T-Motor Air 40A ESC

The T-Motor Air 40A is a single brushless ESC engineered for endurance multirotors, aerial photography rigs, and commercial drone builds running 2S to 6S LiPo power. Built with ultra-low internal resistance MOSFETs and T-Motor's dedicated multirotor drive algorithms, it provides smooth throttle linearity, crisp synchronization, and stable efficiency when driving low-kV brushless disc motors.

Key features

• Supports 2-6S LiPo input voltage with 40 A continuous output and 50 A burst headroom for up to 10 seconds
• OPTO design without an integrated BEC to isolate sensitive flight control electronics from ESC voltage noise
• Dedicated multirotor drive timing optimized for high commutation stability with large-stator disc motors
• Supports standard PWM throttle signal refresh rates up to 432 Hz
• Pre-soldered silicone power and motor leads for clean, secure wiring in multirotor arms

Specifications

• Continuous Current: 40 A
• Burst Current: 50 A (up to 10 seconds)
• Input Voltage: 2-6S LiPo
• BEC Output: None (OPTO)
• Dimensions: 68 mm × 25 mm × 8.7 mm
• Weight: 26 g (including leads)

Because the Air 40A uses an OPTO circuit without an integrated step-down regulator, an external UBEC or voltage-regulating flight controller power module is required to supply 5 V power to your receiver and avionics.