HAKRC BLS 35A 4-in-1 ESC for FPV Drone – 20x20mm, 2–6S, DShot600, BLHeli-S Firmware, 6-Layer PCB

The HAKRC BLS 35A 4-in-1 ESC is a high-efficiency electronic speed controller designed for FPV racing drones and compact multirotor builds. Featuring a compact 20x20mm mounting hole layout and powerful EMF8BB21F16G processor, it supports up to 2–6S LiPo, delivering 35A continuous and 40A peak current per channel.

Built on a 6-layer PCB with 3oz thick copper, this ESC ensures superior heat dissipation and current flow. It incorporates Toshiba 30V high-current MOSFETs, Murata ceramic capacitors, and a three-in-one FD6288Q driver IC to guarantee long service life and stable operation even under extreme load.

Key Features

• Processor: EMF8BB21F16G, 48MHz

• Firmware: BLHeli-S, version G_H_20 – Rev. 16.7 – Multi

• Input Voltage: 2S–6S LiPo

• Continuous Current: 35A per channel

• Peak Current: 40A

• Mounting Dimensions: 20x20mm (M3 holes)

• Product Size: 31 x 30 x 6 mm

• Net Weight: 6.1g

• Packing Size: φ62 x 33 mm

• Packing Weight: 13g

Supported Protocols

• PWM, OneShot125, OneShot42, MultiShot

• Digital: DShot150, DShot300, DShot600

Advanced Performance

• BLHeli-S Firmware: Offers reliable performance and flexible tuning via BLHeliSuite, CleanFlight, or BetaFlight.

• Damped Light Technology: Enhances motor braking response and supports regenerative braking for improved flight control and battery efficiency.

• Hardware PWM Drive: Delivers smooth throttle response with reduced motor noise.

• High-End Build Quality: Dual-layer soldering pad design with gold-plated edge for enhanced durability and reduced risk of pad detachment.

Whether you're upgrading your mini FPV quad or building a custom 3–5 inch racer, the HAKRC BLS 35A 4IN1 ESC delivers reliability, compactness, and customizable performance trusted by serious pilots.

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