Holybro Tekko32 F4 45A ESC (AM32)
by Holybro

The Holybro Tekko32 F4 45A ESC (AM32, SKU: 31104) is an ultra-compact individual electronic speed controller designed for high-performance FPV quadcopters, fixed-wing aircraft, and custom drone platforms. Powered by a 32-bit ARM Cortex F4 microcontroller running open-source AM32 firmware, this ESC provides low-latency signal processing, smooth motor commutation, and high efficiency across varying throttle ranges.

Supporting 2S to 6S LiPo input voltages with a continuous rating of 45A, the Tekko32 F4 features an onboard current sensor, an integrated status RGB LED, and signal support up to DShot1200 at 32kHz. Weighing only 5.8g with a compact 17.3 mm x 34.3 mm x 4.5 mm footprint, it is built for individual arm-mounting setups requiring dedicated motor channels and direct airflow cooling.

Key Features

• High-Speed 32-Bit F4 MCU: Delivers rapid processing speed and low-latency throttle response running AM32 firmware.

• DShot1200 Support: Capable of running digital motor protocols up to DShot1200 at refresh rates up to 32kHz.

• PWM Frequencies up to 48kHz: Variable PWM rate settings smooth out the motor RPM band and increase motor efficiency.

• Integrated Current Sensor & Telemetry: Provides real-time amperage monitoring and telemetry feedback to the flight controller.

• Onboard RGB LED: Provides visual status indication and initialization feedback directly on the ESC board.

• Auto Timing Optimization: Automatically tunes motor timing for optimal efficiency and throttle linearity across motor Kv ranges.

Technical Specifications

• Brand / Manufacturer: Holybro

• Model Identifier: Tekko32 F4 45A ESC (AM32)

• Manufacturer SKU: 31104

• ESC Architecture: Individual / Single Channel ESC

• Processor (MCU): 32-Bit ARM Cortex F4 MCU

• Firmware: AM32

• Continuous Current: 45A

• Input Voltage Range: 2S – 6S LiPo (7.4V – 25.2V DC)

• Motor Protocols Supported: DShot150/300/600/1200 (up to 32kHz), PWM

• PWM Switching Frequency: Up to 48 kHz

• Current Sensor: Onboard Analog Current Sensor

• Telemetry Output: Supported

• Status Lighting: Onboard RGB LED

• BEC Output: None

• Dimensions: 17.3 mm x 34.3 mm x 4.5 mm

• Net Weight: 5.8 grams

What Is Included

• (1) Holybro Tekko32 F4 45A ESC (AM32, SKU: 31104)

• (1) 330uF 35V Electrolytic Capacitor

• (1) 24AWG 100mm Black Wire

• (1) 24AWG 100mm White Wire

• (1) 24AWG 100mm Blue Wire

• (1) 16AWG 100mm Red Power Wire

• (1) 16AWG 100mm Black Power Wire