2.7A 1S Bi-Directional Brushed ESC Motor Speed Controller

2.7A 1S Bi-Directional Brushed ESC – Compact Electronic Speed Controller for Winch & RC Models

Take precise control of your brushed motor applications with this ultra-compact 2.7A 1S Bi-Directional Electronic Speed Controller (ESC). Designed for winches, RC models, toy modifications, intelligent building blocks, and more, this controller delivers smooth forward and reverse operation in a remarkably small footprint (20×9mm). Made in Mainland China.

Key Features

• Wide Voltage Range: Operates on 3.3V–6V with a continuous current rating of 2.7A and a peak burst capacity of up to 10A — plenty of headroom for demanding winch and model applications.
• Ultra-Compact Design: At just 20×9mm, this ESC fits into tight spaces without sacrificing performance, making it ideal for micro builds and space-restricted projects.
• Mid-Point Start Function: On power-up, an audible "beep" tone confirms readiness. Setting the throttle channel to the 1500µs midpoint (±50µs) triggers a second "beep-beep" tone, signaling motor start — providing a clear, safe initialization sequence every time.
• Wide PWM Range: Adaptive PWM signal acceptance from 700µs to 2300µs ensures compatibility with a broad range of RC receivers and transmitter setups.
• Runaway / Signal-Loss Protection: If the signal line is interrupted or lost, the ESC automatically halts motor output, preventing uncontrolled operation. Simply return to the throttle midpoint and restart after reconnecting.
• Overheat Protection: Built-in thermal protection cuts motor output if the ESC temperature exceeds 150°C and resumes automatically once it cools to 130°C — protecting both the ESC and your motor from heat damage.
• Receiver Power Pass-Through: The ESC can supply power to your receiver and can be modified to accept a dedicated battery line for added flexibility.
• Bi-Directional Control: Full forward and reverse motor direction control — perfect for winch operations, cranes, and reversible drive systems.

Specifications

Usage Notes

• When used as a switch, link only to a three-segment switch channel with a midpoint channel, as this is a bi-directional ESC.
• When adding a battery line, connect it to the throttle channel.
• For hollow-cup motors, the initial duty cycle can be adjusted to a smaller value for optimized performance.

What's in the Box?

• 1× Electronic Speed Controller (ESC)

For guidance on safe electrical component handling and low-voltage electronics standards, refer to the U.S. Consumer Product Safety Commission (CPSC).

Note: Due to monitor calibration differences, actual product color may vary slightly from images. Please allow ±1mm–10mm variance due to manual measurement.

Frequently Asked Questions

Q: What type of motors is this ESC compatible with?

A: This electronic speed controller is designed specifically for brushed motors. It supports bi-directional control (forward and reverse) and is ideal for winches, RC models, toy modifications, and small robotic or building block projects running on 3.3V–6V systems.

Q: Does this ESC work with standard RC receivers?

A: Yes. The ESC accepts a wide PWM input range of 700µs to 2300µs, making it compatible with most standard RC receivers and transmitters. It also supports receiver power pass-through, meaning it can power your receiver directly without a separate BEC.

Q: What happens if the signal is lost during operation?

A: The ESC features built-in runaway/signal-loss protection. If the signal line is disconnected or lost, the motor output will automatically stop. To resume, reconnect the signal line, return the throttle channel to the midpoint (1500µs), and restart.

Q: Is this ESC suitable for 1S LiPo batteries?

A: Yes, the operating voltage range of 3.3V–6V makes this ESC fully compatible with 1S LiPo battery packs, as well as 4×AA battery arrangements and other low-voltage 1S power sources.