Description
The BLDC3525 Brushless DC Motor is a compact 36mm motor with an integrated Hall-effect driver, eliminating the need for a separate external BLDC driver for basic operation.
Available in 12V and 24V versions, the motor supports PWM/analog speed control, CW/CCW direction control, and FG speed feedback through its 5-wire interface. Its brushless construction provides long service life and reduced maintenance compared with conventional brushed DC motors.
The compact Ø36mm housing, ball-bearing support, and integrated control electronics make the BLDC3525 suitable for robotics, automated equipment, smart devices, electric doors and windows, rotating mechanisms, and compact motion-control applications.
Two shaft configurations are available: 3mm shaft with 9mm length and 3mm shaft with 12mm length.
Key Features
- Brushless DC motor with integrated driver
- 12V and 24V versions
- Compact Ø36mm motor body
- Built-in Hall-effect electronic commutation
- No external BLDC driver required for basic operation
- PWM / analog speed control
- CW and CCW direction control
- FG speed feedback output
- 9 pulses per revolution FG signal
- Ball-bearing shaft support
- 3mm round output shaft
- 9mm and 12mm shaft length options
- Low-maintenance brushless construction
- 5-wire control interface
- Suitable for continuous motion-control applications
Specifications
| Parameter | Specification |
|---|---|
| Model | CHB-BLDC3525 |
| Motor Type | Brushless DC Motor |
| Driver | Built-In Hall-Effect Driver |
| Voltage Options | 12V DC / 24V DC |
| Motor Diameter | Ø36 ±0.5 mm |
| Motor Body Length | 26 ±0.5 mm |
| Shaft Diameter | Ø3 mm |
| Shaft Type | Round Shaft |
| Shaft Length Options | 9 mm / 12 mm |
| Mounting Holes | 4 × M3 |
| Mounting Hole PCD | Ø25 mm |
| Lead Wire Length | Approx. 280 mm |
| Approx. Weight | 66 g |
| Rotation | CW / CCW |
| Speed Control | PWM / Analog Voltage |
| Speed Feedback | FG Output |
| FG Pulse Quantity | 9 Pulses / Revolution |
| Driver Type | Integrated Hall Driver |
Electrical Performance
| Parameter | 12V Version | 24V Version |
|---|---|---|
| Operating Voltage | DC 12V | DC 24V |
| No-Load Speed | 3000 RPM ±10% | 6000 RPM ±10% |
| No-Load Current | ≤90 mA | ≤130 mA |
| Rated Torque | 40 gf·cm | 90 gf·cm |
| Rated Speed | 2300 RPM ±10% | 4600 RPM ±10% |
| Rated Current | ≤280 mA | ≤400 mA |
| Rated Power | 1.0 W | 4.3 W |
| Stall Protection Torque | ≥170 gf·cm | ≥380 gf·cm |
| Stall Protection Current | ≤0.85 A | ≤1.5 A |
Wiring & Control Interface
| Wire | Function | Description |
|---|---|---|
| Black | GND | Power Ground |
| Red | VCC | DC Power Input |
| White | CW / CCW | Rotation Direction Control |
| Yellow | FG | Speed Feedback Output |
| Blue | Speed Control | 0–5V Control Input |
FG Speed Feedback
| Parameter | Specification |
|---|---|
| Output Type | Open Collector |
| VOH | Min. 4V with 5V / 10kΩ Pull-Up |
| VOL | Max. 0.6V |
| FG Current | Max. 5mA |
| FG Pulses | 9 Pulses / Revolution |
Speed Control
| Parameter | Specification |
|---|---|
| Control Wire | Blue |
| Input Voltage Range | 0–5V |
| Analog Speed Regulation | Approx. 1.2–3.3V |
| Control Method | Motor Speed Proportional to Input Analog Voltage |
Direction Control
| Parameter | Specification |
|---|---|
| Control Wire | White |
| Input Voltage | 0–5V |
| High-Level Input | ≥2V |
| Low-Level Input | ≤0.2V |
| High Level | CCW |
| Low Level | CW |
Dimensions
| Dimension | 9mm Shaft Version | 12mm Shaft Version |
|---|---|---|
| Motor Diameter | Ø36 ±0.5 mm | Ø36 ±0.5 mm |
| Motor Body Length | 26 ±0.5 mm | 26 ±0.5 mm |
| Shaft Diameter | Ø3 mm | Ø3 mm |
| Shaft Length | 9 ±0.5 mm | 12 ±0.5 mm |
| Mounting Holes | 4 × M3 | 4 × M3 |
| Mounting PCD | Ø25 mm | Ø25 mm |
| Lead Wire Length | Approx. 280 mm | Approx. 280 mm |
Applications
- Robotics
- Smart robots
- Automated equipment
- Electric doors
- Electric windows
- Camera mechanisms
- Pan and tilt systems
- Automatic rotating equipment
- Smart appliances
- Compact motion-control systems
- DIY automation projects
Package Includes
- 1 × BLDC3525 Brushless DC Motor with Built-In Driver
Important Notes
- Verify the wiring before applying power. Incorrect wiring may damage the integrated driver.
- Select the correct 12V or 24V motor version for your power supply.
- The M3 mounting holes have limited thread depth. Avoid using excessively long mounting screws that could damage the internal stator winding.
- Speed and torque specifications vary between the 12V and 24V versions.
FAQ
Does this motor require an external BLDC driver?
No. The motor has an integrated Hall-effect driver for electronic commutation and basic motor control.
Can the motor rotate in both directions?
Yes. CW and CCW rotation can be selected through the white direction-control wire.
Can the motor speed be controlled?
Yes. The blue control wire provides a 0–5V speed-control input.
Does it provide speed feedback?
Yes. The yellow FG wire provides an open-collector speed feedback signal with 9 pulses per revolution.
What is the difference between the 12V and 24V versions?
The 24V version provides higher speed, rated torque, and rated power. The 12V version has a no-load speed of approximately 3000 RPM, while the 24V version reaches approximately 6000 RPM.
What shaft sizes are available?
The standard motor uses a 3mm round shaft with either a 9mm or 12mm shaft length.
