Kailh GM Red 4.0 Micro Mouse Switch

- Jan 15, 2020-

Kailh GM Red 4.0 Micro Mouse Switch


Common actuation force, crisp hand-free, uniform springback and no hysteresis.
The red micro switch with 60 million times click ;24K gold contacts and grid-like contacts material and structure
Kailh GM Red 4.0 Micro Mouse Switch
CR value (hand touch rate)
The CR value is a parameter value that measures the feel of a button from the stroke and the velocity. Its calculation formula is CR = (OF-CF) / OF, (OF-Operation Force operating pressure, CF-Contact Force trigger pressure), according to research, one feel of the fine micro switch, its CR value range will be controlled at 15% -35%, and the Kaihua GM micro-switch, through continuous improvement and testing, and finally stabilizing the CR value of about 25%. The handle is crisp, the rebound strength is uniform, and there is no hysteresis.

BT jitter value (Bounce Test)
The BT jitter value is the physical property of the mechanical switch. The larger the jitter value, the easier it is to issue an error signal, resulting in a double click. Based on the optimized internal structure, the Kaihua GM micro-switch adopts 24K gold contact and grid-like contact methods, and has made a breakthrough process for the reed, a series of improvements, which effectively slows down the switch at high frequency. The wear of the contacts caused by the strength tapping keeps the mouse function very flexible for a long time. At the same time, the use of 24K gold improves the conductivity of the switch and the ability to resist oxidation and environmental corrosion.