The PT-121-TE chipset is a derivative of the PT-120 that consists of individually packaged Red, Green and Blue LEDs, each with a monolithic emitting area of 12 mm2, and a 4:3 aspect ratio optimized by not limited to XGA and SXGA+ resolutions.

The PT-121-TE is targeted for projection systems using micro-displays ranging from 0.65" to 1". PT-121 is an ideal light source for lamp-free front projectors in business, education or commercial applications

Like all Luminus projection Big Chip LEDs, the PT-121 can be used with DLP®, LCoS and HTPS LCD micro-displays. PT-121 devices are also available in chipset or individually for high performance illumination applications


  • 12 mm2 emitting area (4.0 mm x 3.0 mm)
  • Typical dominant wavelengths: RED Amber: 613 nm, GREEN 525 nm, BLUE 460 nm
  • Large operating dynamic range with drive current up to 30A (pulsed operation)
  • Single emitting area per color allows for collection with single lens for simplified optics
  • Thermally efficient, metal-core printed circuit board (MCPCB) package (28.0 mm X 26.75 mm footprint) with 0.4 °C/W thermal resistance

Benefits & Applications

  • Wide color gamut for vivid colors, exceeds NTSC
  • Environmentally friendly technology: Mercury-free, RoHS compliant
  • Instant start: no more wait time
  • High reliability: no more lamp replacement
  • Applications: Projection Displays, Specialty, Industrial and Medical Lighting
  • Active
    Dominant Wavelength Chip Emitting Area Package Type & Dimensions Drive Current Typical Lumen range
    Red Amber: 613nm
    Green: 525nm
    Blue: 460nm
    4.0mm x 3.0mm MCPCB, 28.0mm x 26.75mm 36.0A* Red Amber: 1,900-2,800 lumens
    Green: 4,400-6,000 lumens
    Blue: 850-1,180 lumens at 460 nm

* Peak pulsed current operation.