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CFBS20A
UVLEDTEK CFBS20A is a chip that emits light in the UVB band. It has a flip-chip structure and AuSn electrodes. It is widely used in plant growth, medical phototherapy, optical sensors, biological analysis/detection and other fields.
Features
• UVB LED chip, peak wavelength 295-315nm
• Flip structure, AuSn electrode
• Advanced UV LED design, compact and lightweight
• Excellent thermal properties and reliability
Specification
Mechanical Specifications
Item | Parameters |
Chip Length | 546±30um |
Chip Width | 546±30um |
GAP Width | 100±5um |
Chip Thickness | 340±30um |
Chip Structure | Flip-chip structure |
Electrode | Both N and P are Ausn electrodes. |

Electrical / Optical Characteristics Parameters
• Electrical / Optical Characteristics (Ta = 25℃, RH=30%)
Item | Parameters |
Forward Voltage (VF) | If=100mA, 5-7V |
Peak wavelength (WLP) | If=100mA, 295-315nm |
Radiometric Power (Po) | If=100mA, 10-30mW |
Spectra Half Width (HL) | If=100mA, Typ.11nm, Max.13nm |
• Sorting BIN Specifications
SPEC | WLP(nm) |
W31 | Rating: 295~305 |
W36 | Rating: 305~310 |
W33 | Rating: 310~315 |
SPEC | LOP(mW) |
P026 | Rating: 10~12 |
P035 | Rating: 12~15 |
P054 | Rating: 15~20 |
P101 | Rating: 20~30 |
SPEC | Vf(V) |
V50 | Rating: 5~5.3 |
V14 | Rating: 5.3~5.4 |
V15 | Rating: 5.4~5.5 |
V16 | Rating: 5.5~5.6 |
V17 | Rating: 5.6~5.7 |
V52 | Rating: 5.7~6 |
V53 | Rating: 6.0~6.5 |
V54 | Rating: 6.5~7 |
V01 | Rating: 5~6 |
V02 | Rating: 6~7 |
Characteristic Curve

Table Overview for UVLEDTEK
UV-B LED Chip
Item | CFBS20M | CFBS20A | CFBS45A |
Voltage (V) | 5~7 | 5~7 | 5~7 |
Power (mA) | 40 | 100 | 350 |
Optical Power (mW) | 4~20 | 10~30 | 50~120 |
Wavelength (nm) | 295~315 | 295~315 | 295~315 |
L50@60°C (hr) | 20000 | 20000 | 20000 |
Spectra Half Width (nm) | Max.13 | Max.13 | Max.13 |
Dimensions (um) | 230*536*280 | 546*546*340 | 1178*1178*400 |
More Details | Learn More | Learn More | Learn More |
Applications
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