D131MW

8.5mm, Cored, Standard Voltage, High Torque, Metal Gear Actuator (7.4V)

The D131MW is an 8.5mm ultra-slim, high-torque servo actuator built for engineers demanding maximum performance in nano and slim-wing form factors. Featuring a high-efficiency coreless motor, five metal gears, and dual ball bearings, the D131MW is engineered for long-term durability and precise control in robotics, RC aircraft, and compact industrial actuation applications.

Operating at 3.5–8.4V with both PWM and TTL protocol support, the D131MW delivers stall torque of up to 2.7 kgf·cm (37.5 oz·in) at 7.4V with a no-load speed of 0.11 sec/60° — outstanding performance for a servo weighing just 9.4 grams in a 22.0 × 8.5 × 22.8mm footprint.

Equipped with Hitec's proprietary Smart Sense Technology, the D131MW provides real-time servo analytics — monitoring load, temperature, and performance data to optimize actuation and protect against overload in demanding applications. High-response, high-resolution digital circuitry ensures precision control across the full voltage range.

The M25T (Ø5) horn gear spline offers secure output coupling, and the hardened metal case provides structural rigidity in compact installations. Compatible with the DPC-20 and HFP-30 programmers for full parameter customization including end points, fail-safe, dead band, and speed control.

Backed by Hitec's ISO 9001:2015 certification and 50+ years of servo engineering expertise, the D131MW is a trusted choice for RC builders, robotics engineers, and system integrators who need proven performance in the smallest possible package.

Part #: 36131S

$89.99

QTY:

INTERNATIONAL INQUIRIES - CLICK HERE *Customers outside the United States must contact sales directly to purchase.
Performance Specifications  
Command Protocol PWM
PWM / TTL
Operating Voltage (V) Min: 4.80
Max: 7.40
Weight (g) Min: 9.40
Stall Torque (kgf•cm / oz•in) Min: 1.7 / 23.61
Max: 2.7 / 37.5
No Load Speed (sec/60°) Min: 0.17
Max: 0.11
Running Current (mA) Min: 75
Max: 110
Stall Current (mA) Min: 700
Max: 900
Circuit Digital
Rotation Standard
Operating Voltage (V) Min: 4.80

Max: 7.40
Torque Range Min (KG/CM): 2.70

Max (N/CM): 0.00
Max Speed (SEC/60) 0.11
Physical Specifications  
Case Size (mm) 8.50
Dimensions (mm) 22.0 x 8.5 x 22.8
Weight (g) 9.40
Motor Type Coreless
Potentiometer Conventional
Gear Material 5 Metal
Horn Gear Spline M25T (Ø5)
Case Material Hardened Metal
IP Rating N / A

Contact Sales Directly for Replacement Parts:

• Case Set
• Gear Set
• Horn Set


Actuator Sales
Seth Cohen
seth.cohen@hiteccs.com
(858) 737-9220 x311

General Sales
sales@hiteccs.com


Standard Programming Functions
  • End Point Adjustments
  • Direction
  • Fail Safe
  • Dead Band
  • Speed (Slower)
  • Soft Start Rate
  • Overload Protection
  • Data Save / Load
  • Program Reset
 
IMPORTANT INFORMATION > DPC-20 PROGRAMMER 
  • Hardware Type: PC USB-C to 3-pin (PWM/TTL) and 4-pin (RS485/CAN) interface.
  • Capable of configuring and testing HITEC digital servo actuators.
  • Compatible with various control methods (PWM, RS485, CAN), offering a seamless transition from legacy DPC-11, DPC-485, and DPC-CAN units.
  • Different servo actuator series require dedicated UI programs due to variations in communication protocols.
  • Ensure you connect the appropriate power supply to the DPC-20 for the connected servo actuator.
  • For servo actuators (5/7 Series, 9 Series, D/MD Series), connect to the 3-pin port on the DPC-20, and connect the power supply to the BAT- and BAT+ pins on the 4-pin port, paying careful attention to polarity.
  • DPC-20 Wiring Diagrams are located on the DPC-20 UI HUB DOCUMENTATION.

Additional downloads can be found on our ACTUATOR RESOURCES page under our Support tab.
Contact Sales directly if you are unable to locate a specific resource download:



General Sales
sales@hiteccs.com
(858) 737-9220 x311​