HOT

1.5g Ultra-Micro Digital Linear Servo

Model: 1.5G-LINEAR-PAIR (L & R)
5 (1 reviews)
  • · Weight: 1.5g ± 0.1g (including wire and connector)
  • · Operating Voltage: 3.7V – 5.0V DC (1S LiPo Battery Compatible)
  • · Configuration: Left (L) & Right (R) Mirror Pairs
  • · Motor Type: High-Speed Micro Coreless Motor
  • · Transmission Type: Precision Metal Lead Screw & Spur Reduction
  • · Stall Torque: 0.12 – 0.18 kg.cm @ 4.2V
  • · Operating Speed: 0.08 sec / 8mm travel @ 4.2V
  • · Maximum Stroke / Travel: 8.0 mm linear travel
  • · Connector Type: JST-SH 1.25mm 3-Pin Pitch (JR / Futaba Signal Compatible)
  • · Control Signal: PWM (1000 – 2000 µs) Standard Receiver Signal

Product Overview

RC & Digital Servos

Ultra-Lightweight 1.5g Micro Digital Linear Servo (L & R Pair)

The 1.5g Ultra-Micro Digital Linear Servo Pair is specifically designed for weight-critical RC models, ultra-light indoor 3D planes, micro helicopters, and specialized linear actuation projects. By utilizing a high-efficiency micro coreless motor and a direct-drive lead-screw mechanism, this linear servo provides exceptional positional accuracy and smooth proportional stroke in a package weighing just 1.5 grams.

Symmetrical Left & Right (L / R) Configuration

To ensure clean aerodynamic installation and balanced weight distribution on micro airframes, this product comes in dedicated Left (L) and Right (R) mirrored configurations. This allows symmetrical wing mounting for ailerons or twin-rudder linkage setups without needing complex inverted mechanical geometry.

Precision Lead-Screw Linear Drive

Unlike traditional rotary horn servos that require complex Push-Pull linkages, this linear servo converts motor rotation directly into linear travel via a precision screw shaft. This reduces backlash, eliminates linkage flex, and delivers instantaneous control surface response for aggressive indoor 3D aerobatics.

Key Advantages & Integration Features

  • Direct 1S LiPo Operation: Designed to run seamlessly directly off a single-cell LiPo battery (3.7V – 4.2V) without needing a heavy external BEC.
  • Universal Micro Connector: Pre-wired with flexible silicone wires and a JST-SH 1.25mm 3-pin connector, fully compatible with standard ultra-micro receivers (e.g., Spektrum, Flysky, FrSky micro receivers).
  • Compact PCB Chassis: Built directly on a high-rigidity fiberglass PCB frame with pre-drilled mounting tabs for easy installation using micro screws or foam-safe adhesive.

Technical Specifications

Weight 1.5g ± 0.1g (including wire and connector)
Operating Voltage 3.7V – 5.0V DC (1S LiPo Battery Compatible)
Configuration Left (L) & Right (R) Mirror Pairs
Motor Type High-Speed Micro Coreless Motor
Transmission Type Precision Metal Lead Screw & Spur Reduction
Stall Torque 0.12 – 0.18 kg.cm @ 4.2V
Operating Speed 0.08 sec / 8mm travel @ 4.2V
Maximum Stroke / Travel 8.0 mm linear travel
Connector Type JST-SH 1.25mm 3-Pin Pitch (JR / Futaba Signal Compatible)
Control Signal PWM (1000 – 2000 µs) Standard Receiver Signal
Dimensions 21.4mm × 15.2mm × 6.0mm

Key Features

Ultra-light 1.5g weight design perfect for extreme micro RC weight saving
Mirror image Left (L) and Right (R) pairs for symmetrical control surface mounting
High-accuracy linear lead-screw drive ensuring zero slop and smooth stroke control
Fast response coreless motor providing precise control feedback
Integrated micro digital IC board ensuring tight deadband and high holding torque
Standard JST-SH 1.25mm pitch connector for plug-and-play receiver compatibility
Durable PCB mounting holes allowing secure micro screw or glue installation
Compatible with 1S LiPo (3.7V - 4.2V) direct power supply setups

Applications

Micro 3D indoor RC airplanes & ultra-light foamies
Sub-micro RC helicopters, ornithopters & micro gliders
FPV micro fixed-wing aircraft & indoor park flyers
Micro scale model control surfaces (ailerons, elevators, rudders)
Precision micro bio-robotics & miniature linear actuators
Scale model train switches, pantographs & animated mechanisms
Email: Tina Lu WhatsApp: Tina Lu