14mm Brushless DC Motor – 12.5mm 3900KV Type Model TSL-BLDC-1405-3900KV
♦ Basic Info:
- Brand:TSL
- Origin:China
- Motor Model:TSL-BLDC-1405-3900KV
- Motor Type:Outrunner Rotor BLDC Motor
- Stator Arms:9
- Magnet Poles:12
- Motor KV:3900 rpm /V
- #More Specifications
- #Outline Drawing
- Download Datasheet
♦ Typical Applications:
- Sub-Micro Long Range FPV Drones
- Miniature Fixed-Wing Reconnaissance Aircraft
- High-Precision Medical Centrifuges
- Lightweight Gimbal Stabilization Systems
- Portable Handheld Cooling Fans
Small BLDC Motor TSL-BLDC-1405-3900KV Datasheet
This precision-engineered small BLDC motor delivers a high torque-to-weight ratio, making it an ideal propulsion solution for compact aerial platforms. Its optimized electromagnetic design ensures smooth power delivery and rapid acceleration during flight.
Our ultra-lightweight 5-gram small BLDC motor is built for maximum efficiency, providing up to 100g of thrust with minimal energy consumption. The 1405 series architecture offers the perfect balance of structural durability and lightweight performance.
Every small BLDC motor undergoes strict dynamic balancing to minimize vibration and noise at high RPMs. Featuring a high-quality 1.5mm shaft and 3900KV rating, it ensures long-lasting reliability for both hobbyist and professional applications.
| Motor Model | TSL-BLDC-1405-3900KV |
| Stator Diameter | 11mm |
| Stator Thickness | 4mm |
| Stator Arms | 9 |
| Magnet Poles | 12 |
| Motor KV | 3900 RPM/V |
| No-Load Current(Io/10V) | 0.3 Amps |
| Max Continuous Current | 4 Amps |
| Max Continuous Power | 32 Watts |
| Weight | 5 Grams |
| Outside Diameter | 14.2 mm |
| Shaft Diameter | 1.5 mm |
| Body Length | 12.5 mm |
The brushless small bldc motor’s technical specifications are for guidance，we offer custom solutions upon request.
⇒Unit Coversion: 1 g·cm ≈ 0.098 mN·m ≈ 0.014 oz·in；1 mm ≈ 0.039 in；1 g ≈ 0.035 oz1
Small BLDC Motor TSL-BLDC-1405-3900KV Electric Regulator
The following data illustrates the superior electrical efficiency of our small BLDC motor when paired with standard ESC protocols. These benchmarks provide critical insights into power consumption and heat management at peak performance.
Our small BLDC motor is rigorously tested at various voltage levels to guarantee stable thrust output and linear throttle response. This detailed performance table assists engineers in optimizing battery life and flight stability.
The benchmarks highlight the impressive 3.97g/W efficiency of this small BLDC motor, ensuring your system operates at its peak thermal window. Use these parameters to fine-tune your PID settings for maximum aerial precision.
| Motor Model | Paddle Blade | Voltage | Throttle | Current | Tension | Power | Efficiency |
| V | A | g | W | g/w | |||
| TSL-BLDC-1405-3900KV | 3520 | 7.4 | 100% | 3.4 | 100 | 25.16 | 3.97 |
💕The brushless micro drone motor’s technical specifications are for guidance，we offer custom solutions upon request.
⇒Unit Coversion: 1 g·cm ≈ 0.098 mN·m ≈ 0.014 oz·in；1 mm ≈ 0.039 in；1 g ≈ 0.035 oz1
1405 Small BLDC Motor Mechanical Drawing
Unless otherwise stated, all dimensions are in millimeters.
Development Samples:
If you need samples, please contact us.
Engineering & Manufacturing:
Contact any or the Sales Engineers for a quotation for production or consultation on the integration and customization of your product.
Payment:
1.Payment methods : Paypal, T/T
Shipping:
1.Delivery: DHL/FedEx 3-5 days.
2.Item will be shipped within 1-3 business days after the payment.
3.If you haven’t received the item on the Delivery Time, pls contact us by email if you have any questions. Normally, we will give you a reply within 24 hours, if not, pls check the spam of your email box. We will do our best to help you solve the problems.
4.Please make sure your address is matched with the finally shipping address before you pay.
FAQ for Brushless Motor
Q：What is Brushless DC motor?
A:A brushless DC motor eliminates the need for a commutator and brushes by placing permanent magnets on the rotor. The rotor’s rotation is controlled by detecting its magnetic poles and adjusting the current flow through the coils accordingly.
If you want a video to explain the principle of Brushless DC motor, you can click on this link：https://www.youtube.com/watch?v=1AaUK6pT_cE
Q:Can Brushless DC Electric motor Be Customized?
A: Yes,Brushless DC Electric motor can be customized. TSL Motors, a top manufacturer, offers options to adjust torque, speed, and voltage. This ensures the motor meets the specific needs of your application.
Q: How do I place an order?
A: Send us an inquiry and we will send you a quote – make arrangements – confirm the sample – sign the contract/deposit mass production – delivery ready for delivery. Balance/delivery
Q: What about Sample Order?
A: Sample are available to you. Contact us for specifics. If we charge you a cost for the sample, you can take it at ease, as it will be the refund you receive when you make a formal order.
Q: If it is a customized version the information you provide, what should you include?
A: You should give the fundamental specifications of the motor, for example Dimensions Applications, Sizes as well as Voltage, Speed and Torque. It is better to provide an application-specific prototype drawing to us when you can.
Tap:If you request a quotation for mass production quantities, contact us for customizations and integration.
Motor Customization Guide
Please tell us your requirements. Our engineers will give you the best solution for your application.
✅Collaborate with Specialists
Our engineering team brings decades of motor technology expertise to every project.
✅Seamless Global Partnership
Communicating with us is a breeze.
We’ll adapt to your time zone, making sure that information and ideas are exchanged promptly.
Right from the start, you can rest assured that your thoughts are fully grasped.
Get In Touch
Start a discussion with our team today!
