Holybro Tekko32 F4 4in1 50A ESC(AM32)
by Holybro

The Holybro Tekko32 F4 4in1 50A ESC (AM32) is a high-performance 30.5x30.5mm 4-in-1 electronic speed controller designed for 5-inch to 7-inch FPV freestyle and racing quadcopters. Powered by an F4 MCU running at 150MHz and pre-flashed with open-source 32-bit AM32 firmware, this ESC delivers rapid motor response, smooth power delivery, and high PWM frequencies ranging from 16kHz to 96kHz for efficient motor management.

Engineered with a separated drive and control circuit layout, the Tekko32 F4 minimizes electrical interference between the power stage and signal processing components. Rated for 50A continuous and 60A burst current per channel on 4S to 6S LiPo power, it features low-resistance MOSFETs, onboard analog current sensing, telemetry output, and an included 1000uF 35V low-ESR capacitor for clean power filtering.

Key Features

• 150MHz 32-Bit F4 MCU: High-speed main processor delivers fast signal processing and low-latency motor control.

• Pre-Flashed AM32 Firmware: Runs open-source 32-bit AM32 firmware, offering smooth low-RPM startup and power efficiency.

• Separated Drive & Control Circuitry: Separates high-current power switching from delicate control signals to reduce electrical noise transmitted to the flight controller.

• 50A Continuous / 60A Burst Output: Four independent 50A channels provide reliable power handling for 4S–6S freestyle and racing motor setups.

• Configurable PWM Frequency (16kHz–96kHz): Adjustable PWM switching frequency balances motor response, mid-throttle smoothness, and overall power consumption.

• Standard 30.5x30.5mm Mounting: Industry-standard M4 mounting holes fitted with M3 anti-vibration silicone grommets for clean stack integration.

Technical Specifications

• Brand / Manufacturer: Holybro

• Model Identifier: Tekko32 F4 4in1 50A ESC (AM32)

• Main Processor (MCU): 32-Bit F4 MCU @ 150 MHz

• Firmware: AM32 (Target: AM32_TEKKO32_4IN1_F421)

• Continuous Current: 50A x 4

• Burst Current: 60A x 4

• Input Voltage Range: 4S – 6S LiPo (14.8V – 25.2V DC)

• PWM Frequency Range: 16 kHz – 96 kHz

• Digital / Analog Signal Support: DShot150/300/600/1200, ProShot, MultiShot, OneShot, PWM

• Current Sensor: Onboard Analog Current Sensor (Amperage Meter Scale Ratio: 120)

• ESC Telemetry: Supported (Telemetry Output Pad)

• BEC Output: None (Direct Battery Voltage Pass-Through)

• Mounting Pattern: 30.5 mm x 30.5 mm (M4 Holes with M3 Grommets)

• Dimensions: 48 mm x 37 mm x 6 mm

• Net Weight: 13.8 grams

What Is Included

• (1) Holybro Tekko32 F4 4in1 50A ESC (AM32)

• (4) M3 Anti-Vibration Silicone Grommet Inserts

• (1) 1000uF 35V Low-ESR Electrolytic Capacitor

• (1) 8-Pin to 8-Pin 1mm Pitch 65mm Cable

• (1) 8-Pin to 8-Pin 1mm Pitch 25mm Cable