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The Cyclone 35A ESC is a BLHeli_S DShot600 OPTO ESC for FPV racing. The page says its 32-bit STM32F051 main control chip has faster response and processing, and a working frequency of up to 48 kHz with a high-performance three-in-one drive reduces throttle signal delay.
The page is inconsistent on its ratings: the title says 35A and 2-6S, while the specification table gives a power supply of 2-4S (7.4-16.8V), a continuous current of 25A and a burst of 30A, and the features say a burst of 35A (5S). Use the 25A continuous figure when you size your power system. The PCB and power cord are 12 cm and the signal line is 16 cm. The page showed low stock (10 left) at Rs 1,299 (SKU RS7312).
32-bit STM32F051 main control chip: for faster response.
Operating frequency up to 48 kHz: as described.
Three-in-one drive: for lower throttle signal delay.
Programmable PWM up to 48 kHz: as listed.
Auto-timing: for efficiency and reliability.
BLHeli_S DShot600 OPTO: as named in the title.
An electronic speed controller (ESC) converts the throttle signal from the flight controller into the three-phase power that a brushless motor needs. It switches battery current through MOSFETs at high speed, so the motor turns at the speed that the pilot or autopilot asks for. The continuous current rating shows how much current the ESC can carry all the time, and the burst rating shows what it can survive for a few seconds.
Match the ESC to the rest of the power system. The battery cell count must fall inside the listed range, the continuous current must be higher than what your motor and propeller draw at full throttle, and the signal protocol (for example PWM, Oneshot, Multishot or DShot) must be supported by your flight controller. An ESC marked OPTO has no built-in BEC, so the receiver and flight controller need power from another source. An ESC with a BEC can supply a regulated voltage, usually 5V, to small electronics.
Install and test carefully. Solder joints must be clean and strong, the motor wires should be kept short and tidy, and the ESC needs airflow because current makes heat. Calibrate the throttle range if the ESC needs it, check the motor direction with the propellers removed, and never connect a battery with the propellers fitted while you are working on the wiring. Use a battery with a cell count and connector that suit the ESC, and check for a heat problem after a short test hover.
FPV racing
BLHeli_S builds
DShot600 setups
Small quads
OPTO ESC builds
Check the battery range and current rating with the seller because the page lists more than one figure. The safe reading is 25A continuous.
The ESC is OPTO, so it has no BEC.
Item type: brushless ESC
Power supply: 2-4S (7.4-16.8V) per spec table
Continuous current: 25A
Burst current: 30A (spec table); 35A (5S) in features
PCB and power cord length: 12 cm
PCB and signal line length: 16 cm
MCU: STM32F051 (32-bit)
1 x Cyclone 35A ESC 2-6S BLHeli_S DShot600 ESC
Racing builders who want a BLHeli_S DShot600 OPTO ESC.
25A per the spec table, though the title says 35A.
DShot600.
A 32-bit STM32F051.
12 cm power and 16 cm signal.
| Brand | Cyclone |
|---|---|
| Continuous Current | 25.000000 A |
| Power Supply | 2-4S (7.4-16.8V) |
| Selling unit | PCS |
