃~80℃ | |
Operating Temperature | -20℃~70℃ | -10℃~70℃ | |
Test Env. | Temperature | 25℃±5℃ | |
Humidity | 65%±10% | ||
Mechanical Specs | Size | 22.5mm×12.1mm×22.4mm | 22.9mm×12.1mm×26.5mm |
Weight | 10.5g | 9g | |
Gear type | Plastic Gear | ||
Limit angle | 180° | 360° | |
Bearing | NO Ball bearings | NO Ball bearings | |
Horn gear spline | 21T(4.86) | 20T | |
Horn type | Plastic, POM | Plastic, POM | |
Case | PC (Polycarbonate) | ABS (Acrylonitrile Butadiene Styrene) | |
Connector wire | 250mm±5mm (JR, Brown/Red/Orange) | 250mm±5mm JR | |
Motor | Metal brush motor | ||
Splash water resistance | NO | ||
Electrical Specs | Idle current | 3V:4mA;4.8V:5mA;6V:6mA | 4.8V:5mA;6V:6mA |
No load speed | 3V:0.16sec/60°;4.8V:0.12sec/60°;6V:0.09sec/60° | 4.8V:110RPM;6V:130RPM | |
Running current | 3V:80mA;4.8V:100mA;6V:120mA | 4.8V:100mA;6V:120mA | |
Peak stall torque | 3V:1.0kg.cm;4.8V:1.3kg.cm;6V:1.5kg.cm | 4.8V:1.3kg.cm;6V:1.5kg.cm | |
Stall current | 3V:450mA;4.8V:700mA;6V:800mA | 4.8V:800mA;6V:900mA | |
Control Specs | Command signal | Pulse width modification | |
Amplifier type | Digital comparator | ||
Pulse width range | 500~2500μsec | 900~2100μsec | |
Neutral position | 1500μsec | 1500μsec | |
Running degree | 180° (500~2500μsec) | 360° | |
Dead band width | 4μsec | ±20μsec | |
Rotating direction | CW (1500~900μsec), CCW (1500~2100μsec) | CW (1500~1000μsec), CCW (1500~2000μsec) | |
PFT90B

PFT90R

Basic Info | Product Name | 6V 2.2kg.cm 180° Digital Servo | 6V 2.2kg.cm 360° Continuous Rotation Digital Servo |
Model No. | PFS90MG | PFS90MR | |
Operating Env. | Storage Temperature | -30℃~80℃ | |
Operating Temperature | -10℃~60℃ | ||
Test Env. | Temperature | 25℃±5℃ | |
Humidity | 65%±10% | ||
Mechanical Specs | Size | 22.5×12.1×26.7mm | |
The Weight | 12.7±1g | ||
Gear material | Copper | POM | |
Limit Angle | 180° | No limit | |
Bearing type | No | ||
Horn Type | 20T/4.7mm | ||
Case material | PC plastic | ||
Motor | Core Motor | ||
Gear Ratio | 1/263 | ||
Back Lash | ≤2.0° | ||
The rocker phantom | 0° | ||
The rocker screw | M2.5X4 | ||
Electrical Specs | Idle Current | 3.3V:5mA | |
No Load Speed | 3.3V: 0.125sec/60°(80RPM) | ||
Running Current | 3.3V: 120mA | ||
Stall Torque | 3.3V: 1.2kg.cm(16.69oz.in) | ||
Stall Current | 3.3V: 400mA | ||
Rated Torque | 3.3V:0.4kg.cm | ||
Rated Current | 3.3V:200mA | ||
Kt | 3.5kg.cm/A | ||
Control Specs | Command Signal | Pulse width modification | |
Control System Type | Digital Comparator | Digital Comparator | |
Pulse Width Range | 500~2500μsec | 1400~1600μsec | |
Neutral Position | 1500μsec | ||
Operating Travel | 180° (at 500~2500μsec) | 360° Continuous rotation (at 1400~1600μsec) | |
Dead Band Width | ≤8μsec | ≤90μsec | |
Rotating Direction | Counterclockwise (at 1500~2000μsec) | Counterclockwise (at 1500~1600μsec) | |
PFS90MG/PFS90MR

Product Display
Dual-mode precise adaptation:
180° fixed-angle positioning / 360° continuous rotation, covering different power needs.
Wide-range high-torque output:
4.8V/6V compatibility, 1.3-2.2kg.cm torque, stable and abundant power.
Miniature lightweight design:
Only 9-12.7g weight + 22.5mm size, saving installation space.
Dual-control universal compatibility:
Universal digital/analog signal, no additional adaptation required, plug and play.
Durable structure upgrade:
Plastic/metal gears paired with long-life components, wear-resistant and durable, long service life.
Low-power precise control:
Static current starting from 5mA, precise pulse width control, low energy consumption and accurate positioning.
Interface
Servo Cable Definitions
Orange: Signal Wire
Red: VCC 4.8-6V
Brown: GND
Compatible with JR/Futaba
Quality Control
This product undergoes rigorous quality control before leaving the factory. From the meticulous selection of core components to the high-precision manufacturing and assembly of the motor and gear train, every detail is ensured to be tight and reliable. Comprehensive performance testing precisely verifies torque, angular accuracy, and response speed, and verifies stability in harsh environments such as high and low temperatures, humidity, and vibration. All products undergo long-term endurance cycling and numerous electrical tests, including voltage, current, and electromagnetic compatibility tests, ensuring that each servo delivers superior performance and durability, providing you with a reliable and secure motion control experience.
Application Cases
The PF90 series 180° positioning servos are suitable for precise positioning of robot joints, model aircraft control surfaces, and robotic arms; the 360° continuous rotation servos are suitable for intelligent vehicle drives, conveyor belts, and turntable rotation mechanisms. As compact power components, this series is widely compatible with small robots, DIY maker projects, and model toys, balancing lightweight applications with stable performance.
Robot joint angle control
Smart car drive wheels
DIY maker project










