Illuminated Keyboards

Solar Biotronic Laboratories Illuminated keyboards are specially made for dim light areas. Solar Biotronic Laboratories uses SMD LEDs, EL Layers or Optical fibers to illuminate such keyboards. To enhance Illumination, Solar Biotronic Laboratories uses special raw materials and assembly techniques. Illumination can also be achieved using back lighted mechanical switches.

The specifications for these switch panels are similar to the specifications of Sealed Keyboard Panels (Low Profile Push button Switches)


Electrical:

     
  Contact Arrangement :   SPST Normally Open
  Current / Voltage Rating :   10 mA at 24 VDC (max) in to resistive load only
  Contact Resistance :   Compatible with MOS, TTL & DTL Circuits
  Contact Bounce :   Less than 10 milliseconds at make & 20 milliseconds at break
       

Mechanical:

     
  Operating Force :   220 to 380 gf
  Key Travel :   380 microns
  Life expectancy :   One million to Three million operations
  Operating Temperature :   -20 deg to 65 deg centigrade
  Humidity :   95% RH at 40 C
       

Materials:

     
  Base :   Glass Epoxy PCB FR4 Grade in thickness ranging from 0.4 mm to 3.2 mm
  Plating :   Bright Acid Tin; Nickel, Gold over Nickel
  Adhesives :   Industrial Grade from 3M , Avery Dennision
  Overlays :   Polycarbonate - Lexan; Polyester - Autotex