3535 RGB LEDs

3535 RGB LEDs | 3535 RGB Tri-Chip High-Power LEDs 

Overview

Queendom’s 3535 RGB tri-chip LED integrates red, green, and blue chips into a single 3.5×3.5×3.2 mm ceramic package. Built on high-thermal-conductivity aluminum nitride (AlN) substrate with silicone top-mold encapsulation, it delivers stable, high-intensity output for demanding applications such as PCR instruments, DNA analyzers, flow cytometry, and medical diagnostics. The monolithic design ensures precise spatial alignment and consistent color mixing.

Available Models & Part Numbers

3535 RGB Tri-Chip LEDs – Optical & Electrical Characteristics (T_j = 25°C)

Note: All devices use high-reliability Epistar (green/blue) and Purui (red) chips. Emission angle: 120°. Binning ensures tight wavelength control for critical bio-optical applications.

1. 3535 RGB Tri-Chip LEDs

• Configuration: 3 independent dies (Red + Green + Blue) in single package; common anode or cathode
• Wavelength Ranges:
  • Red: 619–630 nm
  • Green: 520–535 nm
  • Blue: 460–478 nm
• Operating Current (per channel):
  • Standard: 300 mA – 700 mA (continuous)
  • Pulsed: Up to 1000 mA (10% duty cycle, 100 Hz)
• Forward Voltage (V_F) @ 350 mA:
  • Red: 1.8 – 2.4 V
  • Green / Blue: 2.8 – 3.2 V
• Typical Applications: PCR instruments, flow cytometry, fluorescence excitation, full-color medical indicators

2. 3535 Monochrome LEDs

• Available Colors & Wavelengths:
  • Red: 620–630 nm
  • Orange: 605–615 nm
  • Amber: 585–595 nm
  • Green: 520–530 nm
  • Blue: 450–470 nm
  • Purple / UV: 400–410 nm
• Operating Current:
  • Standard: 350 mA (continuous)
  • High-power: up to 700 mA (with thermal management)
  • Pulsed: up to 1200 mA (10% duty cycle)
• Forward Voltage (V_F) @ 350 mA:
  • Red / Orange / Amber: 1.8 – 2.2 V
  • Green / Blue / Purple: 2.8 – 3.6 V
• Radiant Flux (Example): 630 nm Red: 100–140 mW @ 350 mA

Key Features

• True RGB Integration: Three independent dies (R+G+B) in one SMD package
• Medical-Grade Chips: Epistar (TW) & Purui (US) – high reliability, low degradation
• Wide Drive Range: Supports 300 mA, 700 mA, and pulsed operation up to 1000 mA
• 120° Viewing Angle: Lambertian emission for uniform illumination
• Ceramic Substrate: AlN base with thermal resistance R_θJA ≈ 18°C/W
• Reflow-Compatible: Withstands IR reflow (260°C, 3–5 s)

Applications

• Medical Diagnostics: Real-time PCR, fluorescence detection, blood analysis
• Life Science Instruments: Flow cytometers, microplate readers, DNA sequencers
• Industrial Sensing: Colorimetric sensors, machine vision with dynamic lighting
• High-Reliability Signage: Full-color indicators requiring long-term stability

Benefits for Medical & Bio Applications

• Wavelength Precision: Tight binning (±2 nm) ensures repeatability in optical assays
• Low Thermal Drift: Ceramic package minimizes λ-shift during prolonged operation
• No Phosphor Degradation: Direct-emission RGB avoids phosphor aging issues in white LEDs
• Compact Footprint: Single-package solution reduces optical alignment complexity