HAKRC BLS 8B 35A 4-in-1 ESC For FPV Drone – 2–6S, 20x20mm Mount, Damped Light, BLHeli Firmware

Overview

The HAKRC BLS 8B 35A 4-in-1 ESC is a high-efficiency, compact ESC solution designed for 3–6 inch FPV racing drones. Featuring a 20x20mm mounting pattern, this ESC supports 2–6S LiPo batteries and offers a continuous current of 35A with a peak burst of 40A. It uses the EMF8BB21F16G main control chip, imported Japanese MOSFETs, and FD6288Q triple IC drivers for smooth, responsive motor control. Designed with a 6-layer PCB and 2oz copper for enhanced durability and heat dissipation, all solder pads are metal-edged to prevent pad lift during soldering or crashes.

Key Features

• EMF8BB21F16G MCU: 8-bit high-speed microcontroller for stable and efficient motor control.

• Premium MOSFETs & Capacitors: Japanese-imported components for reliable performance and filtering.

• Triple IC Drive (FD6288Q): Smooth throttle response and low-noise operation.

• High-End PCB: 6-layer, 2oz copper PCB with resin plug-hole process and dual-pad design for excellent thermal dissipation and current handling.

• Metallized Pads: All solder pads are edge-wrapped to prevent delamination and improve durability.

• Damped Light Support: Enables regenerative braking, smoother deceleration, and longer flight time.

• Active Freewheeling Technology: Reduces heat generation and increases ESC efficiency.

Specifications

Application

This HAKRC BLS 35A 4-in-1 ESC is ideal for mini quad builds requiring a compact and efficient 20x20mm ESC. Suitable for 3-inch cinewhoops, 4–5 inch racers, and lightweight freestyle drones demanding reliability, thermal stability, and smooth throttle response.

HAKRC 8B35A 4-in-1 ESC, dimensions: 31mm x 29.5mm x 20mm, with M1, M2, M3, M4 outputs and CN4321+-.