MECHANICAL DATA
Keys	3 buttons
Key Switch	Carbon-on-gold key switch technology
Key Travel	1.40mm±0.10mm
Actuation Force	1.8N±0.2N (pressure point)
G.W.	0.20KGs
ELECTRICAL DATA
Supply Voltage	DC +5V±5%
Current Rating	<30mA
EMC Standard	EN 55032:2015, EN 55035:2017
Lifespan	> 5 years
Interface	USB
OS	All Windows, Linux, Unix, Mac OSX, Vxworks, Android, (U-cos--To be confirmed).
ENVIRONMENTAL ADAPTABILITY
Operating temperature	-40℃ to +60℃
Storage temperature	-45℃ to +75℃
Operating RH	3% - 95%
Atmospheric pressure	60-106Kpa
Saline mist	96 hours, IEC 60512-6
Damp heat test at +40℃	21 days, IEC 60512-6
Dry heat test at +85℃	10 days, IEC 60512-6
RELIABILITY
RoHS, CE, FCC, MIL-STD-810H (high and low wide working temperature, low pressure, humidity, vibration, shock, salt spray, temperature shock, drop, rain, sand and dust, fungus, solar radiation etc.)
Protection Level	IP67, IK09
Key Lifespan	>5 million actuations
MTBF	>20000H
MTTR	<30min
APPLICATION	Vehicle, aerospace, naval, defense, maritime, Radar, console, portable rugged laptop, UAV ground station etc.

Key Technology Rugged System Ltd

K-TEK-M77-DHP-ML