100A 6-12S Single Brushless ESC, BLHeli_S

A single-channel brushless ESC for 6S to 12S power systems, for large FPV builds, heavy multirotors, propulsion test rigs and other UAVs that run one ESC per motor instead of a 4-in-1 board. The long, narrow PCB is easy to mount along an arm close to the motor.

Key features

• 6S–12S LiPo input: handles the 22.2V to 44.4V nominal packs used on heavy-lift and industrial frames.
• EFM8BB21F16G MCU: BLHeli_S-based control driving a high-current MOSFET power stage.
• Dual 63V 330µF capacitors: onboard filtering steadies the supply and suppresses noise during sharp throttle changes.
• Current headroom: sold as a 100A ESC, with its specification sheet quoting 120A continuous and 150A peak.
• Arm-mount form factor: fitting each ESC next to its motor keeps the phase leads short.

Specifications

• Rated current: 100A (spec sheet: 120A continuous, 150A peak)
• Input voltage: 6S–12S LiPo (22.2–44.4V nominal)
• MCU: EFM8BB21F16G
• Firmware: BLHeli_S based
• Capacitors: 2 x 63V 330µF
• Channels: 1 motor

A quadcopter needs four of these plus a power distribution board or wiring harness. Size the motors so their maximum draw stays at or below 100A each, which keeps a margin under sustained load.