Brake actuators are electromechanical components converting electronic signals into mechanical force to apply vehicle brakes. Typically integrated within electronically controlled braking systems like ABS, ESC, and park assist, they replace traditional vacuum or hydraulic boosters. Actuators utilize electric motors, ball screws, or solenoids to engage brake calipers directly or modulate hydraulic pressure. These units incorporate position sensors for system feedback and often include integrated solenoids for proportional control. Robust housing and sealing are critical due to exposure to road contaminants and temperature fluctuations. Proper function relies on precise electronic calibration and mechanical linkage to the braking system.