FA-1715RB (3+5P) Coreless Brushless DC Motor
The FA-1715RB (3+5P) is an ultra-compact 3.5W coreless brushless DC motor with 17mm outer diameter and 15mm short body. It adopts oil-impregnated sleeve bearings and exclusive split 3+5Pin wiring structure, which separates 3-phase winding cables and hall sensor signal cables to reduce signal crosstalk and simplify wiring maintenance. This model includes three 6V low-voltage and one 7.4V lithium battery winding versions with diverse speed-torque characteristics. Optional planetary gearbox and encoder support closed-loop precise drive control for tiny battery-powered equipment with limited mounting space.
• Dimension: Φ17mm × Length 15mm
• Max Transmission Power: 3.5W
• Voltage Options: 6V(01C/04C/05C) / 7.4V(22C)
• Oil-impregnated sleeve bearings + built-in 3-channel hall sensor
• Split 3+5Pin independent wiring; Optional gearbox & encoder
Mechanical Dimensions
Dimensions are in mm. Please refer to the datasheet for tolerances and mounting details.
Performance Parameters
| Motor specifications | 01C | 04C | 05C | 22C | |
|---|---|---|---|---|---|
| Nominal voltage | V | 6 | 6 | 6 | 6 |
| No load speed | rpm | 32500 | 27000 | 34000 | 34500 |
| No load current | mA | 170 | 150 | 230 | 170 |
| Nominal speed | rpm | 27900 | 23200 | 29200 | 29600 |
| Nominal torque | mNm | 1.21 | 1.1 | 1.56 | 1.23 |
| Nominal current | A | 0.83 | 0.65 | 1.12 | 0.75 |
| Stall torque | mNm | 8.7 | 7.9 | 11.1 | 8.8 |
| Stall current | A | 4.92 | 3.7 | 6.59 | 4.3 |
| Terminal resistance | Ω | 1.22 | 1.62 | 0.91 | 1.72 |
| Torque constant | mNm/A | 1.72 | 2.08 | 1.65 | 2.01 |
| Speed constant | rpm/V | 5416 | 4500 | 5666 | 4662 |
| Mechanical time constant | ms | 6.29 | 5.76 | 5.13 | 6.57 |
| Rotor inertia | gcm² | 0.17 | 0.17 | 0.17 | 0.17 |
Optical Gearbox
| N/A | |
|---|---|
Optional encoder
| N/A | |
|---|---|
Terminal data
| N/A | |
|---|---|
Other Specifications
| N/A | |
|---|---|
Engineering Overview
FA-1715RB (3+5P) coreless brushless DC motor eliminates mechanical brush friction, extending service life and reducing electromagnetic interference. Its distinctive split 3+5Pin wiring separates power and signal circuits to avoid signal interference during operation. Ultra-low consistent rotor inertia delivers high-speed, smooth cogging-free rotation. Three 6V low-voltage and one 7.4V lithium battery winding options match various portable battery-powered devices. Built-in hall sensors provide real-time speed feedback, and matched gearbox boosts output torque for miniature positioning equipment with narrow installation space.
Typical Applications:
• Mini wearable intelligent electronic modules
• Handheld beauty and portable medical instruments
• Micro robot miniature drive actuators
• Compact battery-powered precision testing equipment
Need customized 3+5Pin wiring or high-speed winding?
FA-1715RB (3+5P) ultra-compact coreless brushless DC motor adopts split 3+5Pin cable design, with multiple 6V/7.4V high-speed variants available. Our team can optimize coil parameters and match gearbox & encoder according to your installation space and load requirements.