MECHANICAL DATA
Key	92 keys (including 2 mouse buttons)
Key technology	Carbon contact + FPC carbon-on-gold key switch technology
Key travel	1.50mm±0.10mm
Switch life	more than 5 million of operations
Actuation Force	1.2N±0.2N
N.W.
ELECTRICAL DATA
Supply Voltage	DC +5V±5%
Current Rating	≤30mA when backlight is off, ≤300mA with backlight on
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 + 75℃
Storage temperature	-50℃ to + 85℃
Humidity test	1. Test temperature: 30℃~60℃,
	2. Test humidity: 95%RH,
	3. Test period: 24h as a cycle, 10 cycles, total 240h
Atmospheric pressure	57kPa~106kPa
Vibration test	0~2000Hz, displacement 1mm, acceleration 70m/s²
Shock test	1. Pulse waveform: post-peak sawtooth wave
	2. Peak acceleration: 40g
	3. Pulse duration: 11ms
	4. Test period: X,Y, Z , 3 times impact to each axial front and back, totally18 times
Temperature shock test	1. Test temperature: -55℃~75℃
Temperature shock test	2. Test period: -55℃ for 2h, 75℃ for 2h, 3 cycles, totally 12h
Fungus test	1. Test temperature: (30±1) ℃
	2. Relative humidity: (95±5) %RH
	3. Test strains: Aspergillus flavus, Aspergillus variegatus, Penicillium cordylus, mucocellus globularis, Aspergillus Niger
	4. Test period: 28 days (total 672 hours)
Salt spray test	1. Place the sample into the Salt Spray Corrosion Test Chamber, temperature inside the chamber is 35 ℃; Spray the sample with a NaCl test solution with a concentration of 5 ± 1% and a PH value of 6.6 for 24h at a pressure of 96kPa; Test duration is 24h.
	2. After 24h of spray, dry and store the sample for 24h in an environment with temperature of 23 ℃ and humidity of 50%;
	3. 1-2 steps as one cycle, test 2 cycles, total 96 h.
	4. After test, exhaust the fog for 10 min, check the sample after cleaning it with flowing water under standard atmospheric conditions.
Rain test	1. Test procedure: Procedure - rainfall and blowing rain
	2. Test direction: keyboard surface
	3. Wind velocity: no less than 18 m/s
	4. Test duration: 3h
Dust test	1. Test procedure: Procedure - Dust Blowing
	2. Dust content: 10.6g/m³±7g/m³
	3. Firstly conduct dust blowing for 6h under 23°C, then adjust the temperature to 60°C and stabilize for 1h, and then re-conduct dust blowing for 6h.
Transport package drop test	1. Test procedure: Transport Drop Test
	2. Sample state: Weight≤45.4kg, Maximum Size<91.0cm;
	3. Drop height: 122cm
	4. Drop count: drop to each surface, edge and corner, 26 times of drop totally.
RELIABILITY
RoHS compliant, CE and FCC certified, meet MIL-STD-810H (high and low wide temperature, low pressure, humidity, vibration, shock, temperature shock, rain, salt mist, sand and dust, fungus,solar radiation etc.).
Protection Level	IP68
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-M275TP-FN-BL-FC-KC-FDT