User's Manual

1. SCOPE
This document provides a specification for the SEJIN standard USB keyboard.
2. MECHANICAL PERFORMANCE
2.1 Key switch Operation
2.1.1 Operating system
Non - lock rubber tactile feeling.
2.1.2 Stroke
3.5±0.5mm with measuring load 200gf applied.
2.1.3 Operating Region
ON/OFF
Swithing
region
0.7mm
0.8mm
Total traval
3.5
±0.5
mm
Bottom end
To
p
end
ON re
g
ion
OFF re
g
ion
2.1.4 Operating force
The operating curve is defined to the following drawing and the relationship
between the operating force and travel is provided. The operating force has a
tolerance of 60± 25gf
2.2 Operating feeling
No definite stickiness or other abnormality shall be allowed when force is
applied with a finger to keytop center at the rate of 3 times on a second.
2.3 Construction and dimensions
Note: The applied keycap for “F” row is “E” row keycap.
2.0mm