K-TEK-B116FK

4 Keys IP65 dynamic Vandal proof Stainless Steel industrial matrix function keypad with  industrial metal dome PCB with gold-on-gold key switch technology with short stroke 0.45mm with excellent tactile feeling for stable and accurate data input, without electronics controller,  with top panel mounting.
Dimensions: 116.0mm x 27.0mm (front panel)MAIN FEATURES:
Stainless steel fascia and key-tops guard willful destruction, against corrosion, shock, dust, falling raining, splashing, hose-directed water and vandal resistant, operation under hostile environments. 
Internet friendly key layout, key-tops are sunk laser-etched in legends and characters via using high quality ink for easy readability, long life to prevent lettering rub-off. Or protrusive engraving available 
With firm tactile key feel, short travel switches, with unique double over-travel protection. 
Waterproof/dirt-proof execution according to degree of protection IP65, waterproof and dirt proof encapsulation with unique membrane. 
Easily mounting into enclosure or panel.

MECHANICAL DATA:
Switching material: Gold-on-Gold 
Actuation Force: 2N+/-0.1N (pressure point) 
Key Travel:0.45mm 
Lettering: laser engraving, or raised letters. 
Front panel:brushed stainless steel 
Actuator/keys materials: stainless steel 
Dimensions:116.0mm x 27.0mm 
G.W. 0.2KGs

ELECTRICAL DATA:
Power supply voltage: 5V DC. 
Power Consumption: Under 150mW for operation, under 50mW for non-operation 
Electrical lifetime> 5 years 
EMC:EN55022(B)

ENVIRONMENTAL ADAPTABILITY:
Operating temperature:-20°C to +70°C 
Storage temperature:-30°C to +80°C 
Operating RH: 30 ～ 90% 
Atmospheric pressure: 60 ～ 106Kpa.

RELIABILITY:
RoHS Compliant, CE and FCC 
Protection Level: IP65(front panel) 
Vandal resistant IK10 
Key Lifespan >5 million actuations 
MTBF >50000h 
MTTR <30min