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Keyboards

icon-keyboard-kpb

Keyboards.
Keyboards & plastic boxes offers various keyboards, membrane keyboards without touch sensation, touch sensation membrane keyboards (metal dome and thermo-shaped), backlit membrane keyboards, FPC membrane keyboards, mixed keyboards with PCB base.

01 Frontal keyboards

Polycarbonate or polyester frontal keyboards of different thickness (125, 200, 250, 350, 500 µm). Matt or gloss materials. Thousands of colours and shapes. Mirrored gloss glass printing, translucent colours for excellent digital display reading or liquid crystal display (reinforceable with glass or transparent polycarbonate). Fully watertightIP65 seal.

02 Membrane keyboards

With a fully customised design and various types of keyboards: membrane keyboards without touch sensation, touch sensation membrane keyboards (metal dome) and thermo-shaped touch sensation keyboards. (Any of these may have SMD LEDS inserted.) These allow millions of key strokes and can be supplied with metal or plastic supports.

03 Mixed keyboards with PCB base with different thicknesses

Gold-plated electrical contacts that will allow any type of connector to be inserted, SMD LEDs, screws or various components. We can also manufacture gold-plated FPC keyboards and insert LEDs or SMD components.

04 Silicone keyboards

Resistant and non-resistant silicone keyboards: Any shape and size, soft or rigid surfaces, carbon contact or gold metallic, glass printing guaranteeing resistance, backlit silicone keyboards.

Features

  • Customisable design
  • Millions of key strokes
  • Resistant to temperature, humidity and hostile environments
  • Sealed IP65 keyboards.
  • Relatively short manufacturing times. (4/5 weeks)

A range of alternatives

  • Integrated LEDs
  • Reliefs
  • Metal supports
  • EMI plating

Parameters

Electrical Flat Polyester dome Metal dome
Operating voltage 1 – 48 V 1 – 48 V 1 – 48 V
Operating intensity 1 – 50 mA 1 – 50 mA 1 – 50 mA
Contact resistance 5 0hm tip. 5 0hm tip. 1 0hm tip.
Track resistance 1 Ohm / cm Max. 1 Ohm / cm Max. 1 Ohm / cm Max.
Insulation resistance > 100 Mohms > 100 Mohms > 100 Mohms
Cutting power 0,8 W 0,8 W 0,8 W
Dielectric specification (1 min.) 500 V 500 V 500 V
Life cycles 5 million >1 million 1 million
Bounce time < 10 ms < 10 ms < 20 ms
Mechanical Flat Polyester dome Metal dome
Minimum distance between keys 12 mm 14 mm 16 mm
Connector BERG/NICOMATIC BERG/NICOMATIC BERG/NICOMATIC
Contact strength 0,6 – 3 N 0,6 – 3 N 2,7 ± 0,2 N
Range 0,2 mm 0,3 – 1 mm 0,6 mm
Minimum thickness (with LEDs) 0,8 mm 0,8 mm 0,8 mm
Minimum thickness (without LEDs) 0,6 mm 0,6 mm 0,6 mm
Environmental Flat Polyester dome Metal dome
Thermal shock -20° C / 70° C 10 days / (period 1 day) (In these conditions it loses touch sensation) -20° C / 70° C 10 days / (period 1 day)
Dry heat 70° C 21 days (In these conditions it loses touch sensation) 70° C 21 days
Humid heat 45° C 95 % h.R. 21 days (In these conditions it loses touch sensation) 45° C 95 % h.R. 21 days
Storage temperature -40° C / +100° C -40° C / +65° C (At a higher temperature it loses touch sensitivity) -40° C / +100° C
Working temperature -20° C / +70° C -20° C / +55° C (At a higher temperature it loses touch sensitivity) -10° C / +70° C

Integrated LEDs

Integrated LEDs Red Yellow Green
Light intensity IF=20mA 10 mcd 6,3 mcd 6,3 mcd
Peak inverse voltage 4 V 4 V 4 V
Direct peak intensity 75 mA 60 mA 60 mA
Leakage current 100µ A 100µ A 100µ A
Dissipation power (25° C) 75 mW 70 mW 70 mW
Viewing angle 160° 160° 160°