Low / Mid Power Die

Low / Mid Power Die

Plessey manufactures low cost high efficiency low and mid power GaN-on-Silicon blue die. The die can be customised for packaging for a wide range of applications in general lighting including industrial, retail, hospitality and outdoor applications. Custom die are available for signage, wearable, display and print head applications. The die can be assembled as single devices or in strings or arrays, for example in CoB designs.

The patented manufacturing process produces a surface emitting structure which has excellent light uniformity and thermal conductivity. Die can be supplied in industry standard sizes up to a maximum of 100mil square. Both 3V and 6V die architectures are available.

Plessey offers its family of blue die in a range of wavelength options, to cover uses from near UV medical products to visible blue light sources. The standard product provides the blue pump for phosphor conversion to white light.


  • Simple low cost surface emitting designs
  • Single junction and multijunction architectures
  • Up to 65% WPE at 18A/cm2
  • Input current from 5mA to 350mA; peak input current up to 700mA.
  • Wavelength 440-480nm as standard; 410nm-430nm & 490nm versions available on request
  • Scalable from 7mil to 100mil with no loss of efficiency
  • Aspect ratios from 1:1 to 3:1
  • All die manufactured on low cost 6” (150mm) Silicon substrates
  • All die supplied sawn and mounted on membrane
  • Die thickness 150um as standard, 75um on request
  • Gold back metal suitable for solder (AgSn) & epoxy die attach
Product Colour Wavelength (nm) Nominal VF (V) Nominal IF (mA) Nominal Radiant Power (mW) Dimensions Features Datasheet Sample / Purchase
PLB0H1712*G 450-480 12 50 350 (1150x1700µm) (45x67mil) Multijunction die