CHA HV120 Servo - 28.0Kg.cm 0.09s 37.0g 12mm

Engineered for precision, power, and performance, the CHA HV120 is a compact 12mm HV servo designed for demanding model aircraft applications. With a holding force of 25 kg, it delivers exceptional strength in a slim profile - perfect for tight installations and large models alike.

Unlike conventional servos that use fragile potentiometers, the CHA HV120 series is equipped with a reliable Hall Effect sensor, ensuring superior durability and long-term accuracy. The robust internal design features steel gears, dual ball bearings, and a rugged aluminium case for maximum endurance and performance.

This normal lug version is perfect for fuselage installations. With a 6mm T25 standard spline, it supports a wide variety of Futaba-compatible servo arms—offering versatility for all your setup needs.

The CHA HV120 is perfect for:

• Big gliders - mounting in the fuselage
• Large electric and gas-powered aircraft
• High-performance jets

If you're building for speed, precision, and space efficiency, the CHA HV120H is your ultimate wing servo solution.

CHA HV120 Servo Specifications
Body dimensions	30.0 mm wide x 12.0 mm thick x 35.0 mm high	1.18" wide x 0.47" thick x 1.38" high
Max dimensions	42.0 mm wide x 12.0 mm thick x 39.0 mm high	1.65" wide x 0.47" thick x 1.54" high
Stall torque (4.8V)	18 Kg.cm	250 oz.in
Stall torque (6V)	22 Kg.cm	306 oz.in
Stall torque (8.4V)	28 Kg.cm	389 oz.in
Weight	37 g	1.31 oz
Lead length	21 cm	8.3 in
Operating speed (4.8V)	0.16 sec/60°
Operating speed (6V)	0.13 sec/60°
Operating speed (8.4V)	0.09 sec/60°
Operating voltage	4.8V to 8.4V
Operating temperature	°C
Bearings	2 ball races
Gear material	Hardened Steel
Case material	Aluminium
Motor type	4 Pole Brushless
Working frequency	333 Hz
Dead band/resolution	µs
Pulse width for ± 60º	500-2500 µs
Digital	Yes
Programmable	Yes
Position feedback	Contactless / Hall sensor
Supplied accessories	2 plastic output arms, 4 mounting screws, 3 arm retaining screws
Optional accessories