Description
SST-20-B Blue LED
Features
• High Power Blue LED with Peak Wavelength of 450nm
• Typical Wall-Plug Efficiency of 72% at 350 mA
• Maximum drive current: 3 A
• Available with 2 industry standard soldering footprint configurations
• High thermal conductivity package – junction thermal resistance of only 3.5°C/W
• Available with 120° viewing angle
• 8000V HBM ESD rating per MIL STD-883D
• Electrically isolated thermal path
• RoHS and REACh compliant
Applications
• Horticulture / Growlights
• Accent and effect lighting
• Architectural lighting
• Remote-phosphor fixtures
• Stage lighting
SST-20 Binning Structure
SST-20 Blue LEDs are tested for luminous flux and chromaticity at a drive current of 350mA – 20ms single pulse and placed into one of the following luminous flux (FF) and chromaticity (WW) bins:
Flux Bins – Test condition=350mA, 250C, 20ms pulse
| Flux Bin (FF) | Minimum Flux (mW) | Maximum Flux (mW) |
| R | 630 | 670 |
| S | 670 | 710 |
| T | 710 | 750 |
| U | 750 | 790 |
| V | 790 | 830 |
Wavelength Bins – Test condition=350mA, 250C, 20ms pulse
| Chromaticity Bin (WW) | Minimum Wavelength (nm) | Maximum Wavelength (nm) |
| B2 | 440 | 445 |
| B3 | 445 | 450 |
| B4 | 450 | 455 |
| B5 | 455 | 460 |
Ordering Information
| Products | Ordering Part Number | Description |
| SST-20-B-A120 | SST-20-B-A120-xx123 | High Power 2-mm2 Blue LED in a 3535 surface mount package and a 120-degree viewing angle – Type A soldering pad configuration |
| SST-20-B-B120 | SST-20-B-B120-xx123 | High Power 2-mm2 Blue LED in a 3535 surface mount package and a 120-degree viewing angle – Type B soldering pad configuration |
SST-20 Blue Bin Kit Order Codes
| Color | Luminous Flux | Chromaticity Bins | Kit Number | |
| Bin Kit Flux
Code |
Min. Flux | |||
| Blue | R | 630 | B2,B3,B4,B5 | R450 |
| S | 670 | B2,B3,B4,B5 | S450 | |
| T | 710 | B2,B3,B4,B5 | T450 | |
Optical and Electrical Characteristics at 350mA
| Parameter | Symbol | Minimum | Typical | Maximum | Unit |
| Forward Current at test2 | If | 350 | mA | ||
| Output Radiometric Power | Φ
r |
710 | mW | ||
| Forward Voltage | Vf | 2.5 | 2.80 | 3.2 | V |
| Wall-Plug Efficiency | WPE | 72 | % | ||
| Photosynthetic Photon Flux (PPF)4 | μmol/s | 2.68 | |||
| PPF Efficacy (PPF/W) | μmol/J | 2.73 | |||
| Viewing Angle (A120 / B120) | 2 Ø1/2 | 120 | degrees | ||
| Peak Wavelength | λP | 440 | 450 | 460 | nm |
| FWHM | Δλ1/2 | 20 | 22 | 24 | nm |
| Forward Current (CW)2 | Ifmin, Ifmax | 0.2 | 3 | A | |
| Maximum Surge Current | If-smax | 4 | A | ||
| Maximum Reverse Current3 | Irev | N.A. | |||
| LED Junction Temperature | T
J |
150 | 0C | ||
| ESD withstand Voltage
HBM Per JEDEC/ESDA STANDARD JS-001 |
VHBM | 8000 | V | ||
| ESD withstand Voltage
CDM Per JEDEC/ESDA STANDARD JS-002 |
VCDM | 1000 | V | ||
| Operating Temperature | TOPR | -40 | 80 | 0C | |
| Storage Temperature | TSTG | -40 | 100 | 0C | |
| Thermal resistance junction to case (electrical) | RΘJc-El | 3.5 | °c/W |
